Submission #648019

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
648019	2022-10-05 01:53:48	dutinmeow	Coins (IOI17_coins)	C++17	100 / 100	9 ms	1552 KiB

coins

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#include "coins.h"
#include <vector>
std::vector<int> coin_flips(std::vector<int> b, int c) {
  int cur = c;
  for (int i = 0; i < 64; i++)
    cur ^= b[i] * i;
  return {cur};
}
int find_coin(std::vector<int> b) {
  int cur = 0;
  for (int i = 0; i < 64; i++)
    cur ^= b[i] * i;
  return cur;
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 15 / 15
• Subtask 5: 50 / 50