Submission #1080655

#	Time	Username	Problem	Language	Result	Execution time	Memory
1080655		Tob	Coins (IOI17_coins)	C++14	100 / 100	6 ms	1948 KiB

coins

#include <bits/stdc++.h>

#include "coins.h"

#define F first
#define S second
#define all(x) x.begin(), x.end()
#define pb push_back
#define FIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)

using namespace std;

typedef long long ll;
typedef pair <ll, ll> pii;

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

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

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