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#750925#9484. Colored Complete GraphaYi_7#TL 1386ms10308kbC++172.8kb2024-11-15 16:22:512024-11-15 16:22:52

Judging History

你现在查看的是最新测评结果

  • [2024-11-15 16:22:52]
  • 评测
  • 测评结果:TL
  • 用时:1386ms
  • 内存:10308kb
  • [2024-11-15 16:22:51]
  • 提交

answer

#include <bits/stdc++.h>

#define int long long

void solve() {
    int n;
    std::cin >> n;
    std::set<int> B, R, B1, R1;
    for (int i = 2; i <= n; i++) {
        B1.insert(i);
        R1.insert(i);
    }

    // B.insert(1);
    // R.insert(1);

    std::vector<std::pair<int, int>> ans_B, ans_R;

    for (int i = 2; i <= n; i++) {
        std::cout << "? " << 1 << ' ' << i << std::endl;
        char op;
        std::cin >> op;
        if (op == 'B') {
            ans_B.emplace_back(1, i);
            B1.erase(i);
            B.insert(i);
        } else {
            ans_R.emplace_back(1, i);
            R1.erase(i);
            R.insert(i);
        }

        if (ans_B.size() == n - 1) {
            std::cout << "!" << std::endl;
            for (auto &[u, v] : ans_B) {
                std::cout << u << ' ' << v << std::endl;
            }
            return;
        }
        if (ans_R.size() == n - 1) {
            std::cout << "!" << std::endl;
            for (auto &[u, v] : ans_R) {
                std::cout << u << ' ' << v << std::endl;
            }
            return;
        }
    }

    for (auto &i : B) {
        auto t = B1;
        for (auto &j : B1) {
            std::cout << "? " << i << ' ' << j << std::endl;
            char op;
            std::cin >> op;
            if (op == 'B') {
                ans_B.emplace_back(i, j);
                // B.insert(j);
                t.erase(j);
            } else {
                ans_R.emplace_back(i, j);
                R.insert(i);
                R1.erase(j);
                break;
            }
            if (ans_B.size() == n - 1) {
                std::cout << "!" << std::endl;
                for (auto &[u, v] : ans_B) {
                    std::cout << u << ' ' << v << std::endl;
                }
                return;
            }
            if (ans_R.size() == n - 1) {
                std::cout << "!" << std::endl;
                for (auto &[u, v] : ans_R) {
                    std::cout << u << ' ' << v << std::endl;
                }
                return;
            }
        }
        B1 = t;
    }
    if (ans_B.size() == n - 1) {
        std::cout << "!" << std::endl;
        for (auto &[u, v] : ans_B) {
            std::cout << u << ' ' << v << std::endl;
        }
        return;
    }
    if (ans_R.size() == n - 1) {
        std::cout << "!" << std::endl;
        for (auto &[u, v] : ans_R) {
            std::cout << u << ' ' << v << std::endl;
        }
        return;
    }
}

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

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

    for (int i = 0; i < t; ++i) {
        solve();
    }

    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3604kb

input:

3
B
R
B

output:

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

result:

ok AC

Test #2:

score: 0
Accepted
time: 8ms
memory: 3724kb

input:

983
B
R
R
B
B
B
B
B
R
B
R
R
R
R
R
R
R
B
B
R
R
B
R
B
R
R
B
B
R
B
R
R
R
R
B
R
B
B
B
R
R
R
B
B
R
R
B
R
B
R
B
B
B
R
B
R
R
B
R
B
B
R
R
R
B
B
B
B
R
B
R
R
B
R
B
B
R
B
R
B
R
B
R
R
R
B
B
B
R
R
B
B
B
R
R
B
R
B
B
B
R
B
B
R
R
B
B
R
R
R
R
B
R
R
B
B
B
R
B
B
B
B
R
B
R
R
B
R
R
R
B
R
R
B
R
R
B
R
R
B
R
B
R
B
B
R
B
R
...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #3:

score: 0
Accepted
time: 1ms
memory: 3564kb

input:

75
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #4:

score: 0
Accepted
time: 4ms
memory: 3600kb

input:

430
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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R
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R
R
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R
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R
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R
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R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #5:

score: 0
Accepted
time: 3ms
memory: 3648kb

input:

238
B
R
R
B
B
B
B
B
R
B
R
R
R
R
R
R
R
B
B
R
R
B
R
B
R
R
B
B
R
B
R
R
R
R
B
R
B
B
B
R
R
R
B
B
R
R
B
R
B
R
B
B
B
R
B
R
R
B
R
B
B
R
R
R
B
B
B
B
R
B
R
R
B
R
B
B
R
B
R
B
R
B
R
R
R
B
B
B
R
R
B
B
B
R
R
B
R
B
B
B
R
B
B
R
R
B
B
R
R
R
R
B
R
R
B
B
B
R
B
B
B
B
R
B
R
R
B
R
R
R
B
R
R
B
R
R
B
R
R
B
R
B
R
B
B
R
B
R
...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #6:

score: 0
Accepted
time: 0ms
memory: 3612kb

input:

42
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
B
R
R
R
R
R
R
R
R
R
R
R
R
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 30 2
? 30 3
? 30 4
...

result:

ok AC

Test #7:

score: 0
Accepted
time: 1ms
memory: 3704kb

input:

759
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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R
R
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R
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R
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R
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R
R
R
R
R
R
R
R
R
R
R
R
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R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #8:

score: 0
Accepted
time: 4ms
memory: 3616kb

input:

389
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #9:

score: 0
Accepted
time: 1ms
memory: 3492kb

input:

47
R
R
R
R
R
R
R
B
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #10:

score: 0
Accepted
time: 27ms
memory: 5332kb

input:

14657
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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R
R
R
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R
R
R
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R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #11:

score: 0
Accepted
time: 31ms
memory: 5204kb

input:

15755
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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R
R
R
R
R
R
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R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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R
R
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R
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R
R
R
R
R
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R
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R
R
R
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R
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R
R
R
R
R
R
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R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #12:

score: 0
Accepted
time: 1386ms
memory: 5792kb

input:

14236
B
R
R
B
B
B
B
B
R
B
R
R
R
R
R
R
R
B
B
R
R
B
R
B
R
R
B
B
R
B
R
R
R
R
B
R
B
B
B
R
R
R
B
B
R
R
B
R
B
R
B
B
B
R
B
R
R
B
R
B
B
R
R
R
B
B
B
B
R
B
R
R
B
R
B
B
R
B
R
B
R
B
R
R
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...

output:

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? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #13:

score: 0
Accepted
time: 90ms
memory: 6556kb

input:

19615
R
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...

output:

? 1 2
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? 1 37
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? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #14:

score: 0
Accepted
time: 77ms
memory: 6660kb

input:

30668
R
R
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...

output:

? 1 2
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? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #15:

score: 0
Accepted
time: 152ms
memory: 10308kb

input:

39166
R
R
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...

output:

? 1 2
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? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #16:

score: 0
Accepted
time: 59ms
memory: 7596kb

input:

35168
R
R
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...

output:

? 1 2
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? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #17:

score: 0
Accepted
time: 129ms
memory: 8488kb

input:

45420
R
R
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...

output:

? 1 2
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? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #18:

score: 0
Accepted
time: 82ms
memory: 8536kb

input:

45526
R
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...

output:

? 1 2
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? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #19:

score: 0
Accepted
time: 97ms
memory: 8744kb

input:

48225
R
R
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...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
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? 1 8
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? 1 10
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? 1 12
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? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #20:

score: 0
Accepted
time: 104ms
memory: 7972kb

input:

40451
R
R
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...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
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? 1 21
? 1 22
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? 1 25
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? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #21:

score: 0
Accepted
time: 110ms
memory: 8788kb

input:

47265
R
R
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...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #22:

score: 0
Accepted
time: 75ms
memory: 8184kb

input:

40881
R
R
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...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
? 1 28
? 1 29
? 1 30
? 1 31
? 1 32
? 1 33
? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #23:

score: -100
Time Limit Exceeded

input:

44327
B
R
R
B
B
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B
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R
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...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
? 1 9
? 1 10
? 1 11
? 1 12
? 1 13
? 1 14
? 1 15
? 1 16
? 1 17
? 1 18
? 1 19
? 1 20
? 1 21
? 1 22
? 1 23
? 1 24
? 1 25
? 1 26
? 1 27
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? 1 31
? 1 32
? 1 33
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? 1 37
? 1 38
? 1 39
? 1 40
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...

result: