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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#107851#6303. InversionLG_MonkeyWA 322ms3420kbC++141.3kb2023-05-22 22:43:132023-05-22 22:43:15

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-05-22 22:43:15]
  • 评测
  • 测评结果:WA
  • 用时:322ms
  • 内存:3420kb
  • [2023-05-22 22:43:13]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define pii pair<int, int>
#define mp make_pair
#define fi first
#define se second 
#define deb(var) cerr << #var << '=' << var << "; "
//#define int long long
int n, a[100010], i, p[20001];
struct BIT {
	int w[2010];
	void add(int p, int x) {
		for (int i = p; i <= 2000; i += i & (-i)) w[i] += x;
	}
	int query(int p) {
		int res = 0;
		for (int i = p; i; i -= i & (-i)) res += w[i];
		return res;
	}
} bit;
int q(int l, int r) {
	if (l >= r) return 0; 
	if (r < i) {
		memset(bit.w, 0, sizeof bit.w);
		int ans = 0;
		for (int j = 1; j <= i; j++) {
			if (a[j] >= l && a[j] <= r) {
				ans += bit.query(2000) - bit.query(a[j]); bit.add(a[j], 1);
			}
		}
		return ans;
	}
	cout << "? " << l << " " << r << endl;
	int x; cin >> x; return x;
}
int cmp(int x, int y) {
	return q(x, y) ^ q(x + 1, y) ^ q(x, y - 1) ^ q(x + 1, y - 1); 
}
signed main() {
	cin >> n;
	i = 1; a[1] = 1;
	for (i = 2; i <= n; i++) {
		int l = 0, r = i - 1;
		a[i] = i;
		while (l < r) {
			int mid = (l + r + 1) >> 1;
			if (!cmp(a[mid], i)) l = mid; else r = mid - 1; 
		}
		for (int j = i; j > l + 1; j--) a[j] = a[j - 1]; a[l + 1] = i;
	}
	for (int i = 1; i <= n; i++) p[a[i]] = i;
	cout << "! ";
	for (int i = 1; i <= n; i++) cout << p[i] << " "; cout << endl;
}

Details

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Test #1:

score: 100
Accepted
time: 2ms
memory: 3348kb

input:

3
0
0
1

output:

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

result:

ok OK, guesses=3

Test #2:

score: -100
Wrong Answer
time: 322ms
memory: 3420kb

input:

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

output:

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

result:

wrong answer Wa.