Submission #6502054

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Source Code Expand

#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <cmath>
using namespace std;
#define ll long long
ll n,s;
ll ans;
bool ok;
void mj(ll b)
{
	ll tem=n;
	ll sum=0;
	while(tem)
	{
		sum+=tem%b;
		tem/=b;
	}
	if(sum==s)
	{
		ans=b;
		ok=true;
	}
	return ;
}
void work()
{
	for(ll i=2; i*i<=n; i++)
	{
		ll b=i;
		mj(b);
		if(ok)
			return ;
	}
	ll del=n-s;
	for(ll i=sqrt(n)+1;i<=n;i++)
	{
		ll b=i-1;
		if(del%b==0)
		{
			ok=true;
			ans=i;
			return ;
		}
	}
}
int main()
{
	scanf("%lld%lld",&n,&s);
	work();
	if(ok)
	{
		printf("%lld\n",ans);
	}
	else
	{
		printf("-1\n");
	}
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:49:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld",&n,&s);
                         ^

Judge Result