oj.uz

Submission #305000

# Submission time Handle Problem Language Result Execution time Memory
305000 2020-09-22T11:19:48 Z Pajaraja Stations (IOI20_stations) C++17
100 / 100
 1228 ms 1280 KB 
#include "stations.h"
#include <bits/stdc++.h>
#define MAXN 1007
using namespace std;
static int lb[MAXN],t;
static vector<int> g[MAXN];
void dfs(int s,int f,int d)
{
    if(!d) lb[s]=t++;
    for(int i=0;i<g[s].size();i++) if(g[s][i]!=f) dfs(g[s][i],s,d^1);
    if(d) lb[s]=t++;
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	for(int i=0;i<n-1;i++) g[u[i]].push_back(v[i]);
	for(int i=0;i<n-1;i++) g[v[i]].push_back(u[i]);
	dfs(0,0,0); t=0;
	for(int i=0;i<n;i++) g[i].clear();
	std::vector<int> labels(n);
	for (int i = 0; i < n; i++) labels[i] = lb[i];
	return labels;
}
int find_next_station(int s, int t, std::vector<int> c)
{
    if(s<c[0])
    {
        sort(c.begin(),c.end());
        vector<int> aux;
        for(int i=0;i+1<c.size();i++) aux.push_back(c[i]);
        if(c.size()==1) return c[0];
		if(s==0) aux.push_back(c[c.size()-1]);
        if(t>s && t<=aux[0]) return aux[0];
        for(int i=1;i<aux.size();i++) if(t>aux[i-1] && t<=aux[i]) return aux[i];
        return c[c.size()-1];
    }
    else
    {
        sort(c.begin(),c.end());
        vector<int> aux;
        if(c.size()==1) return c[0];
        for(int i=1;i<c.size();i++) aux.push_back(c[i]);
        for(int i=0;i+1<aux.size();i++) if(t>=aux[i] && t<aux[i+1]) return aux[i];
        if(t<s && t>=aux[aux.size()-1]) return aux[aux.size()-1];
        return c[0];
    }
}

Compilation message

stations.cpp: In function 'void dfs(int, int, int)':
stations.cpp:10:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     for(int i=0;i<g[s].size();i++) if(g[s][i]!=f) dfs(g[s][i],s,d^1);
      |                 ~^~~~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:28:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         for(int i=0;i+1<c.size();i++) aux.push_back(c[i]);
      |                     ~~~^~~~~~~~~
stations.cpp:32:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |         for(int i=1;i<aux.size();i++) if(t>aux[i-1] && t<=aux[i]) return aux[i];
      |                     ~^~~~~~~~~~~
stations.cpp:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for(int i=1;i<c.size();i++) aux.push_back(c[i]);
      |                     ~^~~~~~~~~
stations.cpp:41:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |         for(int i=0;i+1<aux.size();i++) if(t>=aux[i] && t<aux[i+1]) return aux[i];
      |                     ~~~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 708 ms 1024 KB Output is correct
2 Correct 603 ms 1280 KB Output is correct
3 Correct 1124 ms 768 KB Output is correct
4 Correct 928 ms 768 KB Output is correct
5 Correct 795 ms 672 KB Output is correct
6 Correct 511 ms 1024 KB Output is correct
7 Correct 534 ms 896 KB Output is correct
8 Correct 3 ms 780 KB Output is correct
9 Correct 7 ms 768 KB Output is correct
10 Correct 1 ms 780 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 581 ms 896 KB Output is correct
2 Correct 573 ms 768 KB Output is correct
3 Correct 1025 ms 768 KB Output is correct
4 Correct 830 ms 896 KB Output is correct
5 Correct 625 ms 768 KB Output is correct
6 Correct 533 ms 820 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 761 ms 1028 KB Output is correct
2 Correct 628 ms 1032 KB Output is correct
3 Correct 1101 ms 884 KB Output is correct
4 Correct 830 ms 904 KB Output is correct
5 Correct 748 ms 808 KB Output is correct
6 Correct 545 ms 1024 KB Output is correct
7 Correct 496 ms 1024 KB Output is correct
8 Correct 3 ms 776 KB Output is correct
9 Correct 5 ms 680 KB Output is correct
10 Correct 2 ms 768 KB Output is correct
11 Correct 787 ms 896 KB Output is correct
12 Correct 659 ms 1032 KB Output is correct
13 Correct 580 ms 1136 KB Output is correct
14 Correct 526 ms 808 KB Output is correct
15 Correct 74 ms 768 KB Output is correct
16 Correct 69 ms 768 KB Output is correct
17 Correct 146 ms 896 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1228 ms 776 KB Output is correct
2 Correct 789 ms 896 KB Output is correct
3 Correct 667 ms 896 KB Output is correct
4 Correct 3 ms 896 KB Output is correct
5 Correct 5 ms 768 KB Output is correct
6 Correct 0 ms 872 KB Output is correct
7 Correct 634 ms 768 KB Output is correct
8 Correct 1059 ms 896 KB Output is correct
9 Correct 813 ms 784 KB Output is correct
10 Correct 696 ms 1024 KB Output is correct
11 Correct 8 ms 876 KB Output is correct
12 Correct 8 ms 768 KB Output is correct
13 Correct 7 ms 780 KB Output is correct
14 Correct 5 ms 800 KB Output is correct
15 Correct 2 ms 768 KB Output is correct
16 Correct 511 ms 896 KB Output is correct
17 Correct 733 ms 768 KB Output is correct
18 Correct 649 ms 768 KB Output is correct
19 Correct 605 ms 896 KB Output is correct
20 Correct 581 ms 768 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 650 ms 1048 KB Output is correct
2 Correct 544 ms 1008 KB Output is correct
3 Correct 1035 ms 776 KB Output is correct
4 Correct 723 ms 812 KB Output is correct
5 Correct 743 ms 776 KB Output is correct
6 Correct 569 ms 1048 KB Output is correct
7 Correct 557 ms 912 KB Output is correct
8 Correct 3 ms 768 KB Output is correct
9 Correct 7 ms 768 KB Output is correct
10 Correct 3 ms 776 KB Output is correct
11 Correct 552 ms 800 KB Output is correct
12 Correct 572 ms 908 KB Output is correct
13 Correct 1037 ms 928 KB Output is correct
14 Correct 756 ms 840 KB Output is correct
15 Correct 766 ms 792 KB Output is correct
16 Correct 510 ms 792 KB Output is correct
17 Correct 698 ms 900 KB Output is correct
18 Correct 519 ms 908 KB Output is correct
19 Correct 616 ms 1148 KB Output is correct
20 Correct 491 ms 768 KB Output is correct
21 Correct 58 ms 896 KB Output is correct
22 Correct 107 ms 768 KB Output is correct
23 Correct 106 ms 768 KB Output is correct
24 Correct 5 ms 768 KB Output is correct
25 Correct 5 ms 768 KB Output is correct
26 Correct 6 ms 896 KB Output is correct
27 Correct 4 ms 768 KB Output is correct
28 Correct 2 ms 768 KB Output is correct
29 Correct 592 ms 928 KB Output is correct
30 Correct 614 ms 928 KB Output is correct
31 Correct 622 ms 768 KB Output is correct
32 Correct 573 ms 768 KB Output is correct
33 Correct 650 ms 904 KB Output is correct
34 Correct 368 ms 1024 KB Output is correct
35 Correct 535 ms 1024 KB Output is correct
36 Correct 543 ms 1024 KB Output is correct
37 Correct 512 ms 1024 KB Output is correct
38 Correct 449 ms 976 KB Output is correct
39 Correct 434 ms 896 KB Output is correct
40 Correct 489 ms 888 KB Output is correct
41 Correct 599 ms 1104 KB Output is correct
42 Correct 98 ms 896 KB Output is correct
43 Correct 140 ms 896 KB Output is correct
44 Correct 179 ms 1024 KB Output is correct
45 Correct 229 ms 1024 KB Output is correct
46 Correct 396 ms 896 KB Output is correct
47 Correct 453 ms 768 KB Output is correct
48 Correct 66 ms 896 KB Output is correct
49 Correct 77 ms 1008 KB Output is correct