Submission #345273

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
const int dx[]={0,1,0,-1,1,-1,-1,1};
const int dy[]={-1,0,1,0,1,1,-1,-1};
const int INF = 1<<30;
const double EPS = 1e-15;
#define PB push_back
#define mk make_pair
#define fi first
#define se second
#define ll long long
#define reps(i,j,k) for(int i = (j); i < (k); i++)
#define rep(i,j) reps(i,0,j)
#define MOD 1000000007
typedef pair<int,int> Pii;
typedef pair<int,Pii> P;
typedef vector<int> vi;
typedef vector<vi> vvi;
int main(){
	int N;
	vi a,b;
	scanf("%d",&N);
	rep(i,N){
		int x;
		scanf("%d",&x);
		a.PB(x);
	}
	sort(a.begin(),a.end());
	int cnt = 0;
	rep(i,a.size()){
		if(a[i] % 2 == 0){
			if(binary_search(a.begin(),a.end(),a[i]/2))cnt++;
		}
	}
	printf("%d\n",N-cnt);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:22:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
./Main.cpp:25:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result