Submission #1115690

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Source Code Expand

#include <bits/stdc++.h>
#define N 100006
#define inf 100000007
using namespace std;
long long n,m,tmp,ans;
inline long long read()
{
	long long x=0,c=getchar();while(c<48)c=getchar();
	while(c>47)x=x*10+c-48,c=getchar();return x;
}
void print(long long x)
{
	if(x>9LL)print(x/10LL);putchar(x%10LL+48LL);
}
int main()
{
	n=read();m=read();
	tmp=2*n;
	if(m>=tmp)ans=n;else tmp=m,ans=m/2;
	print(ans+(m-tmp)/4);
}

Submission Info

Judge Result