Submission #3422736

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Source Code Expand

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

using ll = long long int;
using vi = vector<int>;
using vll = vector<long long int>;
using vii = vector<vi>;
using pii = pair<int, int>;

#define REP(i,n) for(int (i)=0;(i)<(n);(i)++)
#define FOR(i, a, b) for(int (i) = a; (i) < (b);(i)++)
#define MAX(a, b) ((a > b) ? a : b)
#define MIN(a, b) ((a > b) ? b : a)

int gcd(int a,int b){return b?gcd(b,a%b):a;}
int dx[4]={1,0,-1,0};
int dy[4]={0,1,0,-1};

const int QUA = 1e9 + 7;

int main(){
  ll n, m;
  scanf("%lld%lld", &n, &m);
  ll ans;
  if(2 * n >= m){
    ans = m / 2;
  }
  else{
    ans = n + (m - 2 * n) / 4;
  }
  printf("%lld\n", ans);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:23:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld", &n, &m);
                            ^

Judge Result