제출 #578529

#제출 시각아이디문제언어결과실행 시간메모리
578529zaneyuCoins (IOI17_coins)C++14
100 / 100
11 ms1552 KiB
#include "coins.h"
#define REP(i,n) for(int i=0;i<n;i++)
std::vector<int> coin_flips(std::vector<int> b, int c) {
    REP(i,64){
        if(b[i]) c^=i;
    }
    return {c};
}

int find_coin(std::vector<int> b) {
    int a=0;
    REP(i,64) if(b[i]) a^=i;
    return a;
}
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