How do you compare sizes in an array in the C language?

In C language, one can compare the size of elements in an array by using loops to iterate through the array. Below is an example code that compares the size of array elements using loops.

#include <stdio.h>

int main() {
    int arr[] = {5, 3, 8, 2, 1};
    int size = sizeof(arr) / sizeof(arr[0]);

    // 假设第一个元素为最大值
    int max = arr[0];

    for (int i = 1; i < size; i++) {
        // 如果当前元素大于最大值，则更新最大值
        if (arr[i] > max) {
            max = arr[i];
        }
    }

    printf("数组中的最大值为: %d\n", max);

    return 0;
}

The code first defines an integer array arr, then calculates the size of the array using the sizeof operator. Next, within a for loop, it compares each element of the array to the previously recorded maximum value, and if the current element is greater, it updates the maximum value. Finally, it uses the printf function to output the maximum value in the array.

Similarly, you can compare the minimum value in an array or other specific conditions using a similar method.