Submission #918718

#	Time	Username	Problem	Language	Result	Execution time	Memory
918718		HasanV11010238	Coins (IOI17_coins)	C++17	0 / 100	8 ms	1692 KiB

coins

#include "coins.h"

std::vector<int> coin_flips(std::vector<int> b, int c) {
    int as = 0;
    for (int i = 0; i <= 63; i++){
        if (b[i]){
            as ^= i;
        }
    }
    return {c^as};
}

int find_coin(std::vector<int> b) {
    int ans = 0;
    for (int i = 0; i <= 63; i++){
        ans ^= i;
    }
    return ans;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 50