oj.uz

Submission #321905

# Submission time Handle Problem Language Result Execution time Memory
321905 2020-11-13T13:55:40 Z wildturtle Stations (IOI20_stations) C++14
100 / 100
 1220 ms 24668 KB 
#include "stations.h"
#include<bits/stdc++.h>
using namespace std;
int A[500005],l,in[500005],out[500005],don[500005],mp[500005];
vector <int> v1[500005];
vector <int> labels;
void dfs(int x,int y,int z) {
    l++; 
    in[x]=l;
    don[x]=z;
    for(int i=0;i<v1[x].size();i++) {
        if(v1[x][i]==y) continue;
        dfs(v1[x][i],x,z+1);
    }
    l++;
    out[x]=l;
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	labels.clear();
	labels.resize(n);
	for(int i=0;i<n;i++) {
	v1[i].clear();
	}
    l=0;
	for(int i=0;i<n-1;i++) {
	    v1[u[i]].push_back(v[i]);
	    v1[v[i]].push_back(u[i]);
	}
	dfs(0,-1,0);
	for(int i=0;i<n;i++) {
	    if(don[i]%2==0) A[i]=in[i];
	    else A[i]=out[i];
	}
	sort(A,A+n);
	for(int i=0;i<n;i++) {
	    mp[A[i]]=i;
	}
	for(int i=0;i<n;i++) {
	    if(don[i]%2==0) labels[i]=mp[in[i]];
	    else labels[i]=mp[out[i]];
	}
	return labels;
}
int find_next_station(int s, int t, std::vector<int> c) {
    if(s<c[0]) {
        for(int i=0;i<c.size()-1;i++) {
            if(i==0) {
                if(s+1<=t && t<=c[i]) return c[i];
            }
            else if(c[i-1]+1<=t && t<=c[i]) return c[i];
        }
        return c[c.size()-1];
    }
    else {
        for(int i=0;i<c.size();i++) {
            if(i==c.size()-1) {
                if(c[i]<=t && t<=s-1) return c[i];
            }
            else if(c[i]<=t && t<=c[i+1]-1) return c[i];
        }
        return c[0];
    }
}

Compilation message

stations.cpp: In function 'void dfs(int, int, int)':
stations.cpp:11:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for(int i=0;i<v1[x].size();i++) {
      |                 ~^~~~~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:46:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for(int i=0;i<c.size()-1;i++) {
      |                     ~^~~~~~~~~~~
stations.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for(int i=0;i<c.size();i++) {
      |                     ~^~~~~~~~~
stations.cpp:56:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |             if(i==c.size()-1) {
      |                ~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 583 ms 24648 KB Output is correct
2 Correct 477 ms 24508 KB Output is correct
3 Correct 945 ms 24288 KB Output is correct
4 Correct 745 ms 24288 KB Output is correct
5 Correct 763 ms 24288 KB Output is correct
6 Correct 555 ms 24416 KB Output is correct
7 Correct 598 ms 24416 KB Output is correct
8 Correct 23 ms 24528 KB Output is correct
9 Correct 22 ms 24288 KB Output is correct
10 Correct 18 ms 24288 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 510 ms 24288 KB Output is correct
2 Correct 613 ms 24288 KB Output is correct
3 Correct 1073 ms 24288 KB Output is correct
4 Correct 856 ms 24568 KB Output is correct
5 Correct 677 ms 24288 KB Output is correct
6 Correct 491 ms 24288 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 619 ms 24416 KB Output is correct
2 Correct 598 ms 24508 KB Output is correct
3 Correct 1016 ms 24288 KB Output is correct
4 Correct 703 ms 24288 KB Output is correct
5 Correct 731 ms 24268 KB Output is correct
6 Correct 547 ms 24416 KB Output is correct
7 Correct 508 ms 24420 KB Output is correct
8 Correct 20 ms 24288 KB Output is correct
9 Correct 20 ms 24476 KB Output is correct
10 Correct 19 ms 24288 KB Output is correct
11 Correct 798 ms 24308 KB Output is correct
12 Correct 562 ms 24444 KB Output is correct
13 Correct 524 ms 24416 KB Output is correct
14 Correct 424 ms 24436 KB Output is correct
15 Correct 72 ms 24288 KB Output is correct
16 Correct 96 ms 24288 KB Output is correct
17 Correct 149 ms 24288 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1220 ms 24288 KB Output is correct
2 Correct 906 ms 24416 KB Output is correct
3 Correct 907 ms 24288 KB Output is correct
4 Correct 22 ms 24288 KB Output is correct
5 Correct 19 ms 24288 KB Output is correct
6 Correct 20 ms 24288 KB Output is correct
7 Correct 814 ms 24288 KB Output is correct
8 Correct 1132 ms 24288 KB Output is correct
9 Correct 815 ms 24288 KB Output is correct
10 Correct 607 ms 24288 KB Output is correct
11 Correct 22 ms 24288 KB Output is correct
12 Correct 24 ms 24288 KB Output is correct
13 Correct 23 ms 24288 KB Output is correct
14 Correct 19 ms 24288 KB Output is correct
15 Correct 19 ms 24288 KB Output is correct
16 Correct 683 ms 24448 KB Output is correct
17 Correct 502 ms 24288 KB Output is correct
18 Correct 560 ms 24424 KB Output is correct
19 Correct 624 ms 24288 KB Output is correct
20 Correct 592 ms 24288 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 607 ms 24428 KB Output is correct
2 Correct 510 ms 24416 KB Output is correct
3 Correct 1043 ms 24288 KB Output is correct
4 Correct 798 ms 24288 KB Output is correct
5 Correct 756 ms 24444 KB Output is correct
6 Correct 511 ms 24416 KB Output is correct
7 Correct 542 ms 24288 KB Output is correct
8 Correct 19 ms 24288 KB Output is correct
9 Correct 22 ms 24412 KB Output is correct
10 Correct 20 ms 24288 KB Output is correct
11 Correct 511 ms 24424 KB Output is correct
12 Correct 681 ms 24280 KB Output is correct
13 Correct 1029 ms 24268 KB Output is correct
14 Correct 750 ms 24300 KB Output is correct
15 Correct 743 ms 24268 KB Output is correct
16 Correct 540 ms 24352 KB Output is correct
17 Correct 646 ms 24268 KB Output is correct
18 Correct 592 ms 24508 KB Output is correct
19 Correct 610 ms 24544 KB Output is correct
20 Correct 623 ms 24288 KB Output is correct
21 Correct 79 ms 24588 KB Output is correct
22 Correct 102 ms 24288 KB Output is correct
23 Correct 128 ms 24444 KB Output is correct
24 Correct 26 ms 24288 KB Output is correct
25 Correct 20 ms 24288 KB Output is correct
26 Correct 24 ms 24444 KB Output is correct
27 Correct 20 ms 24288 KB Output is correct
28 Correct 19 ms 24288 KB Output is correct
29 Correct 532 ms 24268 KB Output is correct
30 Correct 720 ms 24288 KB Output is correct
31 Correct 552 ms 24288 KB Output is correct
32 Correct 654 ms 24288 KB Output is correct
33 Correct 645 ms 24288 KB Output is correct
34 Correct 359 ms 24452 KB Output is correct
35 Correct 527 ms 24508 KB Output is correct
36 Correct 638 ms 24504 KB Output is correct
37 Correct 587 ms 24396 KB Output is correct
38 Correct 601 ms 24508 KB Output is correct
39 Correct 448 ms 24572 KB Output is correct
40 Correct 559 ms 24612 KB Output is correct
41 Correct 626 ms 24668 KB Output is correct
42 Correct 97 ms 24288 KB Output is correct
43 Correct 157 ms 24428 KB Output is correct
44 Correct 189 ms 24288 KB Output is correct
45 Correct 193 ms 24464 KB Output is correct
46 Correct 385 ms 24444 KB Output is correct
47 Correct 365 ms 24288 KB Output is correct
48 Correct 107 ms 24436 KB Output is correct
49 Correct 83 ms 24416 KB Output is correct