Submission #317907

#	Time	Username	Problem	Language	Result	Execution time	Memory
317907		spatarel	Coins (IOI17_coins)	C++17	100 / 100	13 ms	2036 KiB

coins

#include "coins.h"

std::vector<int> coin_flips(std::vector<int> b, int c) {
  std::vector<int> flips;
  int x = find_coin(b);
  flips.push_back(x ^ c);
  return flips;
}

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

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