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Submission #1005713

# Submission time Handle Problem Language Result Execution time Memory
1005713 2024-06-22T21:49:34 Z SuPythony Mađioničar (COI22_madionicar) C++17
0 / 100
 1109 ms 416 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main() {
    int n; cin>>n;
    int ans=1;
    for (int i=1; i<n; i++) {
        cout<<"? "<<i<<" "<<i+1<<endl;
        cout.flush();
        int a; cin>>a;
        if (a) {
            ans=max(ans,2);
            int l=i,r=i+1;
            while (true) {
                l--; r++;
                if (l<1||r>n) break;
                cout<<"? "<<l<<" "<<r<<endl;
                cout.flush();
                cin>>a;
                if (a) {
                    ans=max(ans,r-l+1);
                } else break;
            }
        }
    }
    for (int i=1; i<n-1; i++) {
        cout<<"? "<<i<<" "<<i+2<<endl;
        cout.flush();
        int a; cin>>a;
        if (a) {
            ans=max(ans,3);
            int l=i,r=i+2;
            while (true) {
                l--; r++;
                if (l<1||r>n) break;
                cout<<"? "<<l<<" "<<r<<endl;
                cout.flush();
                cin>>a;
                if (a) {
                    ans=max(ans,r-l+1);
                } else break;
            }
        }
    }
    cout<<"! "<<ans<<endl;
    cout.flush();
    return 0;
}

Subtask #1
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 165 ms 344 KB Output is correct
2 Correct 82 ms 344 KB Output is correct
3 Correct 88 ms 344 KB Output is correct
4 Correct 888 ms 344 KB Output is correct
5 Correct 548 ms 344 KB Output is correct
6 Correct 329 ms 344 KB Output is correct
7 Runtime error 1033 ms 408 KB Execution killed with signal 13
8 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 165 ms 344 KB Output is correct
2 Correct 82 ms 344 KB Output is correct
3 Correct 88 ms 344 KB Output is correct
4 Correct 888 ms 344 KB Output is correct
5 Correct 548 ms 344 KB Output is correct
6 Correct 329 ms 344 KB Output is correct
7 Runtime error 1033 ms 408 KB Execution killed with signal 13
8 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Runtime error 1109 ms 416 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #4
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 165 ms 344 KB Output is correct
2 Correct 82 ms 344 KB Output is correct
3 Correct 88 ms 344 KB Output is correct
4 Correct 888 ms 344 KB Output is correct
5 Correct 548 ms 344 KB Output is correct
6 Correct 329 ms 344 KB Output is correct
7 Runtime error 1033 ms 408 KB Execution killed with signal 13
8 Halted 0 ms 0 KB -