제출 #1184840

#제출 시각아이디문제언어결과실행 시간메모리
1184840hamzabcCoins (IOI17_coins)C++20
100 / 100
8 ms584 KiB
#include "coins.h" std::vector<int> coin_flips(std::vector<int> b, int c) { std::vector<int> flips(1); int xr = 0; for (int i = 0; i < 64; i++) xr ^= b[i] * i; flips[0] = c ^ xr; return flips; } int find_coin(std::vector<int> b) { int xr = 0; for (int i = 0; i < 64; i++) xr ^= b[i] * i; return xr; }
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