View Code of Problem 118

#include <iostream>
#include <cstdio>
using namespace std;
int main(){
    int n,k=1,sum;
    while(cin>>n){
        sum=0;
        if(n<=3)
            cout<<"Case #"<<k++<<": "<<5<<endl;
        else if(n%2==0){
            sum=5+(n-3)*1.5+0.5;
            cout<<"Case #"<<k++<<": "<<sum<<endl;
        }
        else{
            sum=5+(n-3)*1.5;
            cout<<"Case #"<<k++<<": "<<sum<<endl;
        }
    }
    return 0;
}