제출 #864229

#제출 시각아이디문제언어결과실행 시간메모리
864229abcvuitunggioCoins (IOI17_coins)C++17
100 / 100
8 ms1688 KiB
#include "coins.h"
#include <vector>
using namespace std;
vector<int> coin_flips(vector<int> b, int c) {
    for (int i=0;i<64;i++)
        c^=b[i]*i;
    return {c};
}
int find_coin(vector<int> b) {
    return coin_flips(b,0)[0];
}
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