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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#728317#9570. Binary Treeucup-team3802#AC ✓376ms12372kbC++233.1kb2024-11-09 14:57:572024-11-09 14:58:04

Judging History

你现在查看的是最新测评结果

  • [2024-11-09 14:58:04]
  • 评测
  • 测评结果:AC
  • 用时:376ms
  • 内存:12372kb
  • [2024-11-09 14:57:57]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, a, b) for(ll i = a; i < b; i++)

void solve(){
    int n;
    cin >> n;
    vector<vector<int>> g(n);
    rep(i, 0, n){
        int a,b;
        cin >> a >> b;
        a--,b--;
        if(a != -1){
            g[i].emplace_back(a);
            g[a].emplace_back(i);
        }
        if(b != -1){
            g[i].emplace_back(b);
            g[b].emplace_back(i);
        }
    }

    vector<int> none(n, 0);
    int ex = n;

    auto deldfs = [&](auto self, int nw, int p)-> void {
        ex--;
        none[nw] = 1;
        for(auto to: g[nw]){
            if(to == p) continue;
            if(none[to]) continue;
            self(self, to, nw);
        }
    };

    while(ex > 1){
        if(ex == 2){
            vector<int> d;
            rep(i,0,n) if(none[i] == 0) d.push_back(i);
            assert(ex == 2);
            cout << "? " << d[0] + 1 << " " << d[1] + 1 << endl;
            int ch;
            cin >> ch;
            if(ch == 0){
                none[d[1]] = 1;
            }else{
                none[d[0]] = 1;
            }
            ex--;
            break;
        }
        priority_queue<pair<int,int>> q;
        vector<int> out(n, 0);
        vector<int> v(n, 1);
        rep(i, 0, n){
            if(none[i]) out[i] = 0;
            else{
                int cnt = 0;
                for(auto to: g[i]){
                    if(none[to]) continue;
                    cnt++;
                }
                if(cnt == 1) q.push({-1, i});
                else out[i] = cnt;
            }
        }

        while(q.size()){
            auto [_v, nw] = q.top();
            q.pop();
            for(auto to: g[nw]){
                if(none[to]) continue;
                out[to]--;
                if(out[to] <= 0) continue;
                v[to] += v[nw];

                if(out[to] == 1){
                    q.push({-v[to], to});
                }
            }
        }

        int mx = 0;
        int mid = -1;
        rep(i,0,n){
            if(none[i]) continue;
            if(mx < v[i]) {
                mx = v[i];
                mid = i;
            }
        }

        int U =-1,V =-1;
        for(auto to: g[mid]){
            if(none[to]) continue;
            if(U == -1) U = to;
            else if(V == -1) V = to;
            else{
                if(v[U] <= v[V] && v[U] < v[to]) U = to;
                else if(v[V] <= v[U] && v[V] < v[to]) V = to;
            }
        }
        cout << "? " << U + 1 << " " << V + 1 << endl;
        int ch;
        cin >> ch;
        if(ch == 0){
            deldfs(deldfs, mid, U);
        }
        if(ch == 1){
            deldfs(deldfs, U, mid);
            deldfs(deldfs, V, mid);
        }
        if(ch == 2){
            deldfs(deldfs, mid, V);
        }
    }
    assert(ex == 1);

    int ls = 0;
    rep(i,0,n) if(none[i] == 0) ls = i+1;
    cout << "! " << ls << endl;
}

int main(){
    int t;
    cin >> t;
    while(t--){
        solve();
    }
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3576kb

input:

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

output:

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

result:

ok OK (2 test cases)

Test #2:

score: 0
Accepted
time: 127ms
memory: 4312kb

input:

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

output:

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

result:

ok OK (5555 test cases)

Test #3:

score: 0
Accepted
time: 89ms
memory: 3752kb

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

output:

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

result:

ok OK (600 test cases)

Test #4:

score: 0
Accepted
time: 175ms
memory: 12372kb

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
? 61196 90504
? 47486 72990
? 14909 5170
? 76280 83317
? 55260 85321
? 93423 52047
? 99419 73829
? 38731 45673
? 20146 99788
? 52589 75058
? 75058 99419
! 99419
? 46352 44110
? 47168 63067
? 94632 84556
? 28594 32192
? 65119 94765
?...

result:

ok OK (2 test cases)

Test #5:

score: 0
Accepted
time: 112ms
memory: 8752kb

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: 102ms
memory: 8768kb

input:

16
2
2 0
0 0
2
4
4 0
3 0
1 0
0 0
2
2
8
5 0
0 0
4 0
8 0
2 0
3 0
6 0
1 0
2
0
0
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
2
0
2
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:

? 1 2
! 2
? 4 3
? 2 3
! 3
? 3 8
? 5 8
? 2 5
! 2
? 1 11
? 14 8
? 11 10
? 10 14
! 10
? 13 16
? 19 29
? 25 24
? 26 25
? 26 29
! 26
? 3 60
? 49 41
? 59 55
? 28 22
? 55 34
? 28 34
! 28
? 80 113
? 97 61
? 42 30
? 117 83
? 55 91
? 91 71
? 42 71
! 42
? 3 106
? 116 254
? 17 170
? 107 228
? 210 97
? 84 75
? 7...

result:

ok OK (16 test cases)

Test #7:

score: 0
Accepted
time: 103ms
memory: 8800kb

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
2
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
2
0
0
2
62
24 0
22 0
18 0
17 0
49 0
53 0
3...

output:

? 1 2
! 2
? 5 2
? 6 5
! 5
? 5 14
? 12 6
? 14 12
! 9
? 20 27
? 2 13
? 18 17
? 11 18
! 18
? 10 60
? 9 2
? 36 34
? 24 47
? 47 9
! 52
? 9 94
? 59 69
? 17 52
? 111 44
? 46 51
? 52 51
! 52
? 204 159
? 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: 109ms
memory: 3752kb

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
2
2
5
0 0
3 1
4 5
0 0
0 0
0
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
2
0
8
0 0
3 7
1 0
2 5
6 8
0 0
0 0
0 0
2
1
2
9
9 8
0 0
7 2
0 0
0 0
0 0
0 0
4 5
3 6
0
1
0
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:

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

result:

ok OK (600 test cases)

Test #9:

score: 0
Accepted
time: 192ms
memory: 11192kb

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 22163
? 11838 79924
? 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 42261
? 84675 96633
? 2124 81852
? 13836 79494
? 80643 24965
? 38932 5573
? 5...

result:

ok OK (2 test cases)

Test #10:

score: 0
Accepted
time: 116ms
memory: 8128kb

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: 104ms
memory: 8188kb

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
2
1
0
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
2
1
0
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 ...

output:

? 1 2
! 2
? 4 2
? 3 4
! 3
? 1 8
? 6 4
? 7 8
! 7
? 16 15
? 8 16
? 3 9
? 12 16
! 12
? 3 32
? 22 21
? 28 20
? 7 17
! 28
? 58 37
? 19 40
? 30 38
? 23 45
? 28 49
! 49
? 92 13
? 57 92
? 80 102
? 22 52
? 74 99
? 15 61
! 61
? 245 3
? 223 245
? 150 131
? 193 34
? 102 191
? 1 232
? 105 9
! 9
? 324 81
? 227 36...

result:

ok OK (16 test cases)

Test #12:

score: 0
Accepted
time: 113ms
memory: 8140kb

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
1
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
2
62
0 0
0 0
28 47
7 38
0 0
0 0
17 26...

output:

? 1 2
! 2
? 2 4
? 2 3
! 3
? 14 6
? 3 4
? 5 11
! 3
? 28 2
? 23 26
? 18 6
? 8 10
! 10
? 61 43
? 18 30
? 31 50
? 10 51
? 42 44
! 44
? 125 93
? 17 123
? 15 5
? 10 84
? 109 99
? 1 11
! 11
? 253 196
? 42 224
? 178 31
? 218 103
? 80 86
? 8 239
? 234 2
! 2
? 284 376
? 30 32
? 22 406
? 231 379
? 464 168
? 35...

result:

ok OK (15 test cases)

Test #13:

score: 0
Accepted
time: 102ms
memory: 3692kb

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

output:

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

result:

ok OK (600 test cases)

Test #14:

score: 0
Accepted
time: 189ms
memory: 12104kb

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:

? 96970 71188
? 6820 87538
? 32876 59029
? 20365 46360
? 49372 9490
? 93805 51870
? 96975 74496
? 87346 50053
? 22841 44535
? 62765 6517
? 93268 35799
? 91247 66059
? 53023 73850
? 87861 94963
? 94963 53023
? 53023 82393
! 53023
? 70265 86513
? 6109 30583
? 74855 26639
? 82870 83080
? 44869 39637
? ...

result:

ok OK (2 test cases)

Test #15:

score: 0
Accepted
time: 116ms
memory: 8776kb

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
2
2
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
2
2
0
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
2
2
2
1
63
51 35
33 57
...

output:

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

result:

ok OK (15 test cases)

Test #16:

score: 0
Accepted
time: 106ms
memory: 8712kb

input:

16
2
0 0
1 0
2
4
0 0
1 0
4 2
0 0
2
2
8
0 0
0 0
0 0
3 5
8 6
2 0
1 4
0 0
2
2
0
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
2
2
2
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:

? 1 2
! 2
? 1 3
? 3 4
! 4
? 7 5
? 8 6
? 2 6
! 2
? 4 8
? 8 16
? 3 16
? 6 16
! 6
? 11 17
? 4 12
? 12 31
? 29 31
? 24 31
! 24
? 43 56
? 19 25
? 36 55
? 51 19
? 21 55
? 50 55
! 55
? 38 43
? 66 19
? 105 12
? 63 83
? 83 114
? 98 114
? 44 114
! 114
? 170 133
? 75 121
? 72 114
? 247 250
? 169 30
? 176 247
?...

result:

ok OK (16 test cases)

Test #17:

score: 0
Accepted
time: 117ms
memory: 8736kb

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:

? 1 2
! 2
? 6 2
? 2 5
! 2
? 11 14
? 14 7
? 5 14
! 5
? 8 20
? 9 1
? 1 8
? 1 29
! 29
? 59 42
? 2 15
? 44 51
? 51 2
? 2 34
! 34
? 40 17
? 11 102
? 88 27
? 72 111
? 111 88
? 10 111
! 111
? 189 90
? 65 224
? 229 10
? 57 98
? 16 15
? 15 67
? 13 15
! 13
? 60 192
? 29 303
? 312 190
? 118 457
? 382 143
? 275...

result:

ok OK (15 test cases)

Test #18:

score: 0
Accepted
time: 211ms
memory: 11028kb

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:

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

result:

ok OK (2 test cases)

Test #19:

score: 0
Accepted
time: 376ms
memory: 3548kb

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:

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

result:

ok OK (100000 test cases)

Extra Test:

score: 0
Extra Test Passed