oj.uz

Submission #617154

# Submission time Handle Problem Language Result Execution time Memory
617154 2022-08-01T09:06:44 Z chirathnirodha Stations (IOI20_stations) C++17
100 / 100
 1031 ms 932 KB 
#include "stations.h"
#include<bits/stdc++.h>
using namespace std;
#define PB push_back
#define MP make_pair
#define F first
#define S second 
vector<pair<int,int>> lab;
int in[1000],out[1000];
vector<int> ed[1000];
int cur;
void dfs(int x,int dep){
	in[x]=cur;cur++;
	for(int i=0;i<ed[x].size();i++){
		int y=ed[x][i];
		if(in[y]!=-1)continue;
		dfs(y,dep+1);
	}
	out[x]=cur;cur++;
	if(dep%2==0)lab.PB(MP(in[x],x));
	else lab.PB(MP(out[x],x));
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	memset(in,-1,sizeof(in));
	memset(out,-1,sizeof(out));
	lab.clear();
	for(int i=0;i<n;i++)ed[i].clear();
	for(int i=0;i<n-1;i++){
		ed[u[i]].PB(v[i]);
		ed[v[i]].PB(u[i]);
	}
	cur=0;
	dfs(0,0);
	sort(lab.begin(),lab.end());
	vector<int> labels(n);
	for(int i=0;i<n;i++){
		labels[lab[i].S]=i;
	}
	return labels;
}
 
int find_next_station(int s, int t, vector<int> c) {
	sort(c.begin(),c.end());
	if(s<c[0]){
		int par=c.back();
		if(s!=0)c.pop_back();
		if(t<s)return par;
		for(int i=0;i<c.size();i++){
			if(t<=c[i])return c[i];
		}
		return par;
	}
	else{
		if(t>s)return c[0];
		for(int i=c.size()-1;i>0;i--){
			if(t>=c[i])return c[i];
		}
		return c[0];
	}
	return c[0];
}

Compilation message

stations.cpp: In function 'void dfs(int, int)':
stations.cpp:14:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |  for(int i=0;i<ed[x].size();i++){
      |              ~^~~~~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:48:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |   for(int i=0;i<c.size();i++){
      |               ~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 540 ms 664 KB Output is correct
2 Correct 436 ms 656 KB Output is correct
3 Correct 1031 ms 548 KB Output is correct
4 Correct 647 ms 532 KB Output is correct
5 Correct 523 ms 532 KB Output is correct
6 Correct 546 ms 788 KB Output is correct
7 Correct 449 ms 644 KB Output is correct
8 Correct 2 ms 500 KB Output is correct
9 Correct 4 ms 492 KB Output is correct
10 Correct 2 ms 492 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 442 ms 536 KB Output is correct
2 Correct 534 ms 536 KB Output is correct
3 Correct 849 ms 540 KB Output is correct
4 Correct 608 ms 416 KB Output is correct
5 Correct 582 ms 536 KB Output is correct
6 Correct 436 ms 544 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 495 ms 672 KB Output is correct
2 Correct 436 ms 648 KB Output is correct
3 Correct 847 ms 416 KB Output is correct
4 Correct 614 ms 524 KB Output is correct
5 Correct 526 ms 532 KB Output is correct
6 Correct 468 ms 652 KB Output is correct
7 Correct 455 ms 520 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 4 ms 492 KB Output is correct
10 Correct 1 ms 620 KB Output is correct
11 Correct 625 ms 536 KB Output is correct
12 Correct 403 ms 796 KB Output is correct
13 Correct 376 ms 800 KB Output is correct
14 Correct 465 ms 612 KB Output is correct
15 Correct 41 ms 612 KB Output is correct
16 Correct 56 ms 620 KB Output is correct
17 Correct 103 ms 532 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 857 ms 532 KB Output is correct
2 Correct 687 ms 420 KB Output is correct
3 Correct 473 ms 420 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 628 KB Output is correct
6 Correct 0 ms 504 KB Output is correct
7 Correct 591 ms 544 KB Output is correct
8 Correct 792 ms 420 KB Output is correct
9 Correct 694 ms 548 KB Output is correct
10 Correct 604 ms 748 KB Output is correct
11 Correct 6 ms 492 KB Output is correct
12 Correct 3 ms 496 KB Output is correct
13 Correct 4 ms 620 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 406 ms 416 KB Output is correct
17 Correct 514 ms 536 KB Output is correct
18 Correct 425 ms 416 KB Output is correct
19 Correct 513 ms 532 KB Output is correct
20 Correct 524 ms 528 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 567 ms 664 KB Output is correct
2 Correct 495 ms 640 KB Output is correct
3 Correct 910 ms 420 KB Output is correct
4 Correct 606 ms 524 KB Output is correct
5 Correct 604 ms 536 KB Output is correct
6 Correct 412 ms 756 KB Output is correct
7 Correct 393 ms 592 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 5 ms 620 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 372 ms 536 KB Output is correct
12 Correct 397 ms 548 KB Output is correct
13 Correct 863 ms 484 KB Output is correct
14 Correct 552 ms 416 KB Output is correct
15 Correct 549 ms 420 KB Output is correct
16 Correct 411 ms 524 KB Output is correct
17 Correct 541 ms 420 KB Output is correct
18 Correct 521 ms 756 KB Output is correct
19 Correct 535 ms 932 KB Output is correct
20 Correct 419 ms 524 KB Output is correct
21 Correct 52 ms 624 KB Output is correct
22 Correct 54 ms 664 KB Output is correct
23 Correct 89 ms 696 KB Output is correct
24 Correct 6 ms 496 KB Output is correct
25 Correct 6 ms 500 KB Output is correct
26 Correct 4 ms 492 KB Output is correct
27 Correct 3 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 555 ms 564 KB Output is correct
30 Correct 481 ms 416 KB Output is correct
31 Correct 500 ms 528 KB Output is correct
32 Correct 607 ms 536 KB Output is correct
33 Correct 597 ms 416 KB Output is correct
34 Correct 372 ms 660 KB Output is correct
35 Correct 454 ms 788 KB Output is correct
36 Correct 349 ms 804 KB Output is correct
37 Correct 410 ms 628 KB Output is correct
38 Correct 411 ms 644 KB Output is correct
39 Correct 463 ms 772 KB Output is correct
40 Correct 444 ms 656 KB Output is correct
41 Correct 510 ms 720 KB Output is correct
42 Correct 54 ms 544 KB Output is correct
43 Correct 129 ms 656 KB Output is correct
44 Correct 142 ms 632 KB Output is correct
45 Correct 113 ms 612 KB Output is correct
46 Correct 267 ms 524 KB Output is correct
47 Correct 357 ms 660 KB Output is correct
48 Correct 52 ms 664 KB Output is correct
49 Correct 52 ms 752 KB Output is correct