Submission #1115009

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Source Code Expand

#include <cstdio>
#include <algorithm>
#include <cstring>
using namespace std;
long long s,c,ans;
int main(){
	while(~scanf("%lld%lld",&s,&c)){
	    ans=0;
		if(s*2<=c){
			ans+=s;
	        ans+=(c-2*s)/4;
	    }else ans+=c/2;
	    printf("%lld\n",ans);
	}return 0;
} 

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