Submission #1093595

#	Time	Username	Problem	Language	Result	Execution time	Memory
1093595		Irate	Coins (IOI17_coins)	C++17	100 / 100	7 ms	1704 KiB

coins

#include "coins.h"

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

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

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