Submission #3315841

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

long long n;
long long ans;

bool zhi(long long x)
{
    for(long long i=2;i<x;i++)
    {
        if(x%i==0)return false;
    }
    return true;
}

int main()
{
    while(1)
    {
        scanf("%lld",&n);
        if(n==0)break;
        long long last=0;
        for(long long i=1;i*i<=n;i++)
        {
            if(n%i!=0)continue;
            if(zhi(n/i))
                last=max(n/i,last);
            if(zhi(i))
                last=max(i,last);
        }
        printf("%lld\n",last);
    }


    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:20:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&n);
                         ^

Judge Result