oj.uz

Submission #421357

# Submission time Handle Problem Language Result Execution time Memory
421357 2021-06-09T05:33:07 Z Trunkty Stations (IOI20_stations) C++14
100 / 100
 1057 ms 888 KB 
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int nextnum;
int arr[1005];
vector<int> pairs[1005];

void dfs(int par, int a, int dep){
	if(dep%2){
		arr[a] = nextnum;
		nextnum++;
	}
	for(int i:pairs[a]){
		if(i!=par){
			dfs(a,i,dep+1);
		}
	}
	if(dep%2==0){
		arr[a] = nextnum;
		nextnum++;
	}
}

vector<int> label(int n, int k, vector<int> u, vector<int> v){
	nextnum = 0;
	for(int i=0;i<n;i++){
		pairs[i].clear();
	}
	for(int i=0;i<n-1;i++){
		pairs[u[i]].push_back(v[i]);
		pairs[v[i]].push_back(u[i]);
	}
	dfs(-1,0,1);
	vector<int> ans;
	for(int i=0;i<n;i++){
		ans.push_back(arr[i]);
	}
	return ans;
}

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

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:61:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |    for(int i=0;i<c.size()-1;i++){
      |                ~^~~~~~~~~~~
stations.cpp:72:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |    for(int i=0;i<c.size()-1;i++){
      |                ~^~~~~~~~~~~
stations.cpp:80:1: warning: control reaches end of non-void function [-Wreturn-type]
   80 | }
      | ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 670 ms 660 KB Output is correct
2 Correct 541 ms 636 KB Output is correct
3 Correct 1005 ms 492 KB Output is correct
4 Correct 723 ms 584 KB Output is correct
5 Correct 724 ms 400 KB Output is correct
6 Correct 567 ms 512 KB Output is correct
7 Correct 567 ms 508 KB Output is correct
8 Correct 3 ms 468 KB Output is correct
9 Correct 5 ms 480 KB Output is correct
10 Correct 2 ms 464 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 495 ms 508 KB Output is correct
2 Correct 562 ms 528 KB Output is correct
3 Correct 969 ms 520 KB Output is correct
4 Correct 719 ms 400 KB Output is correct
5 Correct 670 ms 528 KB Output is correct
6 Correct 468 ms 532 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 624 ms 520 KB Output is correct
2 Correct 508 ms 640 KB Output is correct
3 Correct 1057 ms 412 KB Output is correct
4 Correct 741 ms 508 KB Output is correct
5 Correct 741 ms 400 KB Output is correct
6 Correct 493 ms 528 KB Output is correct
7 Correct 568 ms 528 KB Output is correct
8 Correct 3 ms 468 KB Output is correct
9 Correct 4 ms 476 KB Output is correct
10 Correct 1 ms 472 KB Output is correct
11 Correct 681 ms 552 KB Output is correct
12 Correct 541 ms 624 KB Output is correct
13 Correct 583 ms 760 KB Output is correct
14 Correct 504 ms 528 KB Output is correct
15 Correct 54 ms 576 KB Output is correct
16 Correct 78 ms 696 KB Output is correct
17 Correct 120 ms 804 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1023 ms 516 KB Output is correct
2 Correct 741 ms 400 KB Output is correct
3 Correct 719 ms 528 KB Output is correct
4 Correct 3 ms 476 KB Output is correct
5 Correct 5 ms 468 KB Output is correct
6 Correct 2 ms 480 KB Output is correct
7 Correct 617 ms 516 KB Output is correct
8 Correct 967 ms 516 KB Output is correct
9 Correct 804 ms 508 KB Output is correct
10 Correct 730 ms 400 KB Output is correct
11 Correct 6 ms 468 KB Output is correct
12 Correct 4 ms 480 KB Output is correct
13 Correct 6 ms 468 KB Output is correct
14 Correct 4 ms 476 KB Output is correct
15 Correct 2 ms 472 KB Output is correct
16 Correct 581 ms 400 KB Output is correct
17 Correct 650 ms 540 KB Output is correct
18 Correct 501 ms 400 KB Output is correct
19 Correct 610 ms 400 KB Output is correct
20 Correct 475 ms 512 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 551 ms 528 KB Output is correct
2 Correct 507 ms 520 KB Output is correct
3 Correct 1029 ms 528 KB Output is correct
4 Correct 717 ms 400 KB Output is correct
5 Correct 727 ms 400 KB Output is correct
6 Correct 496 ms 632 KB Output is correct
7 Correct 493 ms 528 KB Output is correct
8 Correct 3 ms 476 KB Output is correct
9 Correct 6 ms 584 KB Output is correct
10 Correct 2 ms 400 KB Output is correct
11 Correct 568 ms 500 KB Output is correct
12 Correct 518 ms 536 KB Output is correct
13 Correct 970 ms 400 KB Output is correct
14 Correct 855 ms 640 KB Output is correct
15 Correct 626 ms 400 KB Output is correct
16 Correct 491 ms 520 KB Output is correct
17 Correct 621 ms 504 KB Output is correct
18 Correct 578 ms 632 KB Output is correct
19 Correct 479 ms 640 KB Output is correct
20 Correct 498 ms 492 KB Output is correct
21 Correct 58 ms 416 KB Output is correct
22 Correct 84 ms 656 KB Output is correct
23 Correct 111 ms 680 KB Output is correct
24 Correct 5 ms 468 KB Output is correct
25 Correct 6 ms 476 KB Output is correct
26 Correct 4 ms 468 KB Output is correct
27 Correct 3 ms 468 KB Output is correct
28 Correct 1 ms 472 KB Output is correct
29 Correct 659 ms 512 KB Output is correct
30 Correct 516 ms 400 KB Output is correct
31 Correct 510 ms 400 KB Output is correct
32 Correct 616 ms 512 KB Output is correct
33 Correct 565 ms 528 KB Output is correct
34 Correct 395 ms 528 KB Output is correct
35 Correct 474 ms 888 KB Output is correct
36 Correct 464 ms 624 KB Output is correct
37 Correct 534 ms 596 KB Output is correct
38 Correct 462 ms 648 KB Output is correct
39 Correct 450 ms 632 KB Output is correct
40 Correct 566 ms 716 KB Output is correct
41 Correct 471 ms 756 KB Output is correct
42 Correct 75 ms 528 KB Output is correct
43 Correct 120 ms 544 KB Output is correct
44 Correct 153 ms 604 KB Output is correct
45 Correct 172 ms 528 KB Output is correct
46 Correct 332 ms 656 KB Output is correct
47 Correct 356 ms 636 KB Output is correct
48 Correct 55 ms 720 KB Output is correct
49 Correct 77 ms 656 KB Output is correct