Submission #586085

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
586085	2022-06-29 20:18:38	JovanB	Zagrade (COI20_zagrade)	C++17	100 / 100	826 ms	1220 KiB

zagrade

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
const int N = 100000;
int val[N+5];
int main(){
    ios_base::sync_with_stdio(false), cin.tie(0);
    cout.precision(10);
    cout << fixed;
    int n, qrs;
    cin >> n >> qrs;
    stack <int> st;
    for(int i=1; i<=n; i++){
        if(st.size()){
            cout << "? " << st.top() << " " << i << endl;
            int x;
            cin >> x;
            if(x){
                val[st.top()] = 1;
                st.pop();
            }
            else st.push(i);
        }
        else st.push(i);
 
 
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• Subtask 1: 14 / 14
• Subtask 2: 7 / 7
• Subtask 3: 57 / 57
• Subtask 4: 22 / 22