제출 #390243

#제출 시각아이디문제언어결과실행 시간메모리
390243IwanttobreakfreeCoins (IOI17_coins)C++17
100 / 100
15 ms1636 KiB
#include "coins.h"
#include <vector>
using namespace std;
vector<int> coin_flips(vector<int> b, int c) {
	vector<int> flips;
	int flip=0;
	for(int i=0;i<64;i++)if(b[i])flip^=i;
	flip^=c;
	flips.push_back(flip);
    return flips;
}
 
int find_coin(vector<int> b) {
	int sol=0;
	for(int i=0;i<64;i++){
		if(b[i])sol^=i;
	}
	return sol;
}
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