Submission #675416

#	Time	Username	Problem	Language	Result	Execution time	Memory
675416		m23022002	Coins (IOI17_coins)	C++14	100 / 100	11 ms	1408 KiB

coins

#include "coins.h"
#include <vector>
using namespace std;
 
vector<int> coin_flips(vector<int> b, int c) {
	int x = 0;
  for(int i=0;i<=63;++i) if(b[i] == 1) x = x ^ i;
  x = x ^ c;
  vector<int>ans(1);
  ans[0] = x;
  return ans;
}
 
int find_coin(vector<int> b) {
	int ans = 0;
  for(int i=0;i<64;++i) if(b[i] == 1) ans = ans ^ i;
  return ans;
}

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