Submission #357706

#	Time	Username	Problem	Language	Result	Execution time	Memory
357706		benedict0724	Colors (BOI20_colors)	C++17	9 / 100	2 ms	384 KiB

Colors

#include <iostream>

using namespace std;

int main()
{
    ios::sync_with_stdio(false);cin.tie(NULL);

    int n;
    cin >> n;
    cout << "? 1" << endl;
    int ans;
    cin >> ans;
    for(int i=2;i<=n;i++){
        if(i%2 == 0) cout << "? " << n - i/2 + 1 << endl;
        else cout << "? " << i/2 + 1 << endl;

        cin >> ans;
        if(ans == 0){
            cout << "= " << n - i + 2;
            return 0;
        }
    }
    cout << "= 1";
}

• Subtask 1: 9 / 9
• Subtask 2: 0 / 13
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 33