Submission #165633

#	Time	Username	Problem	Language	Result	Execution time	Memory
165633		eriksuenderhauf	Coins (IOI17_coins)	C++11	100 / 100	15 ms	1596 KiB

coins

#include "coins.h"
#define v vector<int>
#define f for(int i=0;i<64;i++)

std::v coin_flips(std::v b,int c) {
	int d=c; f d ^= i*b[i];
	return {d};
}

int find_coin(std::v b) {
	int d = 0; f d ^= i*b[i];
	return d;
}

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