제출 #650234

#제출 시각아이디문제언어결과실행 시간메모리
650234PoonYaPatCoins (IOI17_coins)C++14
100 / 100
11 ms1556 KiB
#include "coins.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> coin_flips(vector<int> b, int c) {
    vector<int> ans;
    int s=0;
    for (int i=0; i<64; ++i) if (b[i]) s^=i;
    s^=c;
    ans.push_back(s);
    return ans;
}

int find_coin(vector<int> b) {
    int ans=0;
    for (int i=0; i<64; ++i) if (b[i]==1) ans^=i;
    return ans;
}
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