【C】#牛牛的线段#

#include <stdio.h>
#include <math.h>

int main() {
    int x1, y1, x2, y2;
    scanf("%d %d %d %d", &x1, &y1, &x2, &y2);
    printf("%d", (int)pow(x1 - x2, 2) + (int)pow(y1 - y2, 2));
    return 0;
}