oj.uz

Submission #893488

# Submission time Handle Problem Language Result Execution time Memory
893488 2023-12-27T05:48:33 Z Jawad_Akbar_JJ Split the Attractions (IOI19_split) C++17
100 / 100
 126 ms 53744 KB 
#include <iostream>
#include <vector>
#include <set>
#include <cstring>
#include <cassert>
#include "split.h"
#include <algorithm>
 
using namespace std;
const int N = 1e5 + 10;

vector<vector<int>> v;
vector<int> nei[N],ch[N];
int A,B;
int mn[N];
int sz[N];
int hei[N];
bool seen[N];
int color[N];
bool found = false;
int K;
 
void dfs_color1(int u,int c){
	if (seen[u])
		return;
	if (K<=0)
		return;
	color[u] = c;
	seen[u] = true;
	K--;
	for (int i : nei[u]){
		if (seen[i])
			continue;
		dfs_color1(i,c);
	}
}

void dfs_color2(int u,int c){
	if (seen[u])
		return;
	if (K<=0)
		return;
	color[u] = c;
	seen[u] = true;
	K--;
	for (int i : ch[u]){
		if (seen[i])
			continue;
		dfs_color2(i,c);
	}
}

void dfs(int u,int h = 1){
	sz[u] = 1;
	hei[u] = h++;
	seen[u] = true;
	mn[u] = hei[u];
	for (int i : nei[u]){
		if (seen[i]){
			mn[u] = min(mn[u],hei[i]);
			continue;
		}
		ch[u].push_back(i);
		dfs(i,h);
		sz[u] += sz[i];
		mn[u] = min(mn[u],mn[i]);
	}
}
 
// #################################### reset seen
bool called = false;
void call(int u,set<int> s,int c,int Sz){
	if (called)
		return;
	called = true;
	memset(seen,false,sizeof seen);
	seen[u] = true;
	color[u] = c;
	Sz--;
	K = Sz;
	for (int i : s)
		dfs_color2(i,c);
}
 
void dfs2(int u){
	int p1 = sz[u];
	int p2 = sz[1] - sz[u];
 
	set<int> s;
 
	for (int  i : ch[u]){
		s.insert(i);
		dfs2(i);
		if (found)
          	return;
	}
 
	if (p1>=A and p2>=B){
		call(u,s,v[0][1],A);
		K = B;
		dfs_color1(1,v[1][1]);
		found = true;
		return;
	}
	else if (p1>=B and p2>=A){
		call(u,s,v[1][1],B);
		K = A;
		dfs_color1(1,v[0][1]);
		found = true;
		return;
	}
 
	for (int i : ch[u]){
		if (found)
			return;
		
		if (p1 - sz[i] >= A and mn[i] < hei[u]){
			s.erase(i);
			p1 -= sz[i];
			p2 += sz[i];
		}
		if (p1>=A and p2>=B){
			call(u,s,v[0][1],A);
			K = B;
			dfs_color1(1,v[1][1]);
			found = true;
			return;
		}
		if (p1>=B and p2>=A){
			call(u,s,v[1][1],B);
			K = A;
			dfs_color1(1,v[0][1]);
			found = true;
			return;
		}
	}
}
 
vector<int> find_split(int n,int a,int b,int c,vector<int> p,vector<int> q){
	int m = p.size();
 
	for (int i=0;i<m;i++){
		p[i]++;
		q[i]++;
		nei[p[i]].push_back(q[i]);
		nei[q[i]].push_back(p[i]);
	}
	v.push_back({a,1});
	v.push_back({b,2});
	v.push_back({c,3});
 
	sort(begin(v),end(v));
 
	A = v[0][0];
	B = v[1][0];
 
	dfs(1,1);
 
	memset(seen,false,sizeof seen);
 
	dfs2(1);

	vector<int> col;
	if (!found){
		for (int i=1;i<=n;i++)
			col.push_back(0);
		return col;
	}
	for (int i=1;i<=n;i++){
		if (color[i]==0)
			col.push_back(v[2][1]);
		else
			col.push_back(color[i]);
	}
	return col;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6492 KB ok, correct split
2 Correct 1 ms 6492 KB ok, correct split
3 Correct 1 ms 6492 KB ok, correct split
4 Correct 1 ms 6492 KB ok, correct split
5 Correct 1 ms 6492 KB ok, correct split
6 Correct 1 ms 6492 KB ok, correct split
7 Correct 93 ms 52084 KB ok, correct split
8 Correct 58 ms 27476 KB ok, correct split
9 Correct 70 ms 33336 KB ok, correct split
10 Correct 85 ms 53496 KB ok, correct split
11 Correct 87 ms 53744 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB ok, correct split
2 Correct 1 ms 6492 KB ok, correct split
3 Correct 1 ms 6492 KB ok, correct split
4 Correct 70 ms 19404 KB ok, correct split
5 Correct 43 ms 13788 KB ok, correct split
6 Correct 84 ms 53564 KB ok, correct split
7 Correct 78 ms 41708 KB ok, correct split
8 Correct 68 ms 16504 KB ok, correct split
9 Correct 46 ms 15476 KB ok, correct split
10 Correct 32 ms 13248 KB ok, correct split
11 Correct 36 ms 12876 KB ok, correct split
12 Correct 32 ms 12832 KB ok, correct split

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6488 KB ok, correct split
2 Correct 49 ms 13784 KB ok, correct split
3 Correct 16 ms 9564 KB ok, correct split
4 Correct 1 ms 6492 KB ok, correct split
5 Correct 71 ms 27472 KB ok, correct split
6 Correct 63 ms 26392 KB ok, correct split
7 Correct 71 ms 25428 KB ok, correct split
8 Correct 75 ms 32016 KB ok, correct split
9 Correct 79 ms 24576 KB ok, correct split
10 Correct 15 ms 9052 KB ok, no valid answer
11 Correct 23 ms 10220 KB ok, no valid answer
12 Correct 51 ms 15056 KB ok, no valid answer
13 Correct 53 ms 13924 KB ok, no valid answer
14 Correct 57 ms 16720 KB ok, no valid answer

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB ok, correct split
2 Correct 1 ms 6492 KB ok, no valid answer
3 Correct 1 ms 6492 KB ok, correct split
4 Correct 2 ms 6492 KB ok, correct split
5 Correct 1 ms 6492 KB ok, correct split
6 Correct 1 ms 6488 KB ok, correct split
7 Correct 1 ms 6492 KB ok, correct split
8 Correct 1 ms 6492 KB ok, correct split
9 Correct 3 ms 7004 KB ok, correct split
10 Correct 3 ms 6748 KB ok, correct split
11 Correct 1 ms 6580 KB ok, correct split
12 Correct 3 ms 7000 KB ok, correct split
13 Correct 1 ms 6492 KB ok, correct split
14 Correct 1 ms 6492 KB ok, correct split
15 Correct 1 ms 6492 KB ok, correct split
16 Correct 2 ms 6492 KB ok, correct split
17 Correct 1 ms 6492 KB ok, correct split
18 Correct 1 ms 6492 KB ok, correct split
19 Correct 1 ms 6492 KB ok, correct split
20 Correct 2 ms 6744 KB ok, correct split
21 Correct 2 ms 7004 KB ok, correct split
22 Correct 2 ms 7004 KB ok, correct split
23 Correct 2 ms 7260 KB ok, correct split
24 Correct 2 ms 7004 KB ok, correct split
25 Correct 2 ms 7004 KB ok, correct split
26 Correct 3 ms 6748 KB ok, correct split
27 Correct 3 ms 6748 KB ok, correct split
28 Correct 3 ms 6944 KB ok, correct split
29 Correct 1 ms 6492 KB ok, correct split
30 Correct 3 ms 6748 KB ok, correct split
31 Correct 2 ms 6492 KB ok, correct split
32 Correct 2 ms 6492 KB ok, correct split
33 Correct 2 ms 6492 KB ok, correct split
34 Correct 2 ms 6748 KB ok, correct split
35 Correct 2 ms 6748 KB ok, correct split
36 Correct 2 ms 6748 KB ok, correct split
37 Correct 3 ms 6748 KB ok, correct split
38 Correct 3 ms 7004 KB ok, correct split
39 Correct 3 ms 6744 KB ok, correct split
40 Correct 3 ms 6748 KB ok, correct split
41 Correct 2 ms 6748 KB ok, correct split
42 Correct 2 ms 6624 KB ok, correct split
43 Correct 3 ms 6748 KB ok, correct split
44 Correct 3 ms 6748 KB ok, correct split
45 Correct 3 ms 6748 KB ok, correct split
46 Correct 3 ms 7260 KB ok, correct split
47 Correct 2 ms 7004 KB ok, no valid answer
48 Correct 2 ms 6744 KB ok, correct split
49 Correct 3 ms 7260 KB ok, correct split
50 Correct 1 ms 6492 KB ok, no valid answer
51 Correct 1 ms 6492 KB ok, no valid answer
52 Correct 2 ms 6748 KB ok, no valid answer
53 Correct 3 ms 6800 KB ok, no valid answer
54 Correct 2 ms 6748 KB ok, no valid answer
55 Correct 3 ms 6748 KB ok, no valid answer
56 Correct 2 ms 6748 KB ok, no valid answer

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6492 KB ok, correct split
2 Correct 1 ms 6492 KB ok, correct split
3 Correct 1 ms 6492 KB ok, correct split
4 Correct 1 ms 6492 KB ok, correct split
5 Correct 1 ms 6492 KB ok, correct split
6 Correct 1 ms 6492 KB ok, correct split
7 Correct 93 ms 52084 KB ok, correct split
8 Correct 58 ms 27476 KB ok, correct split
9 Correct 70 ms 33336 KB ok, correct split
10 Correct 85 ms 53496 KB ok, correct split
11 Correct 87 ms 53744 KB ok, correct split
12 Correct 1 ms 6492 KB ok, correct split
13 Correct 1 ms 6492 KB ok, correct split
14 Correct 1 ms 6492 KB ok, correct split
15 Correct 70 ms 19404 KB ok, correct split
16 Correct 43 ms 13788 KB ok, correct split
17 Correct 84 ms 53564 KB ok, correct split
18 Correct 78 ms 41708 KB ok, correct split
19 Correct 68 ms 16504 KB ok, correct split
20 Correct 46 ms 15476 KB ok, correct split
21 Correct 32 ms 13248 KB ok, correct split
22 Correct 36 ms 12876 KB ok, correct split
23 Correct 32 ms 12832 KB ok, correct split
24 Correct 2 ms 6488 KB ok, correct split
25 Correct 49 ms 13784 KB ok, correct split
26 Correct 16 ms 9564 KB ok, correct split
27 Correct 1 ms 6492 KB ok, correct split
28 Correct 71 ms 27472 KB ok, correct split
29 Correct 63 ms 26392 KB ok, correct split
30 Correct 71 ms 25428 KB ok, correct split
31 Correct 75 ms 32016 KB ok, correct split
32 Correct 79 ms 24576 KB ok, correct split
33 Correct 15 ms 9052 KB ok, no valid answer
34 Correct 23 ms 10220 KB ok, no valid answer
35 Correct 51 ms 15056 KB ok, no valid answer
36 Correct 53 ms 13924 KB ok, no valid answer
37 Correct 57 ms 16720 KB ok, no valid answer
38 Correct 1 ms 6492 KB ok, correct split
39 Correct 1 ms 6492 KB ok, no valid answer
40 Correct 1 ms 6492 KB ok, correct split
41 Correct 2 ms 6492 KB ok, correct split
42 Correct 1 ms 6492 KB ok, correct split
43 Correct 1 ms 6488 KB ok, correct split
44 Correct 1 ms 6492 KB ok, correct split
45 Correct 1 ms 6492 KB ok, correct split
46 Correct 3 ms 7004 KB ok, correct split
47 Correct 3 ms 6748 KB ok, correct split
48 Correct 1 ms 6580 KB ok, correct split
49 Correct 3 ms 7000 KB ok, correct split
50 Correct 1 ms 6492 KB ok, correct split
51 Correct 1 ms 6492 KB ok, correct split
52 Correct 1 ms 6492 KB ok, correct split
53 Correct 2 ms 6492 KB ok, correct split
54 Correct 1 ms 6492 KB ok, correct split
55 Correct 1 ms 6492 KB ok, correct split
56 Correct 1 ms 6492 KB ok, correct split
57 Correct 2 ms 6744 KB ok, correct split
58 Correct 2 ms 7004 KB ok, correct split
59 Correct 2 ms 7004 KB ok, correct split
60 Correct 2 ms 7260 KB ok, correct split
61 Correct 2 ms 7004 KB ok, correct split
62 Correct 2 ms 7004 KB ok, correct split
63 Correct 3 ms 6748 KB ok, correct split
64 Correct 3 ms 6748 KB ok, correct split
65 Correct 3 ms 6944 KB ok, correct split
66 Correct 1 ms 6492 KB ok, correct split
67 Correct 3 ms 6748 KB ok, correct split
68 Correct 2 ms 6492 KB ok, correct split
69 Correct 2 ms 6492 KB ok, correct split
70 Correct 2 ms 6492 KB ok, correct split
71 Correct 2 ms 6748 KB ok, correct split
72 Correct 2 ms 6748 KB ok, correct split
73 Correct 2 ms 6748 KB ok, correct split
74 Correct 3 ms 6748 KB ok, correct split
75 Correct 3 ms 7004 KB ok, correct split
76 Correct 3 ms 6744 KB ok, correct split
77 Correct 3 ms 6748 KB ok, correct split
78 Correct 2 ms 6748 KB ok, correct split
79 Correct 2 ms 6624 KB ok, correct split
80 Correct 3 ms 6748 KB ok, correct split
81 Correct 3 ms 6748 KB ok, correct split
82 Correct 3 ms 6748 KB ok, correct split
83 Correct 3 ms 7260 KB ok, correct split
84 Correct 2 ms 7004 KB ok, no valid answer
85 Correct 2 ms 6744 KB ok, correct split
86 Correct 3 ms 7260 KB ok, correct split
87 Correct 1 ms 6492 KB ok, no valid answer
88 Correct 1 ms 6492 KB ok, no valid answer
89 Correct 2 ms 6748 KB ok, no valid answer
90 Correct 3 ms 6800 KB ok, no valid answer
91 Correct 2 ms 6748 KB ok, no valid answer
92 Correct 3 ms 6748 KB ok, no valid answer
93 Correct 2 ms 6748 KB ok, no valid answer
94 Correct 78 ms 26028 KB ok, correct split
95 Correct 117 ms 39432 KB ok, correct split
96 Correct 110 ms 35868 KB ok, correct split
97 Correct 18 ms 9592 KB ok, correct split
98 Correct 23 ms 9776 KB ok, correct split
99 Correct 39 ms 15356 KB ok, correct split
100 Correct 83 ms 17832 KB ok, correct split
101 Correct 73 ms 17148 KB ok, correct split
102 Correct 76 ms 15516 KB ok, correct split
103 Correct 61 ms 15304 KB ok, correct split
104 Correct 67 ms 16276 KB ok, correct split
105 Correct 37 ms 11180 KB ok, correct split
106 Correct 97 ms 20420 KB ok, correct split
107 Correct 60 ms 13820 KB ok, correct split
108 Correct 59 ms 13784 KB ok, correct split
109 Correct 98 ms 16448 KB ok, correct split
110 Correct 104 ms 17212 KB ok, correct split
111 Correct 126 ms 17744 KB ok, correct split
112 Correct 91 ms 16084 KB ok, correct split
113 Correct 75 ms 15908 KB ok, correct split
114 Correct 9 ms 9048 KB ok, correct split
115 Correct 8 ms 8028 KB ok, correct split
116 Correct 85 ms 17372 KB ok, correct split
117 Correct 87 ms 17548 KB ok, correct split
118 Correct 61 ms 15820 KB ok, correct split
119 Correct 57 ms 15568 KB ok, correct split
120 Correct 78 ms 35408 KB ok, correct split
121 Correct 55 ms 13768 KB ok, no valid answer
122 Correct 70 ms 14084 KB ok, no valid answer
123 Correct 84 ms 18776 KB ok, no valid answer
124 Correct 100 ms 18192 KB ok, no valid answer
125 Correct 65 ms 16332 KB ok, no valid answer
126 Correct 57 ms 15696 KB ok, no valid answer
127 Correct 68 ms 16596 KB ok, no valid answer