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QOJ

ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#462649	#8056. Travel 2	Saanteye	AC ✓	255ms	5324kb	C++20	1.6kb	2024-07-03 23:06:57	2024-07-03 23:06:58

Judging History

你现在查看的是最新测评结果

[2024-07-03 23:06:58]
评测

测评结果：AC
用时：255ms
内存：5324kb

查看

[2024-07-03 23:06:57]
提交

answer

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

// #define int long long
using ll = long long;
typedef pair<int,int> pii;
const int mod = 998244353;

pii ask(int x) {
    cout << "> " << x << endl;
    int v, e;
    cin >> v >> e;
    return {v, e};
}

void solve() {
    int u, n; cin >> u >> n;
    map<int,int> iter, cap, fa, fae;
    map<int, map<int, int>> G;
    iter[u] = 1;
    cap[u] = n;
    fa[u] = u;
    fae[u] = -1;

    set<pii> edge;

    while (true) {
        if (iter[u] > cap[u]) {
            if (fa[u] == u) break;
            pii ret = ask(fae[u]);
            auto [v, e] = ret;
            u = v;
        } else {
            pii ret = ask(iter[u]);
            auto [v, e] = ret;
            edge.insert({min(u, v), max(u, v)});
            G[u][v] = iter[u];
            if (!cap.count(v)) {
                iter[v] = 1;
                cap[v] = e;
                fa[v] = u;
                fae[v] = -1;
            } else if (v == fa[u]){
                fae[u] = iter[u];
                iter[u]++;
                ask(G[v][u]);
                continue;
            }
            // cout << u << ' ';
            // cout << iter[u] << "->";
            iter[u]++;
            // cout << iter[u] << '\n';
            u = v;
        }
        
    }

    cout << "!";
    for (auto [x, y] : edge) cout << ' ' << x << ' ' << y;
    cout << endl;
}

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

    return 0;
}

Source code, Language: C++20

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 0ms

memory: 3516kb

input:

output:

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

result:

ok correct! (2 test cases)

Test #2:

score: 0

Accepted

time: 174ms

memory: 3868kb

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: 183ms

memory: 3644kb

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: 206ms

memory: 3948kb

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: 208ms

memory: 4408kb

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: 195ms

memory: 5324kb

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: 255ms

memory: 5056kb

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: 136ms

memory: 5092kb

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: 93ms

memory: 5264kb

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