Submission #165634

#	Time	Username	Problem	Language	Result	Execution time	Memory
165634		eriksuenderhauf	Coins (IOI17_coins)	C++11	100 / 100	34 ms	1504 KiB

coins

#include "coins.h"
#define v std::vector<x>
#define f for(x i=0;i<64;i++)
#define x int
v coin_flips(v b,x c) {
	x d=c;f d^=i*b[i];
	return{d};
}
x find_coin(v b) {
	x 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