Submission #1991145

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Source Code Expand

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<stdbool.h>
#include<math.h>
#define inf 1072114514
#define llinf 4154118101919364364
#define mod 1000000007
#define pi 3.1415926535897932384

int imax(int a,int b){if(a>b){return a;}return b;}
int imin(int a,int b){if(a<b){return a;}return b;}
int zt(int a,int b){return imax(a,b)-imin(a,b);}

int calc(int a1,int b1,int a2,int b2){
    int x,y;
    x=zt(a1,a2);x*=x;
    y=zt(b1,b2);y*=y;
    return x+y;
}

int main(void){
    int i,j,n,m,t,k,x[262144],y[262144],r=0,l;
    double d;
    char s[262144];
    scanf("%d",&n);
    //l=strlen(s);
    for(i=1;i<=n;i++){
        scanf("%d%d",&x[i],&y[i]);
    }
    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++){
            //printf("<%d %d %d %d %d>\n",x[i],y[i],x[j],y[j],r);
            r=imax(r,calc(x[i],y[i],x[j],y[j]));
        }
    }
    d=r;
    printf("%.12lf\n",sqrt(d));
    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:26:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ^
./Main.c:29:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&x[i],&y[i]);
         ^

Judge Result