Submission #1141524

#	Time	Username	Problem	Language	Result	Execution time	Memory
1141524		1anh6	Coins (IOI17_coins)	C++20	100 / 100	9 ms	584 KiB

coins

#include "coins.h"

std::vector<int> coin_flips(std::vector<int> b, int c) {
    std::vector<int> flips;
    int xd = c;
    for(int i = 0; i < 64; i++)
        if(b[i])
            xd ^= i;
    flips.push_back(xd);
    return flips;
}

int find_coin(std::vector<int> b) {
    int r = 0;
    for(int i = 0; i < 64; i++)
        if(b[i])
            r ^= i;
    return r;
}

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