View Code of Problem 118

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

int main(){
        int i,n,k=1;
        float sum;
        while(~scanf("%d",&n)){
        	sum=0.0;
        	if(n<=3) sum=5.0;
        	else if(n%2!=0) sum=5+(n-3)*1.5;
        	else sum=5.5+(n-3)*1.5;
        	
        	printf("Case #%d: %.0f\n",k++,sum);
		}
    return 0; 
     
}