Submission #918720

#	Time	Username	Problem	Language	Result	Execution time	Memory
918720		HasanV11010238	Coins (IOI17_coins)	C++17	100 / 100	8 ms	1700 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++){
        if (b[i]){
            ans ^= i;
        }
    }
    return ans;
}

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