제출 #1186650

#제출 시각아이디문제언어결과실행 시간메모리
1186650HydrolyzedCoins (IOI17_coins)C++20
100 / 100
5 ms584 KiB
#include "coins.h" #include <vector> std::vector<int> coin_flips(std::vector<int> b, int c) { int sum_xor = 0; for(int i=0; i<64; ++i) { if(b[i] == 0) { continue; } sum_xor ^= i; } int flipping_pos = sum_xor ^ c; return { flipping_pos }; } int find_coin(std::vector<int> b) { int sum_xor = 0; for(int i=0; i<64; ++i) { if(b[i] == 0) { continue; } sum_xor ^= i; } return sum_xor; }
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