Submission #743215

#	Time	Username	Problem	Language	Result	Execution time	Memory
743215		boyliguanhan	Coins (IOI17_coins)	C++17	100 / 100	11 ms	1392 KiB

coins

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

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