oj.uz

Submission #297475

# Submission time Handle Problem Language Result Execution time Memory
297475 2020-09-11T15:14:22 Z amoo_safar Split the Attractions (IOI19_split) C++17
100 / 100
 206 ms 27768 KB 
#include "split.h"


#include <bits/stdc++.h>

#define pb push_back
#define F first
#define S second
#define all(x) x.begin(), x.end();

using namespace std;

typedef long long ll;

const int N = 2e5 + 10;

int cm[] = {0, 1, 2, 3};

vector<int> G[N], T[N];
int ans[N];
int mk[N];
int sub[N];

void Prep(int u){
	mk[u] = 1;
	sub[u] = 1;
	for(auto adj : G[u]){
		if(!mk[adj]){
			Prep(adj);
			sub[u] += sub[adj];
			T[u].pb(adj);
			T[adj].pb(u);
		}
	}
}

void DFS(int u, int p = -1){
	sub[u] = 1;
	for(auto adj : T[u]){
		if(adj != p){
			DFS(adj, u);
			sub[u] += sub[adj];
		}
	}
}

int Find(int u, int rq, int col){
	rq --;
	ans[u] = col;
	mk[u] = 1;
	if(!rq) return 0;
	for(auto adj : T[u]){
		if(mk[adj])
			continue;
		rq = Find(adj, rq, col);
		if(!rq) break;
	}
	return rq;
}

////////////////
vector<int> vis;
int Find2(int u, int rq, int col){
	vis.pb(u);
	rq --;
	ans[u] = col;
	mk[u] = 1;
	if(!rq) return 0;
	for(auto adj : T[u]){
		if(mk[adj])
			continue;
		rq = Find2(adj, rq, col);
		if(!rq) break;
	}
	if(!rq) return 0;
	for(auto adj : G[u]){
		if(mk[adj])
			continue;
		rq = Find2(adj, rq, col);
		if(!rq) break;
	}
	return rq;
}

vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {
	if(a > b) swap(a, b), swap(cm[1], cm[2]);
	if(a > c) swap(a, c), swap(cm[1], cm[3]);
	if(b > c) swap(b, c), swap(cm[2], cm[3]);
	int m = p.size();

	for(int i = 0; i < m; i++){
		G[p[i]].pb(q[i]);
		G[q[i]].pb(p[i]);
	}
	Prep(0);
	int cen = 0, fnd = false;
	while(!fnd){
		fnd = true;
		for(auto adj : T[cen]){
			if(sub[adj] < sub[cen] && sub[adj] + sub[adj] >= n){
				fnd = false;
				cen = adj;
				break;
			}
		}
	}
	DFS(cen);
	memset(mk, 0, sizeof mk);

	vector<int> split(n, 0);
	for(auto son : T[cen]){
		if(sub[son] >= a){
			mk[cen] = 1;
			assert( Find(son, a, cm[1]) == 0 );
			mk[cen] = 0;
			assert(	Find(cen, b, cm[2]) == 0 );
			for(int i = 0; i < n; i++){
				if(c && ans[i] == 0){
					ans[i] = cm[3];
					c --;
				}
				split[i] = ans[i];
			}
			return split;
		}
	}
	/////////////////////
	memset(mk, 0, sizeof mk);
	
	mk[cen] = 1;

	for(auto son : T[cen]){
		if(mk[son]) continue;
		vis.clear();
		int rq = Find2(son, a, cm[1]);
		if(rq) continue;
		memset(mk, 0, sizeof mk);
		for(auto x : vis){
			ans[x] = cm[1];
			mk[x] = 1;
		}
		mk[cen] = 0;
		assert(Find(cen, b, cm[2]) == 0);
		for(int i = 0; i < n; i++){
			if(c && ans[i] == 0){
				ans[i] = cm[3];
				c --;
			}
			split[i] = ans[i];
		}
		return split;
	}
	return split;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 10496 KB ok, correct split
2 Correct 7 ms 10496 KB ok, correct split
3 Correct 7 ms 10496 KB ok, correct split
4 Correct 7 ms 10496 KB ok, correct split
5 Correct 7 ms 10496 KB ok, correct split
6 Correct 8 ms 10496 KB ok, correct split
7 Correct 135 ms 25464 KB ok, correct split
8 Correct 129 ms 23672 KB ok, correct split
9 Correct 143 ms 23108 KB ok, correct split
10 Correct 149 ms 25720 KB ok, correct split
11 Correct 141 ms 25720 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10496 KB ok, correct split
2 Correct 7 ms 10496 KB ok, correct split
3 Correct 8 ms 10496 KB ok, correct split
4 Correct 168 ms 23416 KB ok, correct split
5 Correct 123 ms 19704 KB ok, correct split
6 Correct 129 ms 25724 KB ok, correct split
7 Correct 139 ms 23544 KB ok, correct split
8 Correct 184 ms 21496 KB ok, correct split
9 Correct 134 ms 19576 KB ok, correct split
10 Correct 84 ms 20408 KB ok, correct split
11 Correct 85 ms 20336 KB ok, correct split
12 Correct 88 ms 20364 KB ok, correct split

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10496 KB ok, correct split
2 Correct 123 ms 19852 KB ok, correct split
3 Correct 45 ms 14208 KB ok, correct split
4 Correct 8 ms 10496 KB ok, correct split
5 Correct 132 ms 21624 KB ok, correct split
6 Correct 142 ms 21468 KB ok, correct split
7 Correct 131 ms 21368 KB ok, correct split
8 Correct 137 ms 22296 KB ok, correct split
9 Correct 171 ms 21368 KB ok, correct split
10 Correct 42 ms 13640 KB ok, no valid answer
11 Correct 59 ms 15128 KB ok, no valid answer
12 Correct 118 ms 20216 KB ok, no valid answer
13 Correct 155 ms 19832 KB ok, no valid answer
14 Correct 89 ms 20336 KB ok, no valid answer

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 10496 KB ok, correct split
2 Correct 9 ms 10496 KB ok, no valid answer
3 Correct 7 ms 10496 KB ok, correct split
4 Correct 8 ms 10496 KB ok, correct split
5 Correct 8 ms 10496 KB ok, correct split
6 Correct 7 ms 10496 KB ok, correct split
7 Correct 7 ms 10496 KB ok, correct split
8 Correct 8 ms 10496 KB ok, correct split
9 Correct 10 ms 10752 KB ok, correct split
10 Correct 11 ms 10752 KB ok, correct split
11 Correct 9 ms 10624 KB ok, correct split
12 Correct 10 ms 10752 KB ok, correct split
13 Correct 8 ms 10496 KB ok, correct split
14 Correct 8 ms 10548 KB ok, correct split
15 Correct 8 ms 10496 KB ok, correct split
16 Correct 7 ms 10496 KB ok, correct split
17 Correct 7 ms 10496 KB ok, correct split
18 Correct 7 ms 10496 KB ok, correct split
19 Correct 8 ms 10496 KB ok, correct split
20 Correct 9 ms 10624 KB ok, correct split
21 Correct 9 ms 10752 KB ok, correct split
22 Correct 12 ms 10752 KB ok, correct split
23 Correct 9 ms 10752 KB ok, correct split
24 Correct 10 ms 10752 KB ok, correct split
25 Correct 9 ms 10752 KB ok, correct split
26 Correct 11 ms 10784 KB ok, correct split
27 Correct 10 ms 10880 KB ok, correct split
28 Correct 11 ms 10880 KB ok, correct split
29 Correct 9 ms 10496 KB ok, correct split
30 Correct 10 ms 10880 KB ok, correct split
31 Correct 8 ms 10624 KB ok, correct split
32 Correct 9 ms 10496 KB ok, correct split
33 Correct 8 ms 10496 KB ok, correct split
34 Correct 10 ms 10752 KB ok, correct split
35 Correct 10 ms 10752 KB ok, correct split
36 Correct 9 ms 10880 KB ok, correct split
37 Correct 10 ms 10880 KB ok, correct split
38 Correct 10 ms 10880 KB ok, correct split
39 Correct 10 ms 10880 KB ok, correct split
40 Correct 10 ms 10880 KB ok, correct split
41 Correct 9 ms 10624 KB ok, correct split
42 Correct 9 ms 10624 KB ok, correct split
43 Correct 10 ms 10880 KB ok, correct split
44 Correct 11 ms 10880 KB ok, correct split
45 Correct 10 ms 10880 KB ok, correct split
46 Correct 9 ms 10880 KB ok, correct split
47 Correct 9 ms 10880 KB ok, no valid answer
48 Correct 10 ms 10752 KB ok, correct split
49 Correct 11 ms 10880 KB ok, correct split
50 Correct 7 ms 10496 KB ok, no valid answer
51 Correct 7 ms 10496 KB ok, no valid answer
52 Correct 9 ms 10880 KB ok, no valid answer
53 Correct 11 ms 10880 KB ok, no valid answer
54 Correct 9 ms 10752 KB ok, no valid answer
55 Correct 10 ms 10880 KB ok, no valid answer
56 Correct 10 ms 10752 KB ok, no valid answer

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 10496 KB ok, correct split
2 Correct 7 ms 10496 KB ok, correct split
3 Correct 7 ms 10496 KB ok, correct split
4 Correct 7 ms 10496 KB ok, correct split
5 Correct 7 ms 10496 KB ok, correct split
6 Correct 8 ms 10496 KB ok, correct split
7 Correct 135 ms 25464 KB ok, correct split
8 Correct 129 ms 23672 KB ok, correct split
9 Correct 143 ms 23108 KB ok, correct split
10 Correct 149 ms 25720 KB ok, correct split
11 Correct 141 ms 25720 KB ok, correct split
12 Correct 7 ms 10496 KB ok, correct split
13 Correct 7 ms 10496 KB ok, correct split
14 Correct 8 ms 10496 KB ok, correct split
15 Correct 168 ms 23416 KB ok, correct split
16 Correct 123 ms 19704 KB ok, correct split
17 Correct 129 ms 25724 KB ok, correct split
18 Correct 139 ms 23544 KB ok, correct split
19 Correct 184 ms 21496 KB ok, correct split
20 Correct 134 ms 19576 KB ok, correct split
21 Correct 84 ms 20408 KB ok, correct split
22 Correct 85 ms 20336 KB ok, correct split
23 Correct 88 ms 20364 KB ok, correct split
24 Correct 7 ms 10496 KB ok, correct split
25 Correct 123 ms 19852 KB ok, correct split
26 Correct 45 ms 14208 KB ok, correct split
27 Correct 8 ms 10496 KB ok, correct split
28 Correct 132 ms 21624 KB ok, correct split
29 Correct 142 ms 21468 KB ok, correct split
30 Correct 131 ms 21368 KB ok, correct split
31 Correct 137 ms 22296 KB ok, correct split
32 Correct 171 ms 21368 KB ok, correct split
33 Correct 42 ms 13640 KB ok, no valid answer
34 Correct 59 ms 15128 KB ok, no valid answer
35 Correct 118 ms 20216 KB ok, no valid answer
36 Correct 155 ms 19832 KB ok, no valid answer
37 Correct 89 ms 20336 KB ok, no valid answer
38 Correct 8 ms 10496 KB ok, correct split
39 Correct 9 ms 10496 KB ok, no valid answer
40 Correct 7 ms 10496 KB ok, correct split
41 Correct 8 ms 10496 KB ok, correct split
42 Correct 8 ms 10496 KB ok, correct split
43 Correct 7 ms 10496 KB ok, correct split
44 Correct 7 ms 10496 KB ok, correct split
45 Correct 8 ms 10496 KB ok, correct split
46 Correct 10 ms 10752 KB ok, correct split
47 Correct 11 ms 10752 KB ok, correct split
48 Correct 9 ms 10624 KB ok, correct split
49 Correct 10 ms 10752 KB ok, correct split
50 Correct 8 ms 10496 KB ok, correct split
51 Correct 8 ms 10548 KB ok, correct split
52 Correct 8 ms 10496 KB ok, correct split
53 Correct 7 ms 10496 KB ok, correct split
54 Correct 7 ms 10496 KB ok, correct split
55 Correct 7 ms 10496 KB ok, correct split
56 Correct 8 ms 10496 KB ok, correct split
57 Correct 9 ms 10624 KB ok, correct split
58 Correct 9 ms 10752 KB ok, correct split
59 Correct 12 ms 10752 KB ok, correct split
60 Correct 9 ms 10752 KB ok, correct split
61 Correct 10 ms 10752 KB ok, correct split
62 Correct 9 ms 10752 KB ok, correct split
63 Correct 11 ms 10784 KB ok, correct split
64 Correct 10 ms 10880 KB ok, correct split
65 Correct 11 ms 10880 KB ok, correct split
66 Correct 9 ms 10496 KB ok, correct split
67 Correct 10 ms 10880 KB ok, correct split
68 Correct 8 ms 10624 KB ok, correct split
69 Correct 9 ms 10496 KB ok, correct split
70 Correct 8 ms 10496 KB ok, correct split
71 Correct 10 ms 10752 KB ok, correct split
72 Correct 10 ms 10752 KB ok, correct split
73 Correct 9 ms 10880 KB ok, correct split
74 Correct 10 ms 10880 KB ok, correct split
75 Correct 10 ms 10880 KB ok, correct split
76 Correct 10 ms 10880 KB ok, correct split
77 Correct 10 ms 10880 KB ok, correct split
78 Correct 9 ms 10624 KB ok, correct split
79 Correct 9 ms 10624 KB ok, correct split
80 Correct 10 ms 10880 KB ok, correct split
81 Correct 11 ms 10880 KB ok, correct split
82 Correct 10 ms 10880 KB ok, correct split
83 Correct 9 ms 10880 KB ok, correct split
84 Correct 9 ms 10880 KB ok, no valid answer
85 Correct 10 ms 10752 KB ok, correct split
86 Correct 11 ms 10880 KB ok, correct split
87 Correct 7 ms 10496 KB ok, no valid answer
88 Correct 7 ms 10496 KB ok, no valid answer
89 Correct 9 ms 10880 KB ok, no valid answer
90 Correct 11 ms 10880 KB ok, no valid answer
91 Correct 9 ms 10752 KB ok, no valid answer
92 Correct 10 ms 10880 KB ok, no valid answer
93 Correct 10 ms 10752 KB ok, no valid answer
94 Correct 146 ms 23160 KB ok, correct split
95 Correct 197 ms 27768 KB ok, correct split
96 Correct 182 ms 26232 KB ok, correct split
97 Correct 45 ms 14584 KB ok, correct split
98 Correct 45 ms 14720 KB ok, correct split
99 Correct 68 ms 16760 KB ok, correct split
100 Correct 185 ms 24440 KB ok, correct split
101 Correct 163 ms 23288 KB ok, correct split
102 Correct 148 ms 23024 KB ok, correct split
103 Correct 145 ms 23024 KB ok, correct split
104 Correct 146 ms 24676 KB ok, correct split
105 Correct 78 ms 17144 KB ok, correct split
106 Correct 145 ms 24808 KB ok, correct split
107 Correct 153 ms 21240 KB ok, correct split
108 Correct 132 ms 21240 KB ok, correct split
109 Correct 192 ms 24184 KB ok, correct split
110 Correct 171 ms 24176 KB ok, correct split
111 Correct 183 ms 24432 KB ok, correct split
112 Correct 174 ms 24496 KB ok, correct split
113 Correct 169 ms 24560 KB ok, correct split
114 Correct 21 ms 12280 KB ok, correct split
115 Correct 21 ms 12032 KB ok, correct split
116 Correct 167 ms 23792 KB ok, correct split
117 Correct 171 ms 23920 KB ok, correct split
118 Correct 123 ms 20728 KB ok, correct split
119 Correct 135 ms 20860 KB ok, correct split
120 Correct 140 ms 23972 KB ok, correct split
121 Correct 132 ms 20856 KB ok, no valid answer
122 Correct 128 ms 21240 KB ok, no valid answer
123 Correct 204 ms 24568 KB ok, no valid answer
124 Correct 206 ms 24440 KB ok, no valid answer
125 Correct 124 ms 22256 KB ok, no valid answer
126 Correct 80 ms 20336 KB ok, no valid answer
127 Correct 147 ms 22640 KB ok, no valid answer