Submission #1361157

#	Time	Username	Problem	Language	Result	Execution time	Memory
1361157		uranhishig	Dark Ride (EGOI25_darkride)	C++20	24 / 100	1 ms	480 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long


int ask(string s) {
    int ans;
    cout << "? " << s << endl;
    cin >> ans;
    return ans;
}


void answer(int a, int b) {
    cout << "! " << min(a, b) << " " << max(a, b) << endl;
}

void solve() {
    int n;
    cin >> n;
    // if (ask("110") == 2) {
    //     answer(0, 1);
    //     return;
    // }
    // if (ask("101") == 2) {
    //     answer(0, 2);
    //     return;
    // }
    // if (ask("011") == 2) {
    //     answer(1, 2);
    //     return;
    // }
    int ans1 = -1, ans2 = -1;
    for (int i = 0; i < n; i++) {
        string s(n, '1');
        s[i] = '0';
        int x = ask(s);
        if(x == 1 and ans1 == -1) ans1 = i;
        if(x == 1 and ans1 != -1) ans2 = i;
    }
    answer(min(ans1, ans2), max(ans1, ans2));
}

signed main() {
    solve();
    return 0;
}

• Subtask 1: 0 / 0
• Subtask 2: 9 / 9
• Subtask 3: 15 / 15
• Subtask 4: 0 / 17
• Subtask 5: 0 / 16
• Subtask 6: 0 / 14
• Subtask 7: 0 / 29