Submission #1140995

#	Time	Username	Problem	Language	Result	Execution time	Memory
1140995		codexistent	Coins (IOI17_coins)	C++20	100 / 100	9 ms	740 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define FOR(__i, __a, __b) for(ll __i = __a; __i <= __b; __i++)

vector<int> coin_flips(vector<int> b, int c) {
    ll r = 0;
    FOR(i, 0, 63){
        if(b[i]) r ^= i;
    }

    vector<int> rv;
    rv.push_back(r ^ c);
    return rv;
}

int find_coin(vector<int> b) {
    ll r = 0;
    FOR(i, 0, 63){
        if(b[i]) r ^= i;
    }
    return r;
}

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