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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#713858#9570. Binary Treeucup-team1196#AC ✓253ms19536kbC++235.4kb2024-11-05 20:43:562024-11-05 20:43:57

Judging History

你现在查看的是最新测评结果

  • [2024-11-05 20:43:57]
  • 评测
  • 测评结果:AC
  • 用时:253ms
  • 内存:19536kb
  • [2024-11-05 20:43:56]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

#define int long long

// std::mt19937_64 mrand(std::chrono::steady_clock().now().time_since_epoch().count());
std::mt19937_64 mrand(0);
int rnd(int l, int r) {
    return mrand() % (r - l + 1) + l;
}

int tot = 0;
struct Interactor {
    int n, s;
    std::queue<int> in;
    std::vector<int> dis;
    Interactor() {
        // n = rnd(2, 7);
        // s = rnd(1, n);
        // in.push(n);
        // dis.assign(n + 1, 1E18);

        // std::vector<std::vector<int>> adj(n + 1), son(n + 1);
        // std::vector<int> d(n + 1);

        // for (int i = 2; i <= n; i++) {
        //     int x = rnd(1, i - 1);
        //     while (d[x] >= 2) {
        //         x = rnd(1, i - 1);
        //     }
        //     adj[x].push_back(i);
        //     adj[i].push_back(x);
        //     son[x].push_back(i);
        //     d[x]++;
        // }

        // std::cout << "!!!" << n << " " << s << std::endl;
        // for (int i = 1; i <= n; i++) {
        //     int x = 0, y = 0;
        //     if (son[i].size() >= 1) {
        //         x = son[i][0];
        //     }
        //     if (son[i].size() >= 2) {
        //         y = son[i][1];
        //     }

        //     in.push(x);
        //     in.push(y);
        //     std::cerr << x << " " << y << std::endl;
        // }

        // dis[s] = 0;
        // std::queue<int> q;
        // q.push(s);
        // while (q.size()) {
        //     auto x = q.front();
        //     q.pop();
        //     for (auto y : adj[x]) {
        //         if (dis[y] > dis[x] + 1) {
        //             dis[y] = dis[x] + 1;
        //             q.push(y);

        //         }
        //     }
        // }
    }
    // int read() {
    //     int x = in.front();
    //     in.pop();
    //     return x;
    // }

    // int query(int u, int v) {
    //     tot--;
    //     assert(tot >= 0);
    //     std::cerr << "query " << u << " " << v << " " << dis[u] << " " << dis[v] << std::endl;
    //     if (dis[u] < dis[v]) {
    //         return 0;
    //     } else if (dis[u] > dis[v]) {
    //         return 2;
    //     } else {
    //         return 1;
    //     }
    // }

    // void answer(int x) {
    //     assert(x == s);
    // }

    int query(int u, int v) {
        tot--;
        assert(tot >= 0);
        std::cout << "? " << u << " " << v << std::endl;
        int x;
        std::cin >> x;
        return x;
    }

    int read() {
        int x;
        std::cin >> x;
        return x;
    }
    void answer(int x) {
        std::cout << "! " << x << std::endl;
    }
};





void solve() {
    Interactor it;
    int n;
    n = it.read();
    tot = std::__lg(n);
    std::vector<std::vector<int>> adj(n + 1);
    for (int i = 1; i <= n; i++) {
        int ls, rs;
        ls = it.read();
        rs = it.read();
        if (ls) {
            adj[i].push_back(ls);
            adj[ls].push_back(i);
        }
        if (rs) {
            adj[i].push_back(rs);
            adj[rs].push_back(i);
        }
    }

    std::vector<int> vis(n + 1), sz(n + 1), f(n + 1);
    f[0] = 1E9;
    auto work = [&](auto self, int x, int SZ) -> void {
        if (SZ == 1) {
            it.answer(x);
            return;
        }
        auto p = 0;
        auto dfs = [&](auto self, int x, int fx) -> void {
            sz[x] = 1;
            f[x] = 0;
            for (auto y : adj[x]) {
                if (y == fx || vis[y] == 1) continue;
                self(self, y, x);
                sz[x] += sz[y];
                f[x] = std::max(f[x], sz[y]);
            }
            f[x] = std::max(f[x], SZ - sz[x]);
            if (f[x] < f[p]) {
                p = x;
            }

        };
        dfs(dfs, x, 0);
        dfs(dfs, p, 0);

        // std::cerr << "!!!" << p << std::endl;
        std::vector<int> vec;
        for (auto y : adj[p]) {
            if (vis[y] == 0) {
                vec.push_back(y);
            }
        }
        std::sort(vec.begin(), vec.end(), [&](auto a, auto b) {
            return sz[a] > sz[b];
        });
        if (vec.size() == 1) {
            int a = p, b = vec[0];
            int v = it.query(a, b);
            if (v == 0) {
                it.answer(a);
            } else if (v == 2) {
                it.answer(b);
            } else {
                assert(0);
            }
        } else if (vec.size() == 2) {
            int a = vec[0], b = vec[1];
            int v = it.query(a, b);
            vis[p] = 1;
            if (v == 0) {
                self(self, a, sz[a]);
            } else if (v == 2) {
                self(self, b, sz[b]);
            } else {
                it.answer(p);
            }
        } else if (vec.size() == 3) {
            int a = vec[0], b = vec[1];
            int v = it.query(a, b);

            if (v == 0) {
                vis[p] = 1;
                self(self, a, sz[a]);
            } else if (v == 2) {

                vis[p] = 1;
                self(self, b, sz[b]);
            } else {
                vis[a] = vis[b] = 1;
                self(self, vec[2], sz[vec[2]] + 1);
            }
        }

    };
    work(work, 1, n);
}

signed main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);

    int t = 1;
    std::cin >> t;

    while (t --) {
        solve();
    }
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3568kb

input:

2
5
0 0
1 5
2 4
0 0
0 0
1
0
2
0 2
0 0
2

output:

? 3 1
? 2 5
! 2
? 2 1
! 1

result:

ok OK (2 test cases)

Test #2:

score: 0
Accepted
time: 86ms
memory: 4448kb

input:

5555
8
2 0
8 6
0 0
3 0
0 0
7 0
0 0
5 4
0
0
2
8
0 0
1 4
2 0
0 0
7 8
0 0
3 0
6 0
0
1
0
8
5 8
0 0
1 7
0 0
0 0
4 2
0 0
6 0
0
0
2
5
4 5
3 1
0 0
0 0
0 0
0
2
8
0 0
0 0
5 6
0 0
1 4
2 0
3 8
0 0
0
0
5
3 0
5 1
0 0
0 0
4 0
0
2
5
5 0
0 0
0 0
3 0
2 4
0
0
3
3 0
1 0
0 0
2
2
2 0
0 0
0
3
2 3
0 0
0 0
2
10
2 8
9 7
0 0
...

output:

? 2 4
? 2 7
? 1 2
! 2
? 3 5
? 1 4
? 2 3
! 2
? 1 6
? 1 7
? 5 1
! 1
? 2 4
? 3 2
! 2
? 5 6
? 1 4
! 1
? 5 1
? 4 5
! 5
? 4 1
? 3 4
! 3
? 3 2
! 2
? 2 1
! 2
? 2 3
! 3
? 2 6
? 1 9
? 10 9
! 9
? 2 1
! 2
? 5 9
? 4 8
? 3 5
! 3
? 5 8
? 7 1
? 3 5
! 3
? 9 3
? 1 7
? 2 9
! 2
? 2 1
! 1
? 4 3
? 1 7
! 7
? 4 9
? 2 3
? 4...

result:

ok OK (5555 test cases)

Test #3:

score: 0
Accepted
time: 51ms
memory: 3764kb

input:

600
2
2 0
0 0
2
3
2 0
3 0
0 0
2
4
4 0
1 0
0 0
3 0
0
0
5
4 0
0 0
1 0
2 0
3 0
2
0
6
4 0
6 0
2 0
5 0
0 0
1 0
0
0
7
7 0
3 0
6 0
5 0
2 0
1 0
0 0
0
1
8
7 0
0 0
2 0
8 0
1 0
5 0
3 0
6 0
0
0
0
9
7 0
4 0
2 0
1 0
0 0
8 0
9 0
5 0
6 0
2
0
2
10
9 0
6 0
8 0
7 0
0 0
10 0
2 0
4 0
5 0
1 0
0
0
2
11
2 0
10 0
6 0
9 0
0 ...

output:

? 2 1
! 1
? 1 3
! 3
? 1 3
? 2 1
! 2
? 4 3
? 5 3
! 5
? 1 2
? 1 5
! 1
? 2 6
? 4 2
! 5
? 1 6
? 7 2
? 1 7
! 1
? 1 9
? 6 5
? 9 6
! 6
? 6 7
? 9 10
? 5 9
! 9
? 2 9
? 8 4
? 9 4
! 4
? 9 2
? 3 12
? 3 9
! 3
? 2 3
? 13 6
? 2 13
! 9
? 4 13
? 1 6
? 4 1
! 1
? 2 14
? 15 8
? 8 13
! 13
? 1 15
? 16 11
? 6 1
? 16 6
! 1...

result:

ok OK (600 test cases)

Test #4:

score: 0
Accepted
time: 129ms
memory: 19536kb

input:

2
99999
21832 0
77205 0
62668 0
58313 0
14640 0
76941 0
62678 0
8464 0
43145 0
26195 0
46140 0
83205 0
40047 0
81645 0
27077 0
92036 0
14236 0
3576 0
15430 0
75654 0
29049 0
62218 0
83318 0
1116 0
77861 0
9755 0
49236 0
70959 0
62295 0
33580 0
88208 0
55840 0
71061 0
24695 0
88831 0
1891 0
57285 0
9...

output:

? 70790 43991
? 36882 98065
? 17626 87676
? 23816 44703
? 44123 980
? 42969 10068
? 81398 27281
? 9070 98746
? 13903 34508
? 25653 70641
? 11149 72092
? 76080 73559
? 98775 52279
? 98440 96117
? 48463 67541
? 98440 48463
! 48463
? 44110 46352
? 63067 47168
? 38328 51576
? 75910 60860
? 42451 28720
?...

result:

ok OK (2 test cases)

Test #5:

score: 0
Accepted
time: 71ms
memory: 12120kb

input:

15
3
0 0
1 0
2 0
1
7
6 0
3 0
5 0
0 0
7 0
4 0
1 0
2
2
15
6 0
5 0
1 0
7 0
14 0
11 0
15 0
12 0
2 0
4 0
9 0
13 0
0 0
8 0
3 0
0
0
0
31
3 0
31 0
17 0
23 0
4 0
13 0
1 0
12 0
6 0
0 0
20 0
26 0
14 0
29 0
8 0
25 0
21 0
19 0
5 0
15 0
18 0
10 0
22 0
7 0
28 0
2 0
24 0
30 0
27 0
9 0
16 0
2
0
0
2
63
15 0
62 0
5 0
...

output:

? 1 3
! 2
? 5 1
? 1 4
! 4
? 6 9
? 7 3
? 7 10
! 7
? 13 29
? 17 18
? 1 24
? 1 17
! 17
? 37 8
? 30 14
? 55 56
? 22 19
? 19 56
! 31
? 36 89
? 96 110
? 20 79
? 62 106
? 82 86
? 61 82
! 82
? 64 233
? 148 51
? 1 176
? 126 78
? 251 252
? 200 224
? 176 200
! 176
? 439 48
? 144 457
? 376 142
? 193 427
? 173 2...

result:

ok OK (15 test cases)

Test #6:

score: 0
Accepted
time: 73ms
memory: 11500kb

input:

16
2
2 0
0 0
2
4
4 0
3 0
1 0
0 0
0
0
8
5 0
0 0
4 0
8 0
2 0
3 0
6 0
1 0
0
0
2
16
2 0
5 0
1 0
11 0
13 0
14 0
8 0
6 0
0 0
4 0
3 0
7 0
15 0
10 0
16 0
9 0
0
0
0
0
32
15 0
0 0
14 0
18 0
26 0
17 0
25 0
27 0
6 0
9 0
4 0
13 0
23 0
30 0
32 0
12 0
11 0
31 0
28 0
3 0
19 0
10 0
22 0
7 0
5 0
29 0
24 0
20 0
21 0
1...

output:

? 2 1
! 1
? 1 2
? 4 1
! 4
? 8 3
? 1 2
? 8 1
! 1
? 3 4
? 5 15
? 2 3
? 5 2
! 5
? 12 30
? 17 4
? 10 23
? 9 17
? 10 9
! 9
? 60 3
? 41 49
? 37 31
? 40 35
? 62 37
? 40 62
! 40
? 57 124
? 48 58
? 69 39
? 31 37
? 76 125
? 14 31
? 76 14
! 76
? 90 113
? 91 222
? 57 148
? 68 231
? 255 112
? 135 81
? 251 255
? ...

result:

ok OK (16 test cases)

Test #7:

score: 0
Accepted
time: 62ms
memory: 11928kb

input:

15
2
2 0
0 0
2
6
5 0
1 0
6 0
2 0
3 0
0 0
0
2
14
12 0
0 0
11 0
5 0
7 0
1 0
8 0
10 0
14 0
13 0
6 0
9 0
2 0
4 0
0
0
1
30
10 0
29 0
23 0
28 0
9 0
14 0
2 0
30 0
19 0
0 0
15 0
1 0
22 0
8 0
18 0
27 0
7 0
24 0
26 0
3 0
20 0
25 0
6 0
17 0
4 0
12 0
21 0
16 0
13 0
5 0
0
0
0
2
62
24 0
22 0
18 0
17 0
49 0
53 0
3...

output:

? 2 1
! 1
? 1 3
? 1 4
! 4
? 14 5
? 12 6
? 14 12
! 9
? 21 16
? 8 5
? 3 6
? 3 21
! 21
? 60 10
? 9 2
? 36 34
? 24 47
? 47 9
! 52
? 70 84
? 90 37
? 75 99
? 3 105
? 42 123
? 105 123
! 105
? 159 204
? 47 235
? 109 158
? 46 171
? 140 131
? 78 195
? 46 195
! 195
? 359 209
? 137 139
? 71 459
? 289 474
? 183 ...

result:

ok OK (15 test cases)

Test #8:

score: 0
Accepted
time: 68ms
memory: 3788kb

input:

600
2
2 0
0 0
2
3
3 2
0 0
0 0
2
4
3 0
0 0
0 0
1 2
0
0
5
0 0
3 1
4 5
0 0
0 0
1
0
6
3 5
1 4
0 0
6 0
0 0
0 0
0
0
7
3 7
0 0
0 0
2 5
0 0
1 4
0 0
0
1
8
0 0
3 7
1 0
2 5
6 8
0 0
0 0
0 0
0
0
0
9
9 8
0 0
7 2
0 0
0 0
0 0
0 0
4 5
3 6
0
1
2
10
3 6
8 0
4 2
5 7
0 0
10 9
0 0
0 0
0 0
0 0
0
1
2
11
0 0
4 9
5 8
6 3
0 0...

output:

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

result:

ok OK (600 test cases)

Test #9:

score: 0
Accepted
time: 91ms
memory: 11904kb

input:

2
99999
0 0
7999 97267
75750 37659
0 0
0 0
33761 92098
90707 18838
13602 27569
0 0
0 0
0 0
0 0
0 0
0 0
0 0
14586 86647
1519 23132
0 0
3430 14643
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
47066 36968
95308 38482
34100 25297
0 0
0 0
0 0
0 0
88902 58991
0 0
0 0
66315 68538
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0...

output:

? 50379 69076
? 79924 11838
? 18079 15463
? 72017 29994
? 80147 27856
? 80763 26264
? 39876 84186
? 73287 34615
? 43462 43070
? 38721 85806
? 84940 93114
? 3443 79116
? 49016 68555
? 56289 87545
? 32426 3887
! 3887
? 72481 78976
? 96633 84675
? 2124 81852
? 13836 79494
? 80643 24965
? 38932 5573
? 5...

result:

ok OK (2 test cases)

Test #10:

score: 0
Accepted
time: 49ms
memory: 9052kb

input:

15
3
3 2
0 0
0 0
1
7
0 0
3 6
0 0
7 2
0 0
0 0
5 1
2
2
15
14 12
0 0
0 0
0 0
8 6
10 11
0 0
3 7
2 4
0 0
0 0
0 0
15 5
0 0
9 1
0
0
0
31
4 9
0 0
29 17
0 0
0 0
15 31
5 21
18 14
0 0
0 0
0 0
16 2
12 7
0 0
23 10
0 0
30 13
0 0
24 27
11 26
0 0
0 0
0 0
0 0
19 20
0 0
0 0
0 0
6 25
8 1
28 22
2
0
0
2
63
53 48
40 57
0...

output:

? 3 2
! 1
? 7 2
? 3 6
! 6
? 15 5
? 9 1
? 2 4
! 2
? 29 17
? 30 13
? 8 1
? 18 14
! 14
? 1 2
? 53 48
? 63 19
? 30 56
? 55 59
! 56
? 20 115
? 71 68
? 67 3
? 18 16
? 123 55
? 117 104
! 104
? 70 140
? 78 250
? 223 4
? 220 204
? 67 144
? 75 15
? 242 199
! 242
? 60 121
? 414 74
? 99 184
? 301 403
? 425 477
...

result:

ok OK (15 test cases)

Test #11:

score: 0
Accepted
time: 55ms
memory: 9000kb

input:

16
2
0 0
1 0
2
4
4 2
0 0
0 0
3 0
0
0
8
3 0
0 0
0 0
0 0
1 2
0 0
6 4
5 7
0
0
2
16
16 15
0 0
0 0
0 0
7 11
8 10
0 0
13 0
0 0
0 0
0 0
3 9
0 0
4 2
5 14
6 12
0
0
1
32
0 0
22 21
25 18
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
5 10
30 0
1 24
12 31
0 0
0 0
16 8
3 15
11 26
23 14
28 20
6 9
0 0
13 27
0 0
0 0
7 17
0 0
0 0
...

output:

? 2 1
! 1
? 1 3
? 2 1
! 2
? 5 7
? 5 3
? 2 5
! 5
? 1 6
? 5 14
? 7 11
! 5
? 32 3
? 22 21
? 28 20
? 7 17
! 17
? 37 58
? 19 40
? 63 55
? 5 50
? 52 13
! 50
? 92 13
? 92 57
? 80 102
? 22 52
? 127 125
? 87 40
! 125
? 245 3
? 245 223
? 150 131
? 193 34
? 164 71
? 230 148
? 213 212
! 212
? 39 511
? 39 289
? ...

result:

ok OK (16 test cases)

Test #12:

score: 0
Accepted
time: 53ms
memory: 9016kb

input:

15
2
0 0
1 0
2
6
6 4
1 5
0 0
0 0
3 0
0 0
0
2
14
0 0
1 7
5 11
13 9
0 0
2 8
0 0
10 0
0 0
0 0
0 0
14 6
0 0
3 4
0
0
2
30
7 0
5 13
0 0
0 0
14 30
15 20
0 0
0 0
3 19
0 0
0 0
11 21
9 1
16 24
0 0
0 0
28 2
8 10
0 0
0 0
0 0
0 0
18 6
0 0
4 29
12 25
0 0
23 26
0 0
27 22
0
0
0
0
62
0 0
0 0
28 47
7 38
0 0
0 0
17 26...

output:

? 2 1
! 1
? 1 5
? 6 4
! 4
? 12 3
? 2 8
? 1 7
! 7
? 17 23
? 5 13
? 14 30
? 16 24
! 16
? 16 57
? 36 43
? 12 4
? 7 38
? 17 26
! 26
? 125 53
? 17 123
? 15 5
? 52 12
? 88 96
? 54 30
! 30
? 241 42
? 112 193
? 88 124
? 17 30
? 154 233
? 186 72
? 189 243
! 186
? 284 376
? 30 32
? 98 159
? 249 71
? 192 92
? ...

result:

ok OK (15 test cases)

Test #13:

score: 0
Accepted
time: 57ms
memory: 3752kb

input:

600
2
0 0
1 0
2
3
0 0
1 3
0 0
2
4
2 4
0 0
0 0
3 0
0
0
5
2 5
0 0
0 0
0 0
4 3
1
0
6
6 4
0 0
0 0
3 0
2 1
0 0
0
0
7
0 0
0 0
2 4
5 6
0 0
0 0
1 3
0
1
8
2 7
0 0
6 0
0 0
8 3
0 0
4 5
0 0
0
0
0
9
5 2
0 0
7 4
6 8
0 0
0 0
0 0
9 1
0 0
0
0
2
10
3 5
10 7
0 0
0 0
6 2
0 0
4 0
9 1
0 0
0 0
2
0
0
11
9 6
4 1
0 0
0 0
11 ...

output:

? 2 1
! 1
? 1 3
! 3
? 1 3
? 2 1
! 2
? 1 4
? 5 3
! 5
? 4 5
? 3 4
! 3
? 4 7
? 5 6
! 4
? 7 3
? 7 2
? 4 7
! 4
? 4 1
? 4 7
? 6 4
! 4
? 1 2
? 2 4
? 10 2
! 10
? 10 1
? 10 11
? 5 8
! 8
? 4 7
? 8 4
? 5 4
! 5
? 2 4
? 12 2
? 7 12
! 12
? 8 12
? 10 8
? 5 8
! 8
? 14 9
? 1 14
? 11 15
! 15
? 1 6
? 15 16
? 15 14
? 1...

result:

ok OK (600 test cases)

Test #14:

score: 0
Accepted
time: 103ms
memory: 16436kb

input:

2
99999
96748 53986
34197 77552
29863 63559
79099 26449
45078 1051
0 0
27416 4135
0 0
38606 81189
93892 68603
48776 185
79602 18311
51243 83678
89044 40032
28883 35663
0 0
0 0
21603 15821
0 0
51448 75971
70275 8326
0 0
0 0
57049 72937
3297 94939
0 0
59258 39159
3205 34675
54876 24769
0 0
0 0
0 0
851...

output:

? 71188 96970
? 87538 6820
? 59029 32876
? 46360 20365
? 49372 9490
? 51870 93805
? 74496 96975
? 90932 266
? 99552 77780
? 12293 24315
? 92277 15485
? 37634 645
? 22336 24891
? 61213 80836
? 61213 22336
? 86145 22336
! 86145
? 50499 6749
? 17715 75012
? 31421 58179
? 64768 20076
? 64370 98628
? 660...

result:

ok OK (2 test cases)

Test #15:

score: 0
Accepted
time: 61ms
memory: 10552kb

input:

15
3
0 0
1 3
0 0
1
7
0 0
1 7
0 0
6 2
3 4
0 0
0 0
0
1
15
2 11
0 0
13 1
12 14
0 0
0 0
5 8
10 4
0 0
0 0
0 0
0 0
0 0
6 15
9 3
0
0
1
31
24 22
0 0
31 6
0 0
4 3
11 19
0 0
0 0
28 21
25 20
0 0
0 0
0 0
2 16
0 0
27 18
8 10
15 17
26 1
23 29
7 5
12 14
0 0
0 0
0 0
0 0
0 0
0 0
30 13
0 0
0 0
0
0
0
0
63
51 35
33 57
...

output:

? 1 3
! 2
? 2 5
? 1 7
! 2
? 15 4
? 1 15
? 2 11
! 1
? 14 1
? 10 18
? 29 10
? 30 13
! 30
? 38 44
? 42 1
? 2 9
? 34 2
? 5 23
! 23
? 51 31
? 96 62
? 100 8
? 52 89
? 82 52
? 70 57
! 70
? 124 122
? 162 102
? 84 231
? 110 135
? 147 223
? 236 147
? 201 80
! 80
? 322 266
? 146 414
? 72 335
? 66 306
? 89 76
?...

result:

ok OK (15 test cases)

Test #16:

score: 0
Accepted
time: 62ms
memory: 10948kb

input:

16
2
0 0
1 0
2
4
0 0
1 0
4 2
0 0
0
0
8
0 0
0 0
0 0
3 5
8 6
2 0
1 4
0 0
0
0
2
16
0 0
7 8
0 0
1 2
0 0
0 0
0 0
5 10
3 0
12 16
14 13
0 0
15 4
0 0
0 0
6 9
0
0
0
0
32
26 17
5 31
28 25
18 7
0 0
0 0
14 12
15 0
22 4
0 0
29 1
19 2
0 0
0 0
0 0
6 8
10 21
0 0
0 0
0 0
13 3
0 0
0 0
0 0
32 30
0 0
20 9
0 0
0 0
23 16...

output:

? 2 1
! 1
? 2 4
? 1 2
! 1
? 4 6
? 4 1
? 3 4
! 4
? 2 10
? 4 11
? 4 7
? 1 4
! 1
? 1 31
? 3 30
? 21 1
? 21 28
? 13 21
! 21
? 56 43
? 19 25
? 55 36
? 51 19
? 51 50
? 21 51
! 21
? 38 43
? 17 53
? 117 69
? 113 45
? 123 117
? 123 109
? 102 123
! 102
? 133 170
? 75 121
? 14 197
? 1 90
? 3 103
? 95 1
? 95 40...

result:

ok OK (16 test cases)

Test #17:

score: 0
Accepted
time: 55ms
memory: 11532kb

input:

15
2
0 0
1 0
2
6
0 0
5 0
1 2
0 0
0 0
4 3
2
0
14
8 14
0 0
0 0
0 0
0 0
12 11
10 0
0 0
2 7
0 0
4 1
0 0
3 6
5 9
2
0
0
30
29 21
6 9
0 0
0 0
0 0
0 0
0 0
19 17
24 30
0 0
14 26
23 0
0 0
0 0
25 18
0 0
7 20
16 12
0 0
13 11
28 8
10 15
0 0
0 0
0 0
3 22
5 2
0 0
0 0
4 1
0
2
0
2
62
0 0
34 33
0 0
0 0
0 0
37 45
0 0
...

output:

? 2 1
! 1
? 2 6
? 4 6
! 4
? 14 11
? 11 13
? 4 11
! 4
? 8 20
? 9 1
? 1 8
? 29 1
! 1
? 42 59
? 12 31
? 19 40
? 12 40
? 47 40
! 40
? 40 17
? 11 102
? 27 88
? 3 93
? 93 27
? 89 93
! 93
? 90 189
? 158 221
? 198 132
? 32 240
? 4 49
? 49 240
? 1 49
! 1
? 60 192
? 29 303
? 190 312
? 241 495
? 35 402
? 71 20...

result:

ok OK (15 test cases)

Test #18:

score: 0
Accepted
time: 106ms
memory: 12144kb

input:

2
99999
0 0
88119 0
72740 0
6901 19702
0 0
10620 84889
0 0
9552 63972
45156 60768
9152 72379
0 0
59875 97207
48193 0
17282 54916
65927 27713
80083 15817
36966 75381
0 0
77279 56298
0 0
11554 61779
0 0
89976 0
65282 42151
95206 62876
97329 86772
0 0
0 0
0 0
11820 0
0 0
20432 0
50520 39907
0 0
46948 1...

output:

? 52174 35226
? 26122 16093
? 11494 10853
? 11494 91694
? 90037 73088
? 90037 21572
? 51091 91442
? 7067 93596
? 75096 14316
? 75096 55875
? 42793 41734
? 59747 42793
? 472 67072
? 59747 64770
! 92650
? 80592 36933
? 50906 68004
? 73367 65219
? 20489 33796
? 74041 19704
? 35779 74041
? 35779 85560
?...

result:

ok OK (2 test cases)

Test #19:

score: 0
Accepted
time: 253ms
memory: 3664kb

input:

100000
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
2
2
0 0
0 1
2
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0...

output:

? 2 1
! 1
? 2 1
! 2
? 2 1
! 1
? 2 1
! 2
? 2 1
! 1
? 2 1
! 2
? 2 1
! 2
? 2 1
! 2
? 2 1
! 2
? 2 1
! 1
? 2 1
! 2
? 2 1
! 2
? 2 1
! 1
? 2 1
! 1
? 2 1
! 2
? 2 1
! 1
? 2 1
! 1
? 2 1
! 1
? 2 1
! 1
? 2 1
! 2
? 2 1
! 2
? 2 1
! 2
? 2 1
! 1
? 2 1
! 2
? 2 1
! 2
? 2 1
! 1
? 2 1
! 1
? 2 1
! 1
? 2 1
! 1
? 2 1
! 1
...

result:

ok OK (100000 test cases)

Extra Test:

score: 0
Extra Test Passed