Submission #697426

#	Time	Username	Problem	Language	Result	Execution time	Memory
697426		tvladm2009	Coins (IOI17_coins)	C++17	100 / 100	11 ms	1568 KiB

coins

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

using ll = long long;

std::vector<int> coin_flips(std::vector<int> b, int cursed) {
  int x = cursed;
  for(int i = 0;i < 64; i++) {
    if(b[i])
      x ^= i;
  }
  return {x};
}

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

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