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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
#854900#8704. 排队__zyx__0 0ms0kbC++141.9kb2025-01-12 10:48:032025-01-12 10:48:09

Judging History

你现在查看的是最新测评结果

  • [2025-01-12 10:48:09]
  • 评测
  • 测评结果:0
  • 用时:0ms
  • 内存:0kb
  • [2025-01-12 10:48:03]
  • 提交

answer

#include <bits/stdc++.h>
//#define int long long
using namespace std;
const int N = 3e5 + 5;
struct node {
	int ls, rs, rd, siz, fa, w;
} t[N];
#define ls(k) t[k].ls
#define rs(k) t[k].rs
void pushup(int k) {
	t[k].siz = t[ls(k)].siz + t[rs(k)].siz + 1;
	if (ls(k)) t[ls(k)].fa = k; 
	if (rs(k)) t[rs(k)].fa = k;
	t[k].w = min({t[ls(k)].w, t[rs(k)].w, k});
//	assert(t[k].w);
}
void split(int k, int w, int &x, int &y) {
	if (!k) return x = y = 0, void();
	if (t[ls(k)].siz >= w) y = k, split(ls(k), w, x, ls(y)), pushup(y);
	else x = k, split(rs(k), w - t[ls(k)].siz - 1, rs(x), y), pushup(x);
}
int merge(int x, int y) {
	if (!x || !y) return x | y;
	if (t[x].rd > t[y].rd) return rs(x) = merge(rs(x), y), pushup(x), x;
	else return ls(y) = merge(x, ls(y)), pushup(y), y;
} 
int ts, rt, fx, fy, fz, ft, fu;
mt19937 Rand(2347); 
int newnode() {
	return ts++, t[ts] = {0, 0, Rand(), 1, 0, ts}, ts;
}
int find(int k, int w) {
	if (!k) return 0;
	if (k < w || w > t[ls(k)].w) return find(ls(k), w);
	else return t[ls(k)].siz + 1 + find(rs(k), w);
}
int rnk(int x) {
	if (!x) return 0;
	int res = t[ls(x)].siz + 1;
	while (x) {
		if (rs(t[x].fa) == x) 
			res += t[ls(t[x].fa)].siz + 1;
		x = t[x].fa;
	}
	split(rt, res - 1, fx, fy);
	assert(fy == x); rt = merge(fx, fy);
	return res;
}
void move(int x, int y) {
	split(rt, rnk(x) - 1, fx, fz);
	split(fz, find(fz, x), fz, fy);
	rt = merge(fx, fy);
	split(rt, rnk(y), fx, ft);
	split(ft, find(ft, x), ft, fy);
	rt = merge(merge(fx, ft), merge(fz, fy));
}
void insert(int pos) {
	split(rt, pos, fx, fy);
	rt = merge(merge(fx, newnode()), fy);
} 
signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0), cout.tie(0);
	int sub, n; cin >> sub >> n; t[0].w = N;
	while (n--) {
		int op, x, y; cin >> op >> x; 
		if (op == 1) insert(rnk(x));
		else if (op == 2) cin >> y, move(x, y);
		else cout << rnk(x) << '\n';
	}
	return 0; 
} 

详细

Subtask #1:

score: 0
Runtime Error

Test #1:

score: 0
Runtime Error

input:

0 8
1 0
1 1
1 2
3 2
2 2 0
3 1
3 2
3 3

output:


result:


Subtask #2:

score: 0
Runtime Error

Test #5:

score: 0
Runtime Error

input:

1 298913
1 0
3 1
3 1
3 1
3 1
3 1
1 0
1 0
3 3
1 2
1 2
3 5
3 5
1 1
1 3
1 4
3 3
1 3
1 6
3 7
3 2
3 5
3 8
3 2
1 8
3 3
1 4
3 2
3 7
1 3
3 4
1 10
3 14
3 13
1 12
3 4
1 8
1 15
1 16
3 9
3 14
3 10
3 8
3 7
1 16
1 15
3 16
3 13
1 19
3 13
3 1
3 14
1 18
1 22
3 8
1 17
3 18
3 9
1 18
3 9
3 1
1 20
3 11
3 5
3 2
3 22
1 22...

output:


result:


Subtask #3:

score: 0
Runtime Error

Test #20:

score: 0
Runtime Error

input:

2 298235
1 0
1 1
3 2
1 0
1 3
3 4
3 3
3 3
3 2
3 4
3 2
3 3
1 2
3 3
1 4
1 2
1 1
3 5
3 8
1 5
1 9
3 10
3 8
3 10
3 5
3 8
3 5
1 2
1 9
3 5
3 7
3 12
3 3
1 6
3 4
3 3
3 11
3 8
3 9
3 7
3 6
3 4
1 12
1 11
3 13
3 13
1 11
3 16
3 6
3 14
3 9
3 5
3 13
1 9
1 17
3 16
3 13
3 5
3 15
3 8
3 4
3 13
1 18
3 15
3 16
3 19
3 4
1 ...

output:


result:


Subtask #4:

score: 0
Runtime Error

Test #35:

score: 0
Runtime Error

input:

3 299743
1 0
1 1
3 1
1 2
3 2
1 0
3 3
3 2
3 1
3 2
2 2 1
3 3
3 3
3 4
3 1
3 2
3 2
2 1 0
3 2
3 1
3 1
1 0
3 2
1 2
1 1
3 2
2 5 2
1 6
1 0
2 5 2
1 7
3 8
3 5
3 5
2 7 5
2 9 4
3 5
3 8
2 6 2
2 3 0
2 2 0
1 1
2 3 1
1 8
2 7 0
3 3
1 12
2 13 9
1 5
2 2 1
2 14 13
1 12
2 1 0
2 12 10
2 15 12
1 0
1 6
3 6
2 3 2
2 17 6
3 4...

output:


result:


Subtask #5:

score: 0
Skipped

Dependency #1:

0%