Submission #660261

#	Time	Username	Problem	Language	Result	Execution time	Memory
660261		Truitadepatates	Coins (IOI17_coins)	C++14	100 / 100	10 ms	1552 KiB

coins

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

#include "coins.h"

vector<int> coin_flips(vector<int> b, int c){
  int ans = 0;
  for (int i = 0; i < 64; i++){
    if (b[i] == 1) ans ^= i;
  }
  ans ^= c;
  vector<int> flip(1);
  flip[0] = ans;
  return flip;
}

int find_coin(vector<int> b){
  int c = 0;
  for (int i = 0; i < 64; i++){
    if (b[i] == 1) c ^= i;
  }
  return c;
}

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