题解 | 牛牛的线段
牛牛的线段
https://www.nowcoder.com/practice/f72c56ed71664af082c921bf79861c85
#include <stdio.h>
int main() {
int x1,x2,y1,y2;
scanf("%d %d",&x1,&y1);
scanf("%d %d",&x2,&y2);
float l=(x1-x2)*(x1-x2)+(y1-y2)*(y1-y2);
int k=l;
printf("%d",k);
return 0;
}

