Submission #835062

#	Time	Username	Problem	Language	Result	Execution time	Memory
835062		josiftepe	Coins (IOI17_coins)	C++14	100 / 100	8 ms	1552 KiB

coins

#include "coins.h"
#include <vector>
std::vector<int> coin_flips(std::vector<int> b, int c) {
    int xor_all = 0;
    for(int i = 0; i < (int) b.size(); i++) {
        if(b[i]) {
            xor_all ^= i;
        }
    }
    std::vector<int> v = {c ^ xor_all};
    return v;
}

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

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