Submission #1357386

#	Time	Username	Problem	Language	Result	Execution time	Memory
1357386		neptunns	Dark Ride (EGOI25_darkride)	C++20	24 / 100	0 ms	500 KiB

Main

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

#define ll long long
#define int long long
#define maxn 500005
#define mi LLONG_MIN
#define ma LLONG_MAX
#define mod 1000000007
#define pb push_back
#define S second
#define F first
int ask(string s) {
    int ans;
    cout << "? " << s << endl;
    cin >> ans;
    return ans;
}
void answer(int a, int b) {
    if (a > b) swap(a, b);
    cout << "! " << a << " " << b << endl;
    exit(0);
}
void solve() {
    int n;
    cin >> n;
    string s(n, '0');
    int a = -1, b = -1;
    for (int i = 0; i < n; i++) {
        s[i] = '1';
        int ans = ask(s);
        if (ans == 1) {
            swap(a, b);
            a = i;
            if (b != -1) {
                answer(a, b);
            }
        }
        s[i] = '0';
    }
}

int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
    // cin >> t;
    while (t--) solve();
}

• 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