How to write code in C language to find the absolute value

In the C language, the abs() function can be used to calculate the absolute value of a number. The prototype of this function is:

int abs(int x);

Here is an example code:

#include <stdio.h>
#include <stdlib.h>

int main() {
   int x = -5;
   int result = abs(x);
   printf("绝对值为：%d\n", result);

   return 0;
}

Running the above code will produce:

绝对值为：5