Submission #743201

#	Time	Username	Problem	Language	Result	Execution time	Memory
743201		boyliguanhan	Coins (IOI17_coins)	C++17	100 / 100	9 ms	1568 KiB

coins

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

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