Submission #998421

#	Time	Username	Problem	Language	Result	Execution time	Memory
998421		Hacv16	Coins (IOI17_coins)	C++17	100 / 100	7 ms	1948 KiB

coins

#include <bits/stdc++.h>
#include "coins.h"

using namespace std;

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

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

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