Submission #2840793

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Source Code Expand

#include <stdio.h>
#include <math.h>
int main(void){
    int n, x[100], y[100];
    int i, j;
    double maxlen=0.0, num;
    scanf("%d",&n);
    
    for(i=0; i<n; i++){
        scanf("%d",&x[i]);
        scanf("%d",&y[i]);
    }
    
    for(i=0; i<n; i++){
        for(j=0; j<n; j++){
            num = sqrt((x[i]-x[j])*(x[i]-x[j]) + (y[i]-y[j])*(y[i]-y[j]));
            if(x[i] < x[j]){
                num = sqrt((x[j]-x[i])*(x[j]-x[i]) + (y[i]-y[j])*(y[i]-y[j]));
                if(y[i] < y[j]){
                    num = sqrt((x[j]-x[i])*(x[j]-x[i]) + (y[j]-y[i])*(y[j]-y[i]));
                }
            }
            if(y[i] < y[j]){
                    num = sqrt((x[i]-x[j])*(x[i]-x[j]) + (y[j]-y[i])*(y[j]-y[i]));
                }
            if(num > maxlen) maxlen = num;
        }
    }
    printf("%f",maxlen);
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:7:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ^
./Main.c:10:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&x[i]);
         ^
./Main.c:11:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&y[i]);
         ^

Judge Result