제출 #742185

#제출 시각아이디문제언어결과실행 시간메모리
742185sword060Logičari (COCI21_logicari)C++17
10 / 110
1 ms340 KiB
#include <bits/stdc++.h>
using namespace std;
int main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int x; cin>>x;
	if(x%4)cout<<(-1);
	else cout<<(x/2);
	return 0;
}
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