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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#594474#6303. InversionshiqiaqiayaWA 51ms66280kbC++202.2kb2024-09-28 00:28:302024-09-28 00:28:30

Judging History

你现在查看的是最新测评结果

  • [2024-09-28 00:28:30]
  • 评测
  • 测评结果:WA
  • 用时:51ms
  • 内存:66280kb
  • [2024-09-28 00:28:30]
  • 提交

answer

#include <bits/stdc++.h>
#define int long long
using namespace std;
template <class T, class ... A> void debug(const T & t, const A & ... a) {
	cerr << "[" << t, ((cerr << ", " << a), ...), cerr << "]\n";
}
mt19937 rnd(time(0));
signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    
    // int t = 0;
    // for (int i = 1; i < 2000; i++) {
    // 	t += log2(i) * 2;
    // }
    // cout << t << "\n";

    int n;
    cin >> n;

    vector<int> a;
    a.push_back(1);

    vector vis(n + 1, vector<int> (n + 1, -1));

    auto ask = [&](int l, int r) -> int {
    	if (l >= r) return 0;
    	if (vis[l][r] != -1) return vis[l][r];
    	cout << "? " << l << " " << r << endl;
    	int x;
    	cin >> x;
    	return vis[l][r] = x;
    };

    vector dp(n + 1, vector<int> (n + 1, 0));
    auto compare = [&](int x, int y, int a, int d) -> bool {
    	// int a = ask(x, y - 1);
    	int b = ask(x + 1, y);
    	int c = ask(x, y);
    	// int d = ask(x + 1, y - 1);
    	if ((a + b + c - d + 2) % 2 == 0) return false;
    	return true;
    };

    for (int i = 2; i <= n; i++) {
    	int L = 0, R = a.size() - 1, res = -1;
    	while (L <= R) {
    		int mid = (L + R) / 2;
    		int x0 = dp[a[mid]][i - 1], x1 = dp[a[mid] + 1][i - 1];
    		if (!compare(a[mid], i, x0, x1)) {
    			res = mid;
    			L = mid + 1;
    		} else {
    			R = mid - 1;
    		}
    	}

    	a.insert(a.begin() + res + 1, i);
    	vector<int> d(i + 1);
    	for (int j = 0; j < a.size(); j++) {
    		if (j == res + 1) continue;
    		if (j < res + 1) {
    			d[a[j]] = 0;
    		} else {
    			d[a[j]] = 1;
    		}
    	}

    	for (int j = 1; j < i; j++) {
    		d[j] += d[j - 1];
    		dp[j][i] = dp[j][i - 1] + d[j];
    	}
    }

    vector<int> ans(n + 1);
    for (int i = 0; i < n; i++) {
    	ans[a[i]] = i + 1;
    }

    cout << "! ";
    for (int i = 1; i <= n; i++) {
    	cout << ans[i] << " \n"[i == n];
    }
    // for (int i = 0; i < a.size(); i++) {
    // 	cout << a[i] << " \n"[i == a.size() - 1];
    // }

    // for (int i = 1; i <= n; i++) {
    // 	for (int j = 1; j <= n; j++) {
    // 		cout << dp[i][j] << " \n"[j == n];
    // 	}
    // }

    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3888kb

input:

3
0
1
0

output:

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

result:

ok OK, guesses=3

Test #2:

score: -100
Wrong Answer
time: 51ms
memory: 66280kb

input:

1993
0
0
0
0
0
0
1
0
0
0
0
0
1
0
1
0
1
0
0
0
1
0
1
1
1
0
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
1
0
1
1
1
1
1
0
0
1
0
0
1
1
1
1
0
1
1
0
1
0
0
0
0
0
1
0
0
1
1
0
1
1
1
0
1
1
0
1
1
1
0
1
0
0
1
1
1
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
1
1
0
1
0
1
0
1
1
1
0
1
0
0
1
1
0
1
0
1
0
1
1
0
0
1
0
1
0
1
0
1
0...

output:

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

result:

wrong answer Wa.