제출 #1219246

#제출 시각아이디문제언어결과실행 시간메모리
1219246NintsiChkhaidzeCoins (IOI17_coins)C++17
0 / 100
2 ms580 KiB
#include "coins.h" using namespace std; // #define int long long // #define ff first // #define ss second // #define pb push_back int t; const int N = 1e6 + 6; std::vector<int> coin_flips(std::vector<int> b, int c) { std::vector<int> flips; int num = 0; for (int i = 0; i <= 63; i++){ num ^= (b[i] * i); } for (int i = 0; i < 63; i++){ if ((num ^ i) == c){ flips.push_back(i); break; } } return flips; } int find_coin(std::vector<int> b) { int num = 0; for (int i = 0; i <= 63; i++){ num ^= (b[i] * i); } return num; }
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