Submission #3452592

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
bool judge(int x)
{
	for(int i=2;i<=sqrt(x);i++)
		if(x%i==0) return 0;
	return 1;
}
int main() 
{
	freopen("a.in","r",stdin);
	int n;
	while(cin>>n)
	{
		if(n==0) break;
		for(int i=n;i>=1;i--)
			if(n%i==0)
				if(judge(i))	
				{cout<<i<<endl;break;}
	}
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:11:27: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  freopen("a.in","r",stdin);
                           ^

Judge Result