Submission #1228795

#	Time	Username	Problem	Language	Result	Execution time	Memory
1228795		PlayVoltz	Coins (IOI17_coins)	C++20	100 / 100	10 ms	632 KiB

coins

#include <bits/stdc++.h>
using namespace std;

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

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

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