Submission #2225916

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Source Code Expand

#include <stdio.h>
#include <math.h>
#include <string.h>
int point[1001][5];
double max=-1;
int main(){
	int n;
	scanf("%d",&n);
	int i,j;
	for(i=1;i<=n;i++)
		scanf("%d%d",&point[i][1],&point[i][2]);
	for(i=1;i<=n;i++){
		for(j=i+1;j<=n;j++){
			double a1=point[i][1]-point[j][1];
			double a2=point[i][2]-point[j][2];
			double k=sqrt(a1*a1+a2*a2);
			if(k>max)max=k;
		}
	}
	printf("%.6f\n",max);
	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:8:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ^
./Main.c:11:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&point[i][1],&point[i][2]);
   ^

Judge Result