Submission #995347

#	Time	Username	Problem	Language	Result	Execution time	Memory
995347		Bors	Coins (IOI17_coins)	C++17	100 / 100	8 ms	1812 KiB

coins

#include <bits/stdc++.h>
#include "coins.h"
using namespace std;
#define rep(i,n) for(int i=0; i<n; i++)
typedef vector<int> vi;

vi coin_flips(vi b, int c) {
    vi flips(1);
    int x=c;
    rep(i,64) if(b[i]) x^=i;
   	flips[0]=x;
    return flips;
}

int find_coin(vi b) {
    int x=0;
    rep(i,64) if(b[i]) x^=i;
    return x;
}

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