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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#455909#8819. CNOI Knowledgeucup-team4074WA 1ms3548kbC++14712b2024-06-27 00:03:072024-06-27 00:03:07

Judging History

你现在查看的是最新测评结果

  • [2024-06-27 00:03:07]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3548kb
  • [2024-06-27 00:03:07]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
const int N = 1005;
int n, cnt(0), col[N];
int check(int l, int r) {
    int x;
    cout << "? " << l << " " << r;
    cout.flush();
    cin >> x;
    return x == ((r - l + 1) * (r - l + 2) / 2);
}

signed main() {
    cin >> n;
    for (int i = 1; i <= n; i++) {
        int l(1), r(i);
        while (l < r) {
            int mid((l + r) >> 1);
            if (check(mid, i))r = mid;
            else l = mid + 1;
        }
        if (l == 1) {
            col[i] = ++cnt;
        } else col[i] = col[l - 1];
        cout << col[i] << '\n';
    }
    cout << "! ";
    for (int i = 1; i <= n; i++)cout << col[i] << " ";
    return 0;
}

Details

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Test #1:

score: 0
Wrong Answer
time: 1ms
memory: 3548kb

input:

12

output:

1
? 1 2

result:

wrong answer Invalid output.