{"id":780,"date":"2023-08-28T02:04:42","date_gmt":"2023-04-15T03:46:40","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/c%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b2d%e3%83%99%e3%82%af%e3%83%88%e3%83%ab-%e5%ae%9f%e8%b7%b5%e7%9a%84%e3%81%aa%e3%82%ac%e3%82%a4%e3%83%892d%e3%83%99%e3%82%af%e3%83%88%e3%83%ab\/"},"modified":"2025-08-01T02:25:03","modified_gmt":"2025-07-31T17:25:03","slug":"c%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b2d%e3%83%99%e3%82%af%e3%83%88%e3%83%ab-%e5%ae%9f%e8%b7%b5%e7%9a%84%e3%81%aa%e3%82%ac%e3%82%a4%e3%83%892d%e3%83%99%e3%82%af%e3%83%88%e3%83%ab","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/c%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b2d%e3%83%99%e3%82%af%e3%83%88%e3%83%ab-%e5%ae%9f%e8%b7%b5%e7%9a%84%e3%81%aa%e3%82%ac%e3%82%a4%e3%83%892d%e3%83%99%e3%82%af%e3%83%88%e3%83%ab\/","title":{"rendered":"C++\u306b\u304a\u3051\u308b2D\u30d9\u30af\u30c8\u30eb- \u5b9f\u8df5\u7684\u306a\u30ac\u30a4\u30c92D\u30d9\u30af\u30c8\u30eb"},"content":{"rendered":"

C++\u306b\u304a\u3044\u3066\u30012\u6b21\u5143\u306e\u30d9\u30af\u30c8\u30eb\u306f\u30d9\u30af\u30c8\u30eb\u306e\u30d9\u30af\u30c8\u30eb\u3068\u3082\u547c\u3070\u308c\u3001\u884c\u5217\u3084\u30c6\u30fc\u30d6\u30eb\u3001\u307e\u305f\u306f\u4ed6\u306e\u69cb\u9020\u7269\u3092\u52d5\u7684\u306b\u4f5c\u6210\u3059\u308b\u969b\u306e\u57fa\u790e\u3068\u306a\u308a\u307e\u3059\u3002C++\u306b\u304a\u3051\u308b2\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u306e\u8a71\u984c\u306b\u5165\u308b\u524d\u306b\u3001C++\u30671\u6b21\u5143\u306e\u30d9\u30af\u30c8\u30eb\u3092\u4f7f\u7528\u3059\u308b\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3092\u53c2\u8003\u306b\u3059\u308b\u3053\u3068\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n

\u30d9\u30af\u30c8\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u3092\u542b\u3081\u308b<\/h2>\n

\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5192\u982d\u306b\u542b\u307e\u308c\u308b\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u3055\u3048\u306a\u3051\u308c\u3070\u3001C++\u3067\u30d9\u30af\u30c8\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u80fd\u3067\u3059\u30022D\u30d9\u30af\u30c8\u30eb\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4ee5\u4e0b\u3092\u542b\u3081\u307e\u3059\u3002<\/p>\n

#<\/span>include<\/span><vector><\/span><\/span>\r\n<\/code><\/pre>\n
1\u3064\u305a\u3064\u69d8\u3005\u306a\u7a2e\u985e\u306e\u6a19\u6e96\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\uff08STL\uff09\u3092\u542b\u3081\u308b\u4ee3\u308f\u308a\u306b\u3001\u79c1\u305f\u3061\u306f\u3059\u3079\u3066\u3092\u4e00\u5ea6\u306b\u542b\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
#<\/span>include<\/span><bits\/stdc++.h><\/span><\/span>\r\n<\/code><\/pre>\n
\n
C++\u30672\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u3092\u521d\u671f\u5316\u3059\u308b<\/h2>\n
\u307e\u305a\u30012\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u306e\u521d\u671f\u5316\u65b9\u6cd5\u306e\u3044\u304f\u3064\u304b\u3092\u5b66\u3073\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u30b9\u30cb\u30da\u30c3\u30c8\u3067\u306f\u3001\u8981\u7d20\u304c\u3059\u3079\u3066\u65e2\u77e5\u306e\u5834\u5408\u306e2\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u306e\u521d\u671f\u5316\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
#<\/span>include<\/span><iostream><\/span><\/span>\r\n#<\/span>include<\/span><vector><\/span><\/span>\r\nusing<\/span> namespace<\/span> std;<\/span>\r\n\r\nint<\/span> main<\/span>(<\/span>)<\/span>{<\/span>\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span> v {<\/span>{<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>,<\/span> {<\/span>0<\/span>,<\/span> 1<\/span>}<\/span>,<\/span> {<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>}<\/span>;<\/span> \r\n\tfor<\/span>(<\/span>int<\/span> i=<\/span>0<\/span>;<\/span>i<<\/span>v.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>i++<\/span>)<\/span>{<\/span>\r\n\t\tfor<\/span>(<\/span>int<\/span> j=<\/span>0<\/span>;<\/span>j<<\/span>v[<\/span>i]<\/span>.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>j++<\/span>)<\/span>\r\n\t\t\tcout<<<\/span>v[<\/span>i]<\/span>[<\/span>j]<\/span><<<\/span>\" \"<\/span>;<\/span>\r\n\t\tcout<<<\/span>endl;<\/span>\r\n\t}<\/span>\t\t\t\t\t   \r\n}<\/span>\r\n<\/code><\/pre>\n
\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u51fa\u529b\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n
1 0 1 \r\n0 1 \r\n1 0 1 \r\n<\/code><\/pre>\n
\u300cvector<vector<>>\u300d\u306e\u4f7f\u7528\u306f\u3001\u79c1\u305f\u3061\u304c\u30d9\u30af\u30c8\u30eb\u306e\u30d9\u30af\u30c8\u30eb\u3067\u4f5c\u696d\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002\u6700\u521d\u306e\u62ec\u5f27\u5185\u306e\u5404\u5024\u3001\u300c{1, 0, 1}\u300d\u3084\u300c{0, 1}\u300d\u306a\u3069\u306f\u3001\u305d\u308c\u305e\u308c\u304c\u72ec\u7acb\u3057\u305f\u30d9\u30af\u30c8\u30eb\u3067\u3059\u3002<\/p>\n
\u6ce8\u610f: C++\u3067\u7570\u306a\u308b\u30c7\u30fc\u30bf\u578b\u306e2D\u30d9\u30af\u30c8\u30eb\u3092\u4f5c\u6210\u3059\u308b\u306b\u306f\u3001\u306e\u3088\u3046\u306b\u5185\u90e8\u306e\u6700\u3082\u89d2\u62ec\u5f27\u306b\u30c7\u30fc\u30bf\u578b\u3092\u914d\u7f6e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p><\/blockquote>\n
\u4e8c\u6b21\u5143\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u6271\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u5168\u4f53\u306e\u8d70\u67fb\u306b\u306f\u30012\u3064\u306e\u30eb\u30fc\u30d7\u304c\u5fc5\u8981\u3067\u3059\u3002\u5916\u5074\u306e\u30eb\u30fc\u30d7\u306f\u884c\u3092\u79fb\u52d5\u3057\u3001\u5185\u5074\u306e\u30eb\u30fc\u30d7\u306f\u5217\u3092\u8d70\u67fb\u3057\u307e\u3059\u3002<\/p>\n
\u6ce8: ‘size\uff08\uff09’\u95a2\u6570\u306f\u30012D\u30d9\u30af\u30c8\u30eb\u5185\u306e\u30d9\u30af\u30c8\u30eb\u306e\u6570\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u5404\u500b\u3005\u306e\u30d9\u30af\u30c8\u30eb\u5185\u306e\u8981\u7d20\u306e\u5408\u8a08\u6570\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p><\/blockquote>\n
2D\u30d9\u30af\u30c8\u30eb\u306e\u521d\u671f\u5316\u6642\u306b\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3059\u308b<\/h3>\n
2D\u30d9\u30af\u30c8\u30eb\u306f\u5927\u304d\u306a\u30b5\u30a4\u30ba\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30d7\u30ed\u30b0\u30e9\u30de\u306b\u3059\u3079\u3066\u306e\u5024\u3092\u5165\u529b\u3057\u3066\u3082\u3089\u3046\u3053\u3068\u306f\u671f\u5f85\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u3001\u884c\u6570\u3068\u5217\u6570\u3092\u57fa\u306b2D\u30d9\u30af\u30c8\u30eb\u3092\u521d\u671f\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
#<\/span>include<\/span><iostream><\/span><\/span>\r\n#<\/span>include<\/span><vector><\/span><\/span>\r\nusing<\/span> namespace<\/span> std;<\/span>\r\n\r\nint<\/span> main<\/span>(<\/span>)<\/span>{<\/span>\r\n\t\/\/Number of columns<\/span>\r\n\tint<\/span> num_col =<\/span> 3<\/span>;<\/span>\r\n\r\n\t\/\/ Number of rows<\/span>\r\n\tint<\/span> num_row =<\/span> 4<\/span>;<\/span>\r\n\r\n\t\/\/ Initializing a single row<\/span>\r\n\tvector<<\/span>int<\/span>><\/span> row<\/span>(<\/span>num_col,<\/span> 0<\/span>)<\/span>;<\/span>\r\n\r\n\t\/\/ Initializing the 2-D vector<\/span>\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span> v<\/span>(<\/span>num_row,<\/span> row)<\/span> ;<\/span>\r\n\r\n\tfor<\/span>(<\/span>int<\/span> i=<\/span>0<\/span>;<\/span>i<<\/span>v.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>i++<\/span>)<\/span>{<\/span>\r\n\t\tfor<\/span>(<\/span>int<\/span> j=<\/span>0<\/span>;<\/span>j<<\/span>v[<\/span>i]<\/span>.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>j++<\/span>)<\/span>\r\n\t\t\tcout<<<\/span>v[<\/span>i]<\/span>[<\/span>j]<\/span><<<\/span>\" \"<\/span>;<\/span>\r\n\t\tcout<<<\/span>endl;<\/span>\r\n\t}<\/span>\t\t\t\t\t   \r\n}<\/span>\r\n<\/code><\/pre>\n
\u51fa\u529b\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 (Shutsuryoku wa tsugi no you ni narimasu.)<\/p>\n
0 0 0 \r\n0 0 0 \r\n0 0 0 \r\n0 0 0 \r\n<\/code><\/pre>\n
\u6a19\u6e96\u306e\u30d9\u30af\u30c8\u30eb\u306e\u521d\u671f\u5316\u300cvector v(10, 0)\u300d\u306b\u3088\u308c\u3070\u3001\u6700\u521d\u306e\u5f15\u6570\u306f\u30d9\u30af\u30c8\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u8868\u3057\u30012\u756a\u76ee\u306e\u5f15\u6570\u306f\u5404\u30bb\u30eb\u304c\u6301\u3064\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5024\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n
\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u30b9\u30cb\u30da\u30c3\u30c8\u3067\u306f\u3001\u6a19\u6e96\u306e\u521d\u671f\u5316\u306e2\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u306b\u5f93\u3044\u307e\u3059\u3002<\/p>\n
    \n
  • ‘vector row(num_col, 0)’ – In this statement, we create a single-dimensional vector called ‘row’, which has length defined by ‘num_col’ and default values as ‘0’. It basically forms each row of our two-dimensional vector.<\/li>\n
  • ‘vector<vector> v(num_row, row) – In this statement, we create our complete two-dimensional vector, by defining every value of the 2-D vector as the ‘row’ created in the last statement.<\/li>\n<\/ul>\n
    \u4e0a\u8a18\u306e\u624b\u9806\u3092\u7406\u89e3\u3057\u305f\u5f8c\u3001C++\u3067\u306e2D\u30d9\u30af\u30c8\u30eb\u306e\u521d\u671f\u5316\u3092\u6539\u5584\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
    #<\/span>include<\/span><iostream><\/span><\/span>\r\n#<\/span>include<\/span><vector><\/span><\/span>\r\nusing<\/span> namespace<\/span> std;<\/span>\r\n\r\nint<\/span> main<\/span>(<\/span>)<\/span>{<\/span>\r\n\t\/\/Number of columns<\/span>\r\n\tint<\/span> num_col =<\/span> 3<\/span>;<\/span>\r\n\r\n\t\/\/ Number of rows<\/span>\r\n\tint<\/span> num_row =<\/span> 4<\/span>;<\/span>\r\n\r\n\t\/\/ Initializing the 2-D vector<\/span>\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span> v<\/span>(<\/span>num_row,<\/span> vector<\/span><<\/span>int<\/span>><\/span><\/span><\/span> (<\/span>num_col,<\/span> 0<\/span>)<\/span>)<\/span> ;<\/span>\r\n\r\n\tfor<\/span>(<\/span>int<\/span> i=<\/span>0<\/span>;<\/span>i<<\/span>v.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>i++<\/span>)<\/span>{<\/span>\r\n\t\tfor<\/span>(<\/span>int<\/span> j=<\/span>0<\/span>;<\/span>j<<\/span>v[<\/span>i]<\/span>.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>j++<\/span>)<\/span>\r\n\t\t\tcout<<<\/span>v[<\/span>i]<\/span>[<\/span>j]<\/span><<<\/span>\" \"<\/span>;<\/span>\r\n\t\tcout<<<\/span>endl;<\/span>\r\n\t}<\/span>\t\t\t\t\t   \r\n}<\/span>\r\n<\/code><\/pre>\n
    \u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306f\u3001\u79c1\u305f\u3061\u304c\u5168\u304f\u540c\u3058\u3053\u3068\u3092\u3057\u3066\u3044\u308b\u304c\u30011\u884c\u306e\u30b3\u30fc\u30c9\u3067\u884c\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u4ee5\u524d\u3068\u540c\u69d8\u306e\u51fa\u529b\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n
    \u6b63\u3057\u304f\u8a18\u61b6\u3057\u3066\u3044\u308b\u9650\u308a\u3001\u6a19\u6e96\u7684\u306a\u521d\u671f\u5316\u306f\u4e0a\u8a18\u306e\u3082\u306e\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002\u4e8c\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u3092\u4f5c\u6210\u3059\u308b\u969b\u306b\u306f\u3001\u5404\u8981\u7d20\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u4e00\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u3068\u3057\u3066\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
    \u6700\u5f8c\u306e\u65b9\u6cd5\u306f\u3001\u884c\u3084\u5217\u306e\u77e5\u8b58\u306a\u3057\u30672\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u6b21\u306e\u3088\u3046\u306b\u884c\u308f\u308c\u307e\u3059\uff1a<\/p>\n
    vector<<\/span>vector<<\/span>int<\/span>>><\/span> v;<\/span>\r\n<\/code><\/pre>\n
    \u4e0a\u8a18\u306e\u5ba3\u8a00\u306f\u3001\u30d9\u30af\u30c8\u30eb\u306e\u5f62\u3067\u8981\u7d20\u3092\u4fdd\u5b58\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306a\u7a7a\u306e\u30b3\u30f3\u30c6\u30ca\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
    \n
    \uff12\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u306e\u30a4\u30c6\u30ec\u30fc\u30bf<\/h2>\n
    C++\u306b\u306f\u30012D\u30d9\u30af\u30bf\u30fc\u3092\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3067\u30c8\u30e9\u30d0\u30fc\u30b9\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001\u305d\u308c\u305e\u308c\u306eSTL\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u5bfe\u3057\u3066\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u6a5f\u80fd\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
    #<\/span>include<\/span><iostream><\/span><\/span>\r\n#<\/span>include<\/span><vector><\/span><\/span>\r\nusing<\/span> namespace<\/span> std;<\/span>\r\n\r\nint<\/span> main<\/span>(<\/span>)<\/span>{<\/span>\r\n\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span> v {<\/span>{<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>,<\/span> {<\/span>0<\/span>,<\/span> 1<\/span>}<\/span>,<\/span> {<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>}<\/span>;<\/span> \r\n\r\n\t\/\/ Iterator for the 2-D vector<\/span>\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span>::<\/span>iterator it1;<\/span>\r\n\r\n\t\/\/ Iterator for each vector inside the 2-D vector<\/span>\r\n\tvector<<\/span>int<\/span>><\/span>::<\/span>iterator it2;<\/span>\r\n\r\n\t\/\/ Traversing a 2-D vector using iterators<\/span>\r\n\tfor<\/span>(<\/span>it1 =<\/span> v.<\/span>begin<\/span>(<\/span>)<\/span>;<\/span>it1 !=<\/span> v.<\/span>end<\/span>(<\/span>)<\/span>;<\/span>it1++<\/span>)<\/span>{<\/span>\r\n\t\tfor<\/span>(<\/span>it2 =<\/span> it1-><\/span>begin<\/span>(<\/span>)<\/span>;<\/span>it2 !=<\/span> it1-><\/span>end<\/span>(<\/span>)<\/span>;<\/span>it2++<\/span>)<\/span>\r\n\t\t\tcout<<<\/span>*<\/span>it2<<<\/span>\" \"<\/span>;<\/span>\r\n\t\tcout<<<\/span>endl;<\/span>\r\n\t}<\/span>\t\t\t\t\t   \r\n}<\/span>\r\n<\/code><\/pre>\n
    \u51fa\u529b\uff1a<\/p>\n
    1 0 1 \r\n0 1 \r\n1 0 1 \r\n<\/code><\/pre>\n
    \u7279\u5b9a\u306e\u64cd\u4f5c\u306b\u4f4d\u7f6e\u3092\u6307\u5b9a\u3059\u308b\u5f15\u6570\u304c\u5fc5\u8981\u306a\u5834\u5408\u3001\u30a4\u30c6\u30ec\u30fc\u30bf\u304c\u4fbf\u5229\u3067\u3059\u3002\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u5024\u3092\u8fd4\u3059\u6700\u3082\u4f7f\u7528\u3055\u308c\u308b2\u3064\u306e\u95a2\u6570\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
      \n
    • ‘v.begin()’ – It returns an iterator to the first vector in a 2-D vector.<\/li>\n
    • ‘v.end()’ – It returns an iterator to the end of the 2-D vector.<\/li>\n<\/ul>\n
      2\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u3067\u53ef\u80fd\u306a\u3044\u304f\u3064\u304b\u306e\u64cd\u4f5c\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
      \n
      2\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u306b\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b<\/h2>\n
      \u4e8c\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u306e\u672b\u5c3e\u306b\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u300cpush_back()\u300d\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
      #<\/span>include<\/span><iostream><\/span><\/span>\r\n#<\/span>include<\/span><vector><\/span><\/span>\r\nusing<\/span> namespace<\/span> std;<\/span>\r\n\r\nint<\/span> main<\/span>(<\/span>)<\/span>{<\/span>\r\n\r\n\t\/\/ Initializing the 2-D vector<\/span>\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span> v;<\/span>\r\n\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\r\n\tfor<\/span>(<\/span>int<\/span> i=<\/span>0<\/span>;<\/span>i<<\/span>v.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>i++<\/span>)<\/span>{<\/span>\r\n\t\tfor<\/span>(<\/span>int<\/span> j=<\/span>0<\/span>;<\/span>j<<\/span>v[<\/span>i]<\/span>.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>j++<\/span>)<\/span>\r\n\t\t\tcout<<<\/span>v[<\/span>i]<\/span>[<\/span>j]<\/span><<<\/span>\" \"<\/span>;<\/span>\r\n\t\tcout<<<\/span>endl;<\/span>\r\n\t}<\/span>\t\t\t\t\t   \r\n}<\/span>\r\n<\/code><\/pre>\n
      \u51fa\u529b:<\/p>\n
      1 0 1 \r\n0 1 \r\n1 0 1 \r\n<\/code><\/pre>\n
      \u79c1\u305f\u3061\u306e\u30b3\u30f3\u30c6\u30ca\u306f\u3001\u30d9\u30af\u30c8\u30eb\u306e\u30d9\u30af\u30c8\u30eb\u306a\u306e\u3067\u3001\u305d\u308c\u306b\u5b8c\u5168\u306a\u30d9\u30af\u30c8\u30eb\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306f\u610f\u5473\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001’push_back\uff08\uff09’\u95a2\u6570\u306b\u6e21\u3055\u308c\u308b\u5f15\u6570\u306f\u30d9\u30af\u30c8\u30eb\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n
      \u6ce8\u610f\uff1a ‘v[i]’ \u306f\u30011\u6b21\u5143\u306e\u30d9\u30af\u30c8\u30eb\u3092\u8868\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u304c2\u6b21\u5143\u306e\u30d9\u30af\u30c8\u30eb\u5185\u306e\u7279\u5b9a\u306e\u30d9\u30af\u30c8\u30eb\u306b\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001’v[i].push_back(value)’\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p><\/blockquote>\n
      \u7279\u5b9a\u306e\u4f4d\u7f6e\u306b\u5b8c\u5168\u306a\u30d9\u30af\u30c8\u30eb\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u306b\u3001\u79c1\u305f\u3061\u306f\u300cinsert\uff08\uff09\u300d\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
      #<\/span>include<\/span><iostream><\/span><\/span>\r\n#<\/span>include<\/span><vector><\/span><\/span>\r\nusing<\/span> namespace<\/span> std;<\/span>\r\n\r\nint<\/span> main<\/span>(<\/span>)<\/span>{<\/span>\r\n\r\n\t\/\/ Initializing the 2-D vector<\/span>\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span> v;<\/span>\r\n\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\r\n\t\/\/ Iterator for the 2-D vector<\/span>\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span>::<\/span>iterator it =<\/span> v.<\/span>begin<\/span>(<\/span>)<\/span>;<\/span>\r\n\r\n\t\/\/ Inserting the vector = {1, 2, 3} as the second vector<\/span>\r\n\tv.<\/span>insert<\/span>(<\/span>it +<\/span> 1<\/span>,<\/span> {<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>}<\/span>)<\/span>;<\/span>\r\n\t\t\t\t  \r\n\tfor<\/span>(<\/span>int<\/span> i=<\/span>0<\/span>;<\/span>i<<\/span>v.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>i++<\/span>)<\/span>{<\/span>\r\n\t\tfor<\/span>(<\/span>int<\/span> j=<\/span>0<\/span>;<\/span>j<<\/span>v[<\/span>i]<\/span>.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>j++<\/span>)<\/span>\r\n\t\t\tcout<<<\/span>v[<\/span>i]<\/span>[<\/span>j]<\/span><<<\/span>\" \"<\/span>;<\/span>\r\n\t\tcout<<<\/span>endl;<\/span>\r\n\t}<\/span>\t\t\t\t   \r\n}<\/span>\r\n<\/code><\/pre>\n
      \u51fa\u529b:
      \n\u7d50\u679c\uff1a<\/p>\n
      1 0 1 \r\n1 2 3 \r\n0 1 \r\n1 0 1 \r\n<\/code><\/pre>\n
      \u300cinsert()\u300d\u95a2\u6570\u306b\u304a\u3044\u3066\u3001\u4f4d\u7f6e\u6307\u5b9a\u306e\u5f15\u6570\u3068\u3057\u3066\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6307\u5b9a\u3055\u308c\u305f\u5834\u6240\u306b\u633f\u5165\u3059\u308b\u30d9\u30af\u30c8\u30eb\u304c\u305d\u308c\u306b\u7d9a\u304d\u307e\u3059\u3002<\/p>\n
      \n
      C++\u306b\u304a\u3044\u30662D\u30d9\u30af\u30c8\u30eb\u304b\u3089\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5<\/h2>\n
      C++\u306b\u306f\u3001\u4e0e\u3048\u3089\u308c\u305f\u30d9\u30af\u30c8\u30eb\u304b\u3089\u6700\u5f8c\u306e\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u5f79\u5272\u3092\u6301\u3064 ‘pop_back()’ \u95a2\u6570\u304c\u5b58\u5728\u3057\u307e\u3059\u3002’push_back()’ \u3068\u306f\u9006\u306b\u3001\u3053\u306e\u95a2\u6570\u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n
      \u3053\u306e\u8a18\u4e8b\u306e\u6587\u8108\u306b\u304a\u3044\u3066\u3001\u300cpop_back()\u300d\u95a2\u6570\u306f2\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u304b\u3089\u6700\u5f8c\u306e\u30d9\u30af\u30c8\u30eb\u3092\u524a\u9664\u3059\u308b\u8cac\u4efb\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
      #<\/span>include<\/span><iostream><\/span><\/span>\r\n#<\/span>include<\/span><vector><\/span><\/span>\r\nusing<\/span> namespace<\/span> std;<\/span>\r\n\r\nint<\/span> main<\/span>(<\/span>)<\/span>{<\/span>\r\n\r\n\t\/\/ Initializing the 2-D vector<\/span>\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span> v ;<\/span>\r\n\r\n\t\/\/ Adding vectors to the empty 2-D vector<\/span>\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\r\n\t\/\/ Remove the last vector from a 2-D vector<\/span>\r\n\tv.<\/span>pop_back<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\t\t\t  \r\n\tfor<\/span>(<\/span>int<\/span> i=<\/span>0<\/span>;<\/span>i<<\/span>v.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>i++<\/span>)<\/span>{<\/span>\r\n\t\tfor<\/span>(<\/span>int<\/span> j=<\/span>0<\/span>;<\/span>j<<\/span>v[<\/span>i]<\/span>.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>j++<\/span>)<\/span>\r\n\t\t\tcout<<<\/span>v[<\/span>i]<\/span>[<\/span>j]<\/span><<<\/span>\" \"<\/span>;<\/span>\r\n\t\tcout<<<\/span>endl;<\/span>\r\n\t}<\/span>\t\t\t\t   \r\n}<\/span>\r\n<\/code><\/pre>\n
      \u51fa\u529b:<\/p>\n
      1 0 1 \r\n0 1 \r\n<\/code><\/pre>\n
      ‘pop_back()’\u95a2\u6570\u306b\u52a0\u3048\u3066\u3001\u6307\u5b9a\u3057\u305f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304b\u3089\u8981\u7d20\u3092\u524a\u9664\u3059\u308b’erase()’\u95a2\u6570\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n
      #<\/span>include<\/span><iostream><\/span><\/span>\r\n#<\/span>include<\/span><vector><\/span><\/span>\r\nusing<\/span> namespace<\/span> std;<\/span>\r\n\r\nint<\/span> main<\/span>(<\/span>)<\/span>{<\/span>\r\n\r\n\t\/\/ Initializing the 2-D vector<\/span>\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span> v ;<\/span>\r\n\r\n\t\/\/ Pushing vector inside the empty 2-D vector<\/span>\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\tv.<\/span>push_back<\/span>(<\/span>{<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>)<\/span>;<\/span>\r\n\r\n\t\/\/ Iterator for the 2-D vector<\/span>\r\n\tvector<<\/span>vector<<\/span>int<\/span>>><\/span>::<\/span>iterator it =<\/span> v.<\/span>begin<\/span>(<\/span>)<\/span>;<\/span>\r\n\r\n\t\/\/ Remove the second vector from a 2-D vector<\/span>\r\n\tv.<\/span>erase<\/span>(<\/span>it +<\/span> 1<\/span>)<\/span>;<\/span>\r\n\t\t\t\t  \r\n\tfor<\/span>(<\/span>int<\/span> i=<\/span>0<\/span>;<\/span>i<<\/span>v.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>i++<\/span>)<\/span>{<\/span>\r\n\t\tfor<\/span>(<\/span>int<\/span> j=<\/span>0<\/span>;<\/span>j<<\/span>v[<\/span>i]<\/span>.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>j++<\/span>)<\/span>\r\n\t\t\tcout<<<\/span>v[<\/span>i]<\/span>[<\/span>j]<\/span><<<\/span>\" \"<\/span>;<\/span>\r\n\t\tcout<<<\/span>endl;<\/span>\r\n\t}<\/span>\t\t\t\t   \r\n}<\/span>\r\n<\/code><\/pre>\n
      \u51fa\u529b\uff1a<\/p>\n
      1 0 1 \r\n1 0 1 \r\n<\/code><\/pre>\n
      ‘insert()’ \u95a2\u6570\u3068\u540c\u69d8\u306b\u3001\u53cd\u5fa9\u5b50\u3068\u3057\u3066\u4f4d\u7f6e\u5f15\u6570\u304c\u5fc5\u8981\u3067\u3059\u30022\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u304b\u3089\u3059\u3079\u3066\u306e\u30d9\u30af\u30c8\u30eb\u3092\u524a\u9664\u3059\u308b\u306b\u306f\u3001’clear()’ \u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
      C++\u306e2\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u3092\u4f7f\u3046\u969b\u306b\u306f\u3001\u4e0a\u8a18\u306e\u6a5f\u80fd\u3067\u5feb\u9069\u306b\u5229\u7528\u3067\u304d\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n
      \n
      \u7d50\u8ad6<\/h2>\n
      C++\u306b\u304a\u3044\u3066\u3001\u4e8c\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u3092\u4f7f\u3046\u3053\u3068\u306f\u975e\u5e38\u306b\u7c21\u5358\u3067\u3059\u304c\u3001\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306f\u95a2\u9023\u3059\u308b\u69cb\u6587\u306b\u3064\u3044\u3066\u8a8d\u8b58\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u884c\u5217\u3001\u30b0\u30e9\u30d5\u3001\u53ca\u3073\u4ed6\u306e\u4e8c\u6b21\u5143\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u95a2\u9023\u3059\u308b\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u969b\u306b\u306f\u3001\u3053\u306e\u7a2e\u985e\u306e\u30d9\u30af\u30c8\u30eb\u304c\u4fbf\u5229\u3067\u3059\u3002<\/p>\n
      \u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u304c2\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u306e\u4f7f\u7528\u306b\u95a2\u3059\u308b\u8aad\u8005\u306e\u7406\u89e3\u3092\u9ad8\u3081\u308b\u3053\u3068\u3092\u9858\u3063\u3066\u3044\u307e\u3059\u3002\u3082\u3057\u30c8\u30d4\u30c3\u30af\u306b\u95a2\u9023\u3059\u308b\u8cea\u554f\u304c\u3042\u308a\u307e\u3057\u305f\u3089\u3001\u4e0b\u8a18\u3078\u306e\u30b3\u30e1\u30f3\u30c8\u3092\u81ea\u7531\u306b\u3069\u3046\u305e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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