Submission #1032459

#	Time	Username	Problem	Language	Result	Execution time	Memory
1032459		ArthuroWich	Coins (IOI17_coins)	C++17	100 / 100	7 ms	1712 KiB

coins

#include "coins.h"
#include<bits/stdc++.h>
using namespace std;
vector<int> coin_flips(vector<int> b, int c) {
    vector<int> flips(1);
    int v = c;
    for (int i = 0; i < 64; i++) {
        v ^= i*b[i];
    }
    flips[0] = v;
    return flips;
}

int find_coin(vector<int> b) {
    int v = 0;
    for (int i = 0; i < 64; i++) {
        v ^= i*b[i];
    }
    return v;
}

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