Submission #649599

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
649599	2022-10-11 03:21:05	Hydrolyzed	Coins (IOI17_coins)	C++14	100 / 100	12 ms	1576 KiB

coins

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