Submission #1215260

#	Time	Username	Problem	Language	Result	Execution time	Memory
1215260		salmon	Coins (IOI17_coins)	C++20	100 / 100	5 ms	584 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);
    
    for(int i = 0; i < 64; i++){
		if(b[i])  c = (c^i);
	}
	flips[0] = c;
    
    return flips;
}

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

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