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Submission #893540

# Submission time Handle Problem Language Result Execution time Memory
893540 2023-12-27T06:37:13 Z MuhammadSaram Split the Attractions (IOI19_split) C++17
100 / 100
 89 ms 23932 KB 
#include <bits/stdc++.h>

using namespace std;

const int M = 1e5;

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

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]=(i==u);
		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;
		queue<int> q;
		ans[u]=col[0];
		for (int i:chi[u])
			if (vis[i])
				q.push(i);
		while (!q.empty() and cnt<a-1)
		{
			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:66:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |  for (int i=0;i<p.size();i++)
      |               ~^~~~~~~~~
split.cpp:94:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |   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 6232 KB ok, correct split
2 Correct 2 ms 6244 KB ok, correct split
3 Correct 2 ms 5980 KB ok, correct split
4 Correct 5 ms 5976 KB ok, correct split
5 Correct 3 ms 6236 KB ok, correct split
6 Correct 2 ms 6236 KB ok, correct split
7 Correct 78 ms 23420 KB ok, correct split
8 Correct 52 ms 21204 KB ok, correct split
9 Correct 54 ms 20428 KB ok, correct split
10 Correct 54 ms 23728 KB ok, correct split
11 Correct 57 ms 23932 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5980 KB ok, correct split
2 Correct 3 ms 6232 KB ok, correct split
3 Correct 2 ms 6236 KB ok, correct split
4 Correct 63 ms 20164 KB ok, correct split
5 Correct 44 ms 14540 KB ok, correct split
6 Correct 54 ms 23908 KB ok, correct split
7 Correct 60 ms 20888 KB ok, correct split
8 Correct 66 ms 18376 KB ok, correct split
9 Correct 46 ms 16076 KB ok, correct split
10 Correct 36 ms 13388 KB ok, correct split
11 Correct 32 ms 13392 KB ok, correct split
12 Correct 32 ms 13912 KB ok, correct split

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6236 KB ok, correct split
2 Correct 50 ms 14792 KB ok, correct split
3 Correct 21 ms 9688 KB ok, correct split
4 Correct 2 ms 6232 KB ok, correct split
5 Correct 56 ms 18772 KB ok, correct split
6 Correct 56 ms 18300 KB ok, correct split
7 Correct 81 ms 18212 KB ok, correct split
8 Correct 65 ms 19656 KB ok, correct split
9 Correct 55 ms 18132 KB ok, correct split
10 Correct 15 ms 8920 KB ok, no valid answer
11 Correct 21 ms 10452 KB ok, no valid answer
12 Correct 41 ms 14028 KB ok, no valid answer
13 Correct 43 ms 14804 KB ok, no valid answer
14 Correct 34 ms 13912 KB ok, no valid answer

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5980 KB ok, correct split
2 Correct 2 ms 6240 KB ok, no valid answer
3 Correct 2 ms 6236 KB ok, correct split
4 Correct 2 ms 6060 KB ok, correct split
5 Correct 2 ms 5980 KB ok, correct split
6 Correct 2 ms 6236 KB ok, correct split
7 Correct 2 ms 6204 KB ok, correct split
8 Correct 2 ms 5980 KB ok, correct split
9 Correct 3 ms 6504 KB ok, correct split
10 Correct 4 ms 6488 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 5980 KB ok, correct split
14 Correct 2 ms 6064 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 6232 KB ok, correct split
19 Correct 2 ms 6232 KB ok, correct split
20 Correct 2 ms 6236 KB ok, correct split
21 Correct 3 ms 6492 KB ok, correct split
22 Correct 3 ms 6492 KB ok, correct split
23 Correct 3 ms 6564 KB ok, correct split
24 Correct 3 ms 6492 KB ok, correct split
25 Correct 4 ms 6492 KB ok, correct split
26 Correct 3 ms 6492 KB ok, correct split
27 Correct 3 ms 6488 KB ok, correct split
28 Correct 3 ms 6308 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 6236 KB ok, correct split
34 Correct 3 ms 6232 KB ok, correct split
35 Correct 3 ms 6236 KB ok, correct split
36 Correct 3 ms 6236 KB ok, correct split
37 Correct 4 ms 6492 KB ok, correct split
38 Correct 3 ms 6492 KB ok, correct split
39 Correct 3 ms 6492 KB ok, correct split
40 Correct 3 ms 6492 KB ok, correct split
41 Correct 3 ms 6236 KB ok, correct split
42 Correct 3 ms 6236 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 2 ms 6492 KB ok, correct split
47 Correct 3 ms 6320 KB ok, no valid answer
48 Correct 3 ms 6236 KB ok, correct split
49 Correct 3 ms 6492 KB ok, correct split
50 Correct 2 ms 5980 KB ok, no valid answer
51 Correct 1 ms 5980 KB ok, no valid answer
52 Correct 3 ms 6236 KB ok, no valid answer
53 Correct 4 ms 6492 KB ok, no valid answer
54 Correct 2 ms 6248 KB ok, no valid answer
55 Correct 3 ms 6248 KB ok, no valid answer
56 Correct 3 ms 6244 KB ok, no valid answer

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6232 KB ok, correct split
2 Correct 2 ms 6244 KB ok, correct split
3 Correct 2 ms 5980 KB ok, correct split
4 Correct 5 ms 5976 KB ok, correct split
5 Correct 3 ms 6236 KB ok, correct split
6 Correct 2 ms 6236 KB ok, correct split
7 Correct 78 ms 23420 KB ok, correct split
8 Correct 52 ms 21204 KB ok, correct split
9 Correct 54 ms 20428 KB ok, correct split
10 Correct 54 ms 23728 KB ok, correct split
11 Correct 57 ms 23932 KB ok, correct split
12 Correct 2 ms 5980 KB ok, correct split
13 Correct 3 ms 6232 KB ok, correct split
14 Correct 2 ms 6236 KB ok, correct split
15 Correct 63 ms 20164 KB ok, correct split
16 Correct 44 ms 14540 KB ok, correct split
17 Correct 54 ms 23908 KB ok, correct split
18 Correct 60 ms 20888 KB ok, correct split
19 Correct 66 ms 18376 KB ok, correct split
20 Correct 46 ms 16076 KB ok, correct split
21 Correct 36 ms 13388 KB ok, correct split
22 Correct 32 ms 13392 KB ok, correct split
23 Correct 32 ms 13912 KB ok, correct split
24 Correct 2 ms 6236 KB ok, correct split
25 Correct 50 ms 14792 KB ok, correct split
26 Correct 21 ms 9688 KB ok, correct split
27 Correct 2 ms 6232 KB ok, correct split
28 Correct 56 ms 18772 KB ok, correct split
29 Correct 56 ms 18300 KB ok, correct split
30 Correct 81 ms 18212 KB ok, correct split
31 Correct 65 ms 19656 KB ok, correct split
32 Correct 55 ms 18132 KB ok, correct split
33 Correct 15 ms 8920 KB ok, no valid answer
34 Correct 21 ms 10452 KB ok, no valid answer
35 Correct 41 ms 14028 KB ok, no valid answer
36 Correct 43 ms 14804 KB ok, no valid answer
37 Correct 34 ms 13912 KB ok, no valid answer
38 Correct 2 ms 5980 KB ok, correct split
39 Correct 2 ms 6240 KB ok, no valid answer
40 Correct 2 ms 6236 KB ok, correct split
41 Correct 2 ms 6060 KB ok, correct split
42 Correct 2 ms 5980 KB ok, correct split
43 Correct 2 ms 6236 KB ok, correct split
44 Correct 2 ms 6204 KB ok, correct split
45 Correct 2 ms 5980 KB ok, correct split
46 Correct 3 ms 6504 KB ok, correct split
47 Correct 4 ms 6488 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 5980 KB ok, correct split
51 Correct 2 ms 6064 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 6232 KB ok, correct split
56 Correct 2 ms 6232 KB ok, correct split
57 Correct 2 ms 6236 KB ok, correct split
58 Correct 3 ms 6492 KB ok, correct split
59 Correct 3 ms 6492 KB ok, correct split
60 Correct 3 ms 6564 KB ok, correct split
61 Correct 3 ms 6492 KB ok, correct split
62 Correct 4 ms 6492 KB ok, correct split
63 Correct 3 ms 6492 KB ok, correct split
64 Correct 3 ms 6488 KB ok, correct split
65 Correct 3 ms 6308 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 6236 KB ok, correct split
71 Correct 3 ms 6232 KB ok, correct split
72 Correct 3 ms 6236 KB ok, correct split
73 Correct 3 ms 6236 KB ok, correct split
74 Correct 4 ms 6492 KB ok, correct split
75 Correct 3 ms 6492 KB ok, correct split
76 Correct 3 ms 6492 KB ok, correct split
77 Correct 3 ms 6492 KB ok, correct split
78 Correct 3 ms 6236 KB ok, correct split
79 Correct 3 ms 6236 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 2 ms 6492 KB ok, correct split
84 Correct 3 ms 6320 KB ok, no valid answer
85 Correct 3 ms 6236 KB ok, correct split
86 Correct 3 ms 6492 KB ok, correct split
87 Correct 2 ms 5980 KB ok, no valid answer
88 Correct 1 ms 5980 KB ok, no valid answer
89 Correct 3 ms 6236 KB ok, no valid answer
90 Correct 4 ms 6492 KB ok, no valid answer
91 Correct 2 ms 6248 KB ok, no valid answer
92 Correct 3 ms 6248 KB ok, no valid answer
93 Correct 3 ms 6244 KB ok, no valid answer
94 Correct 55 ms 16340 KB ok, correct split
95 Correct 89 ms 21032 KB ok, correct split
96 Correct 78 ms 19668 KB ok, correct split
97 Correct 18 ms 9304 KB ok, correct split
98 Correct 19 ms 9440 KB ok, correct split
99 Correct 30 ms 11380 KB ok, correct split
100 Correct 67 ms 16600 KB ok, correct split
101 Correct 62 ms 15820 KB ok, correct split
102 Correct 83 ms 15288 KB ok, correct split
103 Correct 57 ms 15028 KB ok, correct split
104 Correct 53 ms 15304 KB ok, correct split
105 Correct 28 ms 10708 KB ok, correct split
106 Correct 58 ms 14756 KB ok, correct split
107 Correct 47 ms 13524 KB ok, correct split
108 Correct 48 ms 13512 KB ok, correct split
109 Correct 74 ms 16040 KB ok, correct split
110 Correct 65 ms 16844 KB ok, correct split
111 Correct 69 ms 16840 KB ok, correct split
112 Correct 63 ms 15556 KB ok, correct split
113 Correct 63 ms 15564 KB ok, correct split
114 Correct 10 ms 7380 KB ok, correct split
115 Correct 8 ms 7256 KB ok, correct split
116 Correct 75 ms 16856 KB ok, correct split
117 Correct 65 ms 16840 KB ok, correct split
118 Correct 46 ms 15048 KB ok, correct split
119 Correct 46 ms 14940 KB ok, correct split
120 Correct 55 ms 19048 KB ok, correct split
121 Correct 50 ms 13524 KB ok, no valid answer
122 Correct 43 ms 13516 KB ok, no valid answer
123 Correct 70 ms 16908 KB ok, no valid answer
124 Correct 77 ms 16588 KB ok, no valid answer
125 Correct 43 ms 14020 KB ok, no valid answer
126 Correct 33 ms 12108 KB ok, no valid answer
127 Correct 50 ms 14700 KB ok, no valid answer