제출 #594825

#제출 시각아이디문제언어결과실행 시간메모리
594825shezittCoins (IOI17_coins)C++14
100 / 100
12 ms1564 KiB
#include "coins.h"
#include <bits/stdc++.h>

using namespace std;

vector<int> coin_flips(vector<int> b, int c) {
	vector<int> flips;
	int X = c;
	for(int i=0; i<(int)b.size(); ++i){
		X ^= (b[i] ? i : 0);
	}
	flips.push_back(X);
	return flips;
}

int find_coin(vector<int> b) {
	int ans = 0;
	for(int i=0; i<(int)b.size(); ++i){
		ans ^= (b[i] ? i : 0);
	}
	return ans;
}
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