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QOJ

ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#659749	#8056. Travel 2	ucup-team4992	AC ✓	197ms	3972kb	C++14	1.9kb	2024-10-19 21:47:12	2024-10-19 21:47:13

Judging History

你现在查看的是最新测评结果

[2024-10-19 21:47:13]
评测

测评结果：AC
用时：197ms
内存：3972kb

查看

[2024-10-19 21:47:12]
提交

answer

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

const int N = 2510, M = 10010;
void solve() {
    int tot = 0;
    vector<vector<int>> G(N);
    vector<int> cur(N, 1), fa(N), vis(N);
    int id, d;
    cin >> id >> d;
    int n = id;
    vis[id] = 1;
    int sure = 0;
    auto work = [&]() {
        tot++;
        assert(tot <= 2 * N + 2 * M);
        G[id].resize(d + 1);
        n = max(n, id);
        for (int i = 1; i <= d; i++) {
            int& v = G[id][i];
            if (v) continue;
            cout << "> " << i << '\n';
            cout.flush();
            cin >> v >> d;
            if (!vis[v]) {
                vis[v] = 1;
                fa[v] = id;
                id = v;
                return;
            } else {
                if (fa[id] == v) {
                    for (int j = G[v].size() - 1; j >= 1; j--)
                        if (G[v][j] == id) {
                            cout << "> " << j << '\n';
                            cout.flush();
                            break;
                        }
                    cin >> id >> d;
                } else {
                    id = v;
                    return;
                }
            }
        }
        sure++;
        for (int i = 1; i <= d; i++)
            if (G[id][i] == fa[id]) {
                cout << "> " << i << '\n';
                cout.flush();
                cin >> id >> d;
                return;
            }
    };
    while (sure < n)
        work();
    cout << "! ";
    for (int i = 1; i <= n; i++) {
        for (int j = G[i].size() - 1; j >= 1; j--) {
            int v = G[i][j];
            if (i < v) cout << i << ' ' << v << ' ';
        }
    }
    cout << '\n';
    cout.flush();
    string cr;
    cin >> cr;
}
int main() {
    int T;
    cin >> T;
    while (T--)
        solve();
    return 0;
}

Source code, Language: C++14

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 1ms

memory: 3628kb

input:

output:

> 1
> 1
> 1
> 1
! 1 2 
> 1
> 1
> 1
> 2
> 1
> 2
> 1
> 2
> 1
> 3
> 2
> 2
> 2
> 1
! 1 4 1 3 1 2 2 4

result:

ok correct! (2 test cases)

Test #2:

score: 0

Accepted

time: 197ms

memory: 3692kb

input:

output:

> 1
> 1
> 1
> 2
> 1
> 2
> 2
> 1
> 3
> 2
> 2
> 3
> 1
> 4
> 1
> 4
> 2
> 1
> 5
> 1
> 5
> 2
> 3
> 1
> 6
> 2
> 3
> 3
> 2
> 2
> 3
> 2
> 3
> 3
> 4
> 1
> 7
> 5
> 4
> 3
> 2
> 3
> 3
> 4
> 4
> 3
> 4
> 4
> 5
> 4
> 5
> 4
> 2
> 5
> 6
> 5
> 6
> 6
> 6
> 7
> 7
> 6
> 8
> 5
> 9
> 7
> 4
> 5
> 7
> 6
> 5
> 4
> 6
> 7
> 8
...

result:

ok correct! (1000 test cases)

Test #3:

score: 0

Accepted

time: 143ms

memory: 3672kb

input:

output:

> 1
> 1
> 1
> 2
> 1
> 2
> 1
> 2
> 2
> 1
> 3
> 1
> 3
> 2
> 3
> 1
> 4
> 1
> 4
> 2
> 1
> 5
> 1
> 5
> 2
> 3
> 3
> 2
> 2
> 3
> 4
> 2
> 3
> 3
> 1
> 6
> 2
> 2
> 3
> 1
> 7
> 2
> 3
> 3
> 1
> 8
> 1
> 8
> 2
> 3
> 1
> 9
> 1
> 9
> 2
> 4
> 3
> 4
> 1
> 10
> 4
> 2
> 1
> 11
> 2
> 3
> 3
> 3
> 5
> 4
> 4
> 5
> 6
> 5
> ...

result:

ok correct! (500 test cases)

Test #4:

score: 0

Accepted

time: 152ms

memory: 3596kb

input:

output:

> 1
> 1
> 1
> 2
> 1
> 2
> 1
> 2
> 2
> 1
> 3
> 1
> 3
> 2
> 1
> 4
> 1
> 4
> 2
> 1
> 5
> 1
> 5
> 2
> 1
> 6
> 1
> 6
> 2
> 1
> 7
> 1
> 7
> 2
> 1
> 8
> 1
> 8
> 2
> 1
> 9
> 1
> 9
> 2
> 1
> 10
> 1
> 10
> 2
> 1
> 11
> 2
> 2
> 3
> 1
> 12
> 1
> 12
> 2
> 1
> 13
> 1
> 13
> 2
> 1
> 14
> 1
> 14
> 2
> 1
> 15
> 1
> ...

result:

ok correct! (100 test cases)

Test #5:

score: 0

Accepted

time: 140ms

memory: 3876kb

input:

output:

> 1
> 1
> 1
> 2
> 1
> 2
> 1
> 2
> 2
> 1
> 3
> 1
> 3
> 2
> 1
> 4
> 1
> 4
> 2
> 1
> 5
> 1
> 5
> 2
> 1
> 6
> 1
> 6
> 2
> 1
> 7
> 1
> 7
> 2
> 1
> 8
> 1
> 8
> 2
> 1
> 9
> 1
> 9
> 2
> 1
> 10
> 1
> 10
> 2
> 1
> 11
> 1
> 11
> 2
> 1
> 12
> 1
> 12
> 2
> 1
> 13
> 1
> 13
> 2
> 1
> 14
> 1
> 14
> 2
> 1
> 15
> 1
>...

result:

ok correct! (10 test cases)

Test #6:

score: 0

Accepted

time: 157ms

memory: 3972kb

input:

output:

> 1
> 1
> 1
> 2
> 1
> 2
> 1
> 2
> 2
> 1
> 3
> 1
> 3
> 2
> 1
> 4
> 1
> 4
> 2
> 1
> 5
> 1
> 5
> 2
> 1
> 6
> 1
> 6
> 2
> 1
> 7
> 1
> 7
> 2
> 1
> 8
> 1
> 8
> 2
> 1
> 9
> 2
> 1
> 10
> 1
> 10
> 2
> 1
> 11
> 1
> 11
> 2
> 1
> 12
> 1
> 12
> 2
> 1
> 13
> 1
> 13
> 2
> 1
> 14
> 1
> 14
> 2
> 1
> 15
> 1
> 15
> 2
...

result:

ok correct! (4 test cases)

Test #7:

score: 0

Accepted

time: 115ms

memory: 3748kb

input:

output:

> 1
> 1
> 1
> 2
> 1
> 2
> 1
> 2
> 2
> 1
> 3
> 1
> 3
> 2
> 1
> 4
> 1
> 4
> 2
> 1
> 5
> 1
> 5
> 2
> 3
> 1
> 6
> 1
> 6
> 2
> 1
> 7
> 1
> 7
> 2
> 3
> 3
> 1
> 8
> 1
> 8
> 2
> 1
> 9
> 1
> 9
> 2
> 1
> 10
> 1
> 10
> 2
> 1
> 11
> 1
> 11
> 2
> 1
> 12
> 1
> 12
> 2
> 1
> 13
> 1
> 13
> 2
> 1
> 14
> 1
> 14
> 2
> ...

result:

ok correct! (4 test cases)

Test #8:

score: 0

Accepted

time: 103ms

memory: 3776kb

input:

output:

> 1
> 1
> 1
> 2
> 1
> 2
> 2
> 2
> 3
> 1
> 3
> 2
> 3
> 3
> 3
> 4
> 1
> 4
> 2
> 4
> 3
> 4
> 4
> 4
> 5
> 1
> 5
> 2
> 5
> 3
> 5
> 4
> 5
> 5
> 5
> 6
> 1
> 6
> 2
> 6
> 3
> 6
> 4
> 6
> 5
> 6
> 6
> 6
> 7
> 1
> 7
> 2
> 7
> 3
> 7
> 4
> 7
> 5
> 7
> 6
> 7
> 7
> 7
> 8
> 1
> 8
> 2
> 8
> 3
> 8
> 4
> 8
> 5
> 8
> 6
...

result:

ok correct! (4 test cases)

Test #9:

score: 0

Accepted

time: 70ms

memory: 3768kb

input:

output:

> 1
> 1
> 1
> 2
> 1
> 2
> 2
> 1
> 2
> 2
> 2
> 2
> 3
> 1
> 3
> 2
> 3
> 2
> 4
> 1
> 4
> 2
> 4
> 2
> 5
> 1
> 5
> 2
> 5
> 2
> 6
> 1
> 6
> 2
> 6
> 2
> 7
> 1
> 7
> 2
> 7
> 2
> 8
> 1
> 8
> 2
> 8
> 2
> 9
> 1
> 9
> 2
> 9
> 2
> 10
> 1
> 10
> 2
> 10
> 2
> 11
> 1
> 11
> 2
> 11
> 2
> 12
> 1
> 12
> 2
> 12
> 2
> 1...

result:

ok correct! (4 test cases)

Extra Test:

score: 0

Extra Test Passed