oj.uz

Submission #341711

# Submission time Handle Problem Language Result Execution time Memory
341711 2020-12-30T14:18:37 Z ogibogi2004 Stations (IOI20_stations) C++14
100 / 100
 1174 ms 1252 KB 
#include "stations.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;
#define time afds
const int MAXN=1024;
vector<int>g[MAXN];
int depth[MAXN];
int in_time[MAXN],out_time[MAXN],time=-1;
void dfs(int u,int par)
{
	in_time[u]=++time;
	for(auto v:g[u])
	{
		if(v==par)continue;
		depth[v]=depth[u]+1;
		dfs(v,u);
	}
	out_time[u]=++time;
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	vector<int> labels(n);
	time=-1;
	memset(depth,-1,sizeof(depth));
	for(int i=0;i<=n;i++)g[i].clear();
	for(int i=0;i<u.size();i++)
	{
		g[u[i]].push_back(v[i]);
		g[v[i]].push_back(u[i]);
	}
	dfs(0,-1);
	set<int>l;
	map<int,int>mp;
	for (int i = 0; i < n; i++) {
		if(depth[i]%2==0)
		{
			labels[i]=in_time[i];
		}
		else labels[i]=out_time[i];
		l.insert(labels[i]);
	}
	int cnt=0;
	for(auto xd:l)
	{
		mp[xd]=cnt;++cnt;
	}
	for(int i=0;i<n;i++)
	{
		labels[i]=mp[labels[i]];
	}
	return labels;
}

int find_next_station(int s, int t, vector<int> c) {
	if(c.size()==1)return c[0];
	if(s<c[0])
	{
		if(t<s)
		{
			return c.back();
		}
		for(int i=0;i<c.size();i++)
		{
			if(c[i]>=t)return c[i];
		}
		return c.back();
	}
	else
	{
		if(t>s)
		{
			return c[0];
		}
		for(int i=c.size()-1;i>=0;i--)
		{
			if(c[i]<=t)return c[i];
		}
		return c[0];
	}
	return 0;
}

Compilation message

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:26:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |  for(int i=0;i<u.size();i++)
      |              ~^~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:62:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |   for(int i=0;i<c.size();i++)
      |               ~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 730 ms 1252 KB Output is correct
2 Correct 499 ms 992 KB Output is correct
3 Correct 891 ms 736 KB Output is correct
4 Correct 707 ms 992 KB Output is correct
5 Correct 579 ms 1120 KB Output is correct
6 Correct 611 ms 1248 KB Output is correct
7 Correct 533 ms 864 KB Output is correct
8 Correct 3 ms 940 KB Output is correct
9 Correct 5 ms 864 KB Output is correct
10 Correct 2 ms 880 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 529 ms 1048 KB Output is correct
2 Correct 625 ms 1052 KB Output is correct
3 Correct 936 ms 736 KB Output is correct
4 Correct 929 ms 864 KB Output is correct
5 Correct 807 ms 864 KB Output is correct
6 Correct 434 ms 992 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 587 ms 992 KB Output is correct
2 Correct 605 ms 864 KB Output is correct
3 Correct 1029 ms 940 KB Output is correct
4 Correct 745 ms 864 KB Output is correct
5 Correct 621 ms 940 KB Output is correct
6 Correct 523 ms 992 KB Output is correct
7 Correct 551 ms 992 KB Output is correct
8 Correct 4 ms 864 KB Output is correct
9 Correct 5 ms 904 KB Output is correct
10 Correct 1 ms 864 KB Output is correct
11 Correct 667 ms 940 KB Output is correct
12 Correct 605 ms 1236 KB Output is correct
13 Correct 478 ms 1120 KB Output is correct
14 Correct 428 ms 992 KB Output is correct
15 Correct 69 ms 924 KB Output is correct
16 Correct 86 ms 864 KB Output is correct
17 Correct 130 ms 992 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1061 ms 864 KB Output is correct
2 Correct 758 ms 940 KB Output is correct
3 Correct 649 ms 884 KB Output is correct
4 Correct 3 ms 980 KB Output is correct
5 Correct 5 ms 940 KB Output is correct
6 Correct 2 ms 940 KB Output is correct
7 Correct 679 ms 992 KB Output is correct
8 Correct 939 ms 940 KB Output is correct
9 Correct 903 ms 940 KB Output is correct
10 Correct 756 ms 896 KB Output is correct
11 Correct 7 ms 948 KB Output is correct
12 Correct 5 ms 864 KB Output is correct
13 Correct 5 ms 736 KB Output is correct
14 Correct 4 ms 948 KB Output is correct
15 Correct 2 ms 864 KB Output is correct
16 Correct 550 ms 864 KB Output is correct
17 Correct 569 ms 736 KB Output is correct
18 Correct 596 ms 864 KB Output is correct
19 Correct 631 ms 1108 KB Output is correct
20 Correct 657 ms 992 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 692 ms 1252 KB Output is correct
2 Correct 510 ms 996 KB Output is correct
3 Correct 1174 ms 940 KB Output is correct
4 Correct 891 ms 980 KB Output is correct
5 Correct 814 ms 864 KB Output is correct
6 Correct 441 ms 992 KB Output is correct
7 Correct 584 ms 1120 KB Output is correct
8 Correct 3 ms 896 KB Output is correct
9 Correct 4 ms 736 KB Output is correct
10 Correct 1 ms 736 KB Output is correct
11 Correct 439 ms 992 KB Output is correct
12 Correct 535 ms 864 KB Output is correct
13 Correct 957 ms 940 KB Output is correct
14 Correct 758 ms 992 KB Output is correct
15 Correct 674 ms 940 KB Output is correct
16 Correct 525 ms 1052 KB Output is correct
17 Correct 749 ms 940 KB Output is correct
18 Correct 604 ms 1004 KB Output is correct
19 Correct 535 ms 1120 KB Output is correct
20 Correct 426 ms 1180 KB Output is correct
21 Correct 66 ms 896 KB Output is correct
22 Correct 75 ms 992 KB Output is correct
23 Correct 106 ms 992 KB Output is correct
24 Correct 6 ms 736 KB Output is correct
25 Correct 6 ms 940 KB Output is correct
26 Correct 4 ms 940 KB Output is correct
27 Correct 4 ms 736 KB Output is correct
28 Correct 2 ms 776 KB Output is correct
29 Correct 652 ms 864 KB Output is correct
30 Correct 518 ms 940 KB Output is correct
31 Correct 717 ms 864 KB Output is correct
32 Correct 661 ms 1076 KB Output is correct
33 Correct 681 ms 948 KB Output is correct
34 Correct 292 ms 1004 KB Output is correct
35 Correct 603 ms 992 KB Output is correct
36 Correct 445 ms 992 KB Output is correct
37 Correct 447 ms 1020 KB Output is correct
38 Correct 440 ms 1020 KB Output is correct
39 Correct 463 ms 1248 KB Output is correct
40 Correct 445 ms 992 KB Output is correct
41 Correct 452 ms 1012 KB Output is correct
42 Correct 62 ms 1076 KB Output is correct
43 Correct 119 ms 864 KB Output is correct
44 Correct 138 ms 1040 KB Output is correct
45 Correct 146 ms 1020 KB Output is correct
46 Correct 321 ms 1072 KB Output is correct
47 Correct 330 ms 1236 KB Output is correct
48 Correct 70 ms 992 KB Output is correct
49 Correct 66 ms 1120 KB Output is correct