제출 #1184889

#제출 시각아이디문제언어결과실행 시간메모리
1184889petezaCoins (IOI17_coins)C++20
100 / 100
6 ms584 KiB
#include "coins.h" std::vector<int> coin_flips(std::vector<int> b, int c) { std::vector<int> flips(1); int res = 0; for(int i=0;i<b.size();i++) if(b[i]) res ^= i; flips[0] = (res ^ c); return flips; } int find_coin(std::vector<int> b) { int res = 0; for(int i=0;i<b.size();i++) if(b[i]) res ^= i; return res; }
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