Submission #1150643

#	Time	Username	Problem	Language	Result	Execution time	Memory
1150643		davele	Coins (IOI17_coins)	C++20	100 / 100	6 ms	776 KiB

coins

#include "coins.h"
#define pb push_back
#include <bits/stdc++.h>
using namespace std;

std::vector<int> coin_flips(std::vector<int> b, int c) {
    int sumxor = c;
    for (int i=0; i<64; i++) if (b[i]) sumxor^=i;
    vector <int> ret;
    ret.pb(sumxor);
    return ret;
}

int find_coin(std::vector<int> b) {
    int sumxor = 0;
    for (int i=0; i<64; i++) if (b[i]) sumxor^=i;
    return sumxor;
}

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