MAXLN - THE MAX LINES on spoj

question-MAXLN - THE MAX LINES

sol-

#include<stdio.h>

#include<math.h>

int main()

{int t,i;

long long int r;

double s;

scanf("%d",&t);

for(i=1;i<=t;i++)

{

scanf("%lld",&r);

s=(4*r*r)+0.25;

printf("Case %d: %0.2lf",i,s);

printf("\n");

}

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