Submission #1961600

---

Source Code Expand

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

double max(double a, double b){
	return a >= b ? a : b;
}

int main(){
	int N, i, j;
	double ans = 0;
	scanf("%d", &N);
	double *x = (double *)malloc(sizeof(double) * N);
	double *y = (double *)malloc(sizeof(double) * N);
	for(i = 0; i < N; i++){
		scanf("%lf%lf", &x[i], &y[i]);
	}
	for(i = 0; i < N; i++){
		for(j = i + 1; j < N; j++){
			ans = max(ans, hypot(x[i] - x[j], y[i] - y[j]));
		}
	}
	printf("%lf\n", ans);
	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:12:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ^
./Main.c:16:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lf%lf", &x[i], &y[i]);
   ^

Judge Result