제출 #831107

#제출 시각아이디문제언어결과실행 시간메모리
831107PanosPaskCoins (IOI17_coins)C++14
100 / 100
11 ms1548 KiB
#include "coins.h" std::vector<int> coin_flips(std::vector<int> b, int c) { std::vector<int> flips(1); int N = 64; int xorsum = 0; for (int i = 0; i < N; i++) { if (b[i]) xorsum = xorsum ^ i; } flips[0] = xorsum ^ c; return flips; } int find_coin(std::vector<int> b) { int xorsum = 0; int N=64; for (int i = 0; i < N; i++) if (b[i]) xorsum = xorsum ^ i; return xorsum; }
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