Submission #1121741

#	Time	Username	Problem	Language	Result	Execution time	Memory
1121741		yusufhocaoglu	Coins (IOI17_coins)	C++17	0 / 100	8 ms	1676 KiB

coins

#include <coins.h>
#include <bits/stdc++.h>
using namespace std;

mt19937 rng(chrono::steady_clock().now().time_since_epoch().count());

vector<int> coin_flips(vector<int> b,int c) {
    int xr = 0;
    for (int i = 0;i<63;i++) if (b[i])xr^=i;
    b[xr^c] = !b[xr^c];
    return b;
}

int find_coin(vector<int> b) {
    int xr = 0;
    for (int i = 0;i<63;i++) if (b[i]) xr^=i;
    return xr;
}

/*int main() {
    vector<int> a(64);
    for (int i = 0;i<63;i++) a[i]=rng()%2;
    a = coin_flips(a,rng()%64);
    cout<<find_coin(a)<<endl;
    return 0;
}*/

• Subtask 1: 0 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 50