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Submission #893541

# Submission time Handle Problem Language Result Execution time Memory
893541 2023-12-27T06:38:23 Z MuhammadSaram Split the Attractions (IOI19_split) C++17
100 / 100
 88 ms 22740 KB 
#include <bits/stdc++.h>

using namespace std;

const int M = 1e5;

vector<int> nei[M],v;
bool vis[M];
int col[3],subt[M],dep[M],mndep[M],cnt;
vector<int> chi[M];
vector<int> ans;

void dfs(int u)
{
	vis[u]=true;
	subt[u]=1;
	mndep[u]=dep[u];
	for (int i:nei[u])
		if (!vis[i])
		{
			dep[i]=dep[u]+1;
			dfs(i);
			mndep[u]=min(mndep[u],mndep[i]);
			subt[u]+=subt[i];
			chi[u].push_back(i);
		}
		else
			mndep[u]=min(mndep[u],dep[i]);
}

void dfs1(int u)
{
	if (!cnt)
		return;
	vis[u]=true;
	ans[u]=col[1];
	cnt--;
	for (int i:nei[u])
		if (!vis[i])
			dfs1(i);
}

vector<int> find_split(int n,int a,int b,int c,vector<int> p,vector<int> q)
{
	for (int i=0;i<n;i++)
		ans.push_back(0);
	v={a,b,c};
	sort(v.begin(),v.end());
	for (int i=0;i<3;i++)
	{
		if (v[i]==a)
		{
			col[i]=1;
			a=-1;
		}
		else if(v[i]==b)
		{
			col[i]=2;
			b=-1;
		}
		else
		{
			col[i]=3;
			c=-1;
		}
	}
	a=v[0],b=v[1],c=v[2];
	for (int i=0;i<p.size();i++)
	{
		nei[p[i]].push_back(q[i]);
		nei[q[i]].push_back(p[i]);
	}
	dfs(0);
	int u=0;
	while (1)
	{
		bool x=false;
		for (int i:chi[u])
			if (subt[i]>=a)
			{
				u=i;
				x=true;
				break;
			}
		if (x)
			continue;
		for (int i=0;i<n;i++)
			vis[i]=false;
		int fsize=1;
		for (int i:chi[u])
			if (mndep[i]>=dep[u])
			{
				fsize+=subt[i];
				vis[i]=true;
			}
		for (int i=0;i<chi[u].size() and fsize<a;i++)
			if (mndep[chi[u][i]]<dep[u])
			{
				fsize+=subt[chi[u][i]];
				vis[chi[u][i]]=true;
			}
		if (fsize>=b and n-fsize>=a)
			swap(a,b),swap(col[0],col[1]);
		else if(n-fsize<b)
			break;
		cnt=1;
		queue<int> q;
		ans[u]=col[0];
		vis[u]=true;
		for (int i:chi[u])
			if (vis[i])
				q.push(i);
		while (!q.empty() and cnt<a)
		{
			int x=q.front();
			q.pop();
			vis[x]=true;
			cnt++;
			ans[x]=col[0];
			for (int i:chi[x])
				q.push(i);
		}
		cnt=b;
		dfs1(0);
		for (int i=0;i<n;i++)
			if (!ans[i])
				ans[i]=col[2];
		break;
	}
	return ans;
}

Compilation message

split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:68:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |  for (int i=0;i<p.size();i++)
      |               ~^~~~~~~~~
split.cpp:96:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |   for (int i=0;i<chi[u].size() and fsize<a;i++)
      |                ~^~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6236 KB ok, correct split
2 Correct 2 ms 6236 KB ok, correct split
3 Correct 2 ms 6236 KB ok, correct split
4 Correct 2 ms 6236 KB ok, correct split
5 Correct 2 ms 6236 KB ok, correct split
6 Correct 2 ms 6236 KB ok, correct split
7 Correct 60 ms 22220 KB ok, correct split
8 Correct 60 ms 20176 KB ok, correct split
9 Correct 88 ms 19404 KB ok, correct split
10 Correct 52 ms 22740 KB ok, correct split
11 Correct 58 ms 22728 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6236 KB ok, correct split
2 Correct 2 ms 6236 KB ok, correct split
3 Correct 2 ms 6236 KB ok, correct split
4 Correct 61 ms 18636 KB ok, correct split
5 Correct 46 ms 13512 KB ok, correct split
6 Correct 52 ms 22732 KB ok, correct split
7 Correct 58 ms 19912 KB ok, correct split
8 Correct 83 ms 16100 KB ok, correct split
9 Correct 65 ms 15052 KB ok, correct split
10 Correct 36 ms 12780 KB ok, correct split
11 Correct 33 ms 12632 KB ok, correct split
12 Correct 31 ms 12632 KB ok, correct split

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6232 KB ok, correct split
2 Correct 48 ms 13500 KB ok, correct split
3 Correct 17 ms 9176 KB ok, correct split
4 Correct 2 ms 6236 KB ok, correct split
5 Correct 51 ms 17364 KB ok, correct split
6 Correct 71 ms 17520 KB ok, correct split
7 Correct 50 ms 17096 KB ok, correct split
8 Correct 65 ms 18376 KB ok, correct split
9 Correct 52 ms 16948 KB ok, correct split
10 Correct 18 ms 8664 KB ok, no valid answer
11 Correct 20 ms 9940 KB ok, no valid answer
12 Correct 44 ms 12824 KB ok, no valid answer
13 Correct 43 ms 13348 KB ok, no valid answer
14 Correct 35 ms 12628 KB ok, no valid answer

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6236 KB ok, correct split
2 Correct 2 ms 6236 KB ok, no valid answer
3 Correct 2 ms 6236 KB ok, correct split
4 Correct 2 ms 6232 KB ok, correct split
5 Correct 2 ms 6236 KB ok, correct split
6 Correct 2 ms 6376 KB ok, correct split
7 Correct 2 ms 6236 KB ok, correct split
8 Correct 2 ms 6236 KB ok, correct split
9 Correct 4 ms 6492 KB ok, correct split
10 Correct 3 ms 6492 KB ok, correct split
11 Correct 2 ms 6236 KB ok, correct split
12 Correct 3 ms 6492 KB ok, correct split
13 Correct 2 ms 6236 KB ok, correct split
14 Correct 3 ms 6236 KB ok, correct split
15 Correct 2 ms 6232 KB ok, correct split
16 Correct 2 ms 6236 KB ok, correct split
17 Correct 2 ms 6236 KB ok, correct split
18 Correct 2 ms 6236 KB ok, correct split
19 Correct 2 ms 6236 KB ok, correct split
20 Correct 2 ms 6492 KB ok, correct split
21 Correct 3 ms 6492 KB ok, correct split
22 Correct 3 ms 6492 KB ok, correct split
23 Correct 2 ms 6492 KB ok, correct split
24 Correct 3 ms 6492 KB ok, correct split
25 Correct 3 ms 6492 KB ok, correct split
26 Correct 3 ms 6492 KB ok, correct split
27 Correct 3 ms 6492 KB ok, correct split
28 Correct 3 ms 6488 KB ok, correct split
29 Correct 2 ms 6236 KB ok, correct split
30 Correct 3 ms 6492 KB ok, correct split
31 Correct 2 ms 6236 KB ok, correct split
32 Correct 2 ms 6236 KB ok, correct split
33 Correct 2 ms 6232 KB ok, correct split
34 Correct 2 ms 6492 KB ok, correct split
35 Correct 3 ms 6492 KB ok, correct split
36 Correct 3 ms 6492 KB ok, correct split
37 Correct 4 ms 6492 KB ok, correct split
38 Correct 3 ms 6492 KB ok, correct split
39 Correct 4 ms 6492 KB ok, correct split
40 Correct 3 ms 6492 KB ok, correct split
41 Correct 2 ms 6492 KB ok, correct split
42 Correct 2 ms 6492 KB ok, correct split
43 Correct 3 ms 6492 KB ok, correct split
44 Correct 3 ms 6492 KB ok, correct split
45 Correct 3 ms 6492 KB ok, correct split
46 Correct 3 ms 6488 KB ok, correct split
47 Correct 2 ms 6492 KB ok, no valid answer
48 Correct 3 ms 6488 KB ok, correct split
49 Correct 3 ms 6492 KB ok, correct split
50 Correct 2 ms 6236 KB ok, no valid answer
51 Correct 2 ms 6236 KB ok, no valid answer
52 Correct 3 ms 6492 KB ok, no valid answer
53 Correct 3 ms 6492 KB ok, no valid answer
54 Correct 3 ms 6492 KB ok, no valid answer
55 Correct 3 ms 6492 KB ok, no valid answer
56 Correct 3 ms 6492 KB ok, no valid answer

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6236 KB ok, correct split
2 Correct 2 ms 6236 KB ok, correct split
3 Correct 2 ms 6236 KB ok, correct split
4 Correct 2 ms 6236 KB ok, correct split
5 Correct 2 ms 6236 KB ok, correct split
6 Correct 2 ms 6236 KB ok, correct split
7 Correct 60 ms 22220 KB ok, correct split
8 Correct 60 ms 20176 KB ok, correct split
9 Correct 88 ms 19404 KB ok, correct split
10 Correct 52 ms 22740 KB ok, correct split
11 Correct 58 ms 22728 KB ok, correct split
12 Correct 2 ms 6236 KB ok, correct split
13 Correct 2 ms 6236 KB ok, correct split
14 Correct 2 ms 6236 KB ok, correct split
15 Correct 61 ms 18636 KB ok, correct split
16 Correct 46 ms 13512 KB ok, correct split
17 Correct 52 ms 22732 KB ok, correct split
18 Correct 58 ms 19912 KB ok, correct split
19 Correct 83 ms 16100 KB ok, correct split
20 Correct 65 ms 15052 KB ok, correct split
21 Correct 36 ms 12780 KB ok, correct split
22 Correct 33 ms 12632 KB ok, correct split
23 Correct 31 ms 12632 KB ok, correct split
24 Correct 2 ms 6232 KB ok, correct split
25 Correct 48 ms 13500 KB ok, correct split
26 Correct 17 ms 9176 KB ok, correct split
27 Correct 2 ms 6236 KB ok, correct split
28 Correct 51 ms 17364 KB ok, correct split
29 Correct 71 ms 17520 KB ok, correct split
30 Correct 50 ms 17096 KB ok, correct split
31 Correct 65 ms 18376 KB ok, correct split
32 Correct 52 ms 16948 KB ok, correct split
33 Correct 18 ms 8664 KB ok, no valid answer
34 Correct 20 ms 9940 KB ok, no valid answer
35 Correct 44 ms 12824 KB ok, no valid answer
36 Correct 43 ms 13348 KB ok, no valid answer
37 Correct 35 ms 12628 KB ok, no valid answer
38 Correct 2 ms 6236 KB ok, correct split
39 Correct 2 ms 6236 KB ok, no valid answer
40 Correct 2 ms 6236 KB ok, correct split
41 Correct 2 ms 6232 KB ok, correct split
42 Correct 2 ms 6236 KB ok, correct split
43 Correct 2 ms 6376 KB ok, correct split
44 Correct 2 ms 6236 KB ok, correct split
45 Correct 2 ms 6236 KB ok, correct split
46 Correct 4 ms 6492 KB ok, correct split
47 Correct 3 ms 6492 KB ok, correct split
48 Correct 2 ms 6236 KB ok, correct split
49 Correct 3 ms 6492 KB ok, correct split
50 Correct 2 ms 6236 KB ok, correct split
51 Correct 3 ms 6236 KB ok, correct split
52 Correct 2 ms 6232 KB ok, correct split
53 Correct 2 ms 6236 KB ok, correct split
54 Correct 2 ms 6236 KB ok, correct split
55 Correct 2 ms 6236 KB ok, correct split
56 Correct 2 ms 6236 KB ok, correct split
57 Correct 2 ms 6492 KB ok, correct split
58 Correct 3 ms 6492 KB ok, correct split
59 Correct 3 ms 6492 KB ok, correct split
60 Correct 2 ms 6492 KB ok, correct split
61 Correct 3 ms 6492 KB ok, correct split
62 Correct 3 ms 6492 KB ok, correct split
63 Correct 3 ms 6492 KB ok, correct split
64 Correct 3 ms 6492 KB ok, correct split
65 Correct 3 ms 6488 KB ok, correct split
66 Correct 2 ms 6236 KB ok, correct split
67 Correct 3 ms 6492 KB ok, correct split
68 Correct 2 ms 6236 KB ok, correct split
69 Correct 2 ms 6236 KB ok, correct split
70 Correct 2 ms 6232 KB ok, correct split
71 Correct 2 ms 6492 KB ok, correct split
72 Correct 3 ms 6492 KB ok, correct split
73 Correct 3 ms 6492 KB ok, correct split
74 Correct 4 ms 6492 KB ok, correct split
75 Correct 3 ms 6492 KB ok, correct split
76 Correct 4 ms 6492 KB ok, correct split
77 Correct 3 ms 6492 KB ok, correct split
78 Correct 2 ms 6492 KB ok, correct split
79 Correct 2 ms 6492 KB ok, correct split
80 Correct 3 ms 6492 KB ok, correct split
81 Correct 3 ms 6492 KB ok, correct split
82 Correct 3 ms 6492 KB ok, correct split
83 Correct 3 ms 6488 KB ok, correct split
84 Correct 2 ms 6492 KB ok, no valid answer
85 Correct 3 ms 6488 KB ok, correct split
86 Correct 3 ms 6492 KB ok, correct split
87 Correct 2 ms 6236 KB ok, no valid answer
88 Correct 2 ms 6236 KB ok, no valid answer
89 Correct 3 ms 6492 KB ok, no valid answer
90 Correct 3 ms 6492 KB ok, no valid answer
91 Correct 3 ms 6492 KB ok, no valid answer
92 Correct 3 ms 6492 KB ok, no valid answer
93 Correct 3 ms 6492 KB ok, no valid answer
94 Correct 66 ms 16332 KB ok, correct split
95 Correct 79 ms 20940 KB ok, correct split
96 Correct 73 ms 19656 KB ok, correct split
97 Correct 18 ms 9176 KB ok, correct split
98 Correct 18 ms 9432 KB ok, correct split
99 Correct 29 ms 11344 KB ok, correct split
100 Correct 76 ms 16528 KB ok, correct split
101 Correct 63 ms 16088 KB ok, correct split
102 Correct 63 ms 15284 KB ok, correct split
103 Correct 56 ms 14948 KB ok, correct split
104 Correct 54 ms 15048 KB ok, correct split
105 Correct 29 ms 10712 KB ok, correct split
106 Correct 55 ms 14536 KB ok, correct split
107 Correct 51 ms 13536 KB ok, correct split
108 Correct 54 ms 13436 KB ok, correct split
109 Correct 72 ms 16068 KB ok, correct split
110 Correct 73 ms 16764 KB ok, correct split
111 Correct 78 ms 16996 KB ok, correct split
112 Correct 67 ms 15564 KB ok, correct split
113 Correct 63 ms 15444 KB ok, correct split
114 Correct 8 ms 7516 KB ok, correct split
115 Correct 8 ms 7260 KB ok, correct split
116 Correct 73 ms 16796 KB ok, correct split
117 Correct 70 ms 16808 KB ok, correct split
118 Correct 45 ms 15052 KB ok, correct split
119 Correct 49 ms 15004 KB ok, correct split
120 Correct 52 ms 19144 KB ok, correct split
121 Correct 42 ms 13524 KB ok, no valid answer
122 Correct 41 ms 13524 KB ok, no valid answer
123 Correct 68 ms 16848 KB ok, no valid answer
124 Correct 66 ms 16720 KB ok, no valid answer
125 Correct 41 ms 14008 KB ok, no valid answer
126 Correct 30 ms 12112 KB ok, no valid answer
127 Correct 49 ms 14792 KB ok, no valid answer