oj.uz

Submission #1014766

# Submission time Handle Problem Language Result Execution time Memory
1014766 2024-07-05T13:46:47 Z Unforgettablepl Stations (IOI20_stations) C++17
100 / 100
 629 ms 1272 KB 
#include <bits/stdc++.h>
using namespace std;

std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	vector<int> labels(n);
	vector<vector<int>> adj(n);
	for(int i=0;i<n-1;i++){
		adj[u[i]].emplace_back(v[i]);
		adj[v[i]].emplace_back(u[i]);
	}
	int tim = 0;
	function<void(int,int,bool)> dfs = [&](int x,int p,bool type){
		if(type)labels[x]=tim++;
		for(int&i:adj[x])if(i!=p)dfs(i,x,!type);
		if(!type)labels[x]=tim++;
	};
	dfs(0,-1,true);
	return labels;
}

int find_next_station(int s, int t, std::vector<int> c) {
	if(s<c.front()){
		// this is a min order
		c.insert(c.begin(),s);
		for(int i=1;i<c.size();i++){
			if(c[i-1]<t and t<=c[i])return c[i];
		}
		return c.back();
	} else {
		// this is a max order
		c.insert(c.end(),s);
		for(int i=0;i<c.size()-1;i++){
			if(c[i]<=t and t<c[i+1])return c[i];
		}
		return c.front();
	}
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:25:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |   for(int i=1;i<c.size();i++){
      |               ~^~~~~~~~~
stations.cpp:32:16: 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=0;i<c.size()-1;i++){
      |               ~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 314 ms 940 KB Output is correct
2 Correct 240 ms 940 KB Output is correct
3 Correct 522 ms 684 KB Output is correct
4 Correct 420 ms 684 KB Output is correct
5 Correct 391 ms 684 KB Output is correct
6 Correct 286 ms 940 KB Output is correct
7 Correct 282 ms 684 KB Output is correct
8 Correct 1 ms 764 KB Output is correct
9 Correct 2 ms 760 KB Output is correct
10 Correct 0 ms 768 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 279 ms 684 KB Output is correct
2 Correct 360 ms 684 KB Output is correct
3 Correct 534 ms 684 KB Output is correct
4 Correct 399 ms 936 KB Output is correct
5 Correct 361 ms 684 KB Output is correct
6 Correct 287 ms 684 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 354 ms 944 KB Output is correct
2 Correct 289 ms 940 KB Output is correct
3 Correct 592 ms 688 KB Output is correct
4 Correct 422 ms 684 KB Output is correct
5 Correct 399 ms 684 KB Output is correct
6 Correct 264 ms 944 KB Output is correct
7 Correct 309 ms 684 KB Output is correct
8 Correct 1 ms 768 KB Output is correct
9 Correct 2 ms 768 KB Output is correct
10 Correct 1 ms 768 KB Output is correct
11 Correct 415 ms 684 KB Output is correct
12 Correct 289 ms 1020 KB Output is correct
13 Correct 294 ms 1272 KB Output is correct
14 Correct 292 ms 684 KB Output is correct
15 Correct 44 ms 768 KB Output is correct
16 Correct 40 ms 684 KB Output is correct
17 Correct 81 ms 716 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 629 ms 684 KB Output is correct
2 Correct 457 ms 684 KB Output is correct
3 Correct 403 ms 688 KB Output is correct
4 Correct 1 ms 768 KB Output is correct
5 Correct 1 ms 776 KB Output is correct
6 Correct 0 ms 768 KB Output is correct
7 Correct 377 ms 772 KB Output is correct
8 Correct 607 ms 684 KB Output is correct
9 Correct 499 ms 684 KB Output is correct
10 Correct 379 ms 684 KB Output is correct
11 Correct 2 ms 768 KB Output is correct
12 Correct 2 ms 768 KB Output is correct
13 Correct 2 ms 772 KB Output is correct
14 Correct 1 ms 768 KB Output is correct
15 Correct 0 ms 768 KB Output is correct
16 Correct 314 ms 688 KB Output is correct
17 Correct 342 ms 684 KB Output is correct
18 Correct 334 ms 684 KB Output is correct
19 Correct 331 ms 684 KB Output is correct
20 Correct 312 ms 712 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 402 ms 940 KB Output is correct
2 Correct 284 ms 940 KB Output is correct
3 Correct 579 ms 684 KB Output is correct
4 Correct 467 ms 684 KB Output is correct
5 Correct 391 ms 684 KB Output is correct
6 Correct 291 ms 940 KB Output is correct
7 Correct 295 ms 688 KB Output is correct
8 Correct 1 ms 764 KB Output is correct
9 Correct 1 ms 768 KB Output is correct
10 Correct 0 ms 768 KB Output is correct
11 Correct 293 ms 684 KB Output is correct
12 Correct 359 ms 688 KB Output is correct
13 Correct 599 ms 684 KB Output is correct
14 Correct 475 ms 684 KB Output is correct
15 Correct 387 ms 684 KB Output is correct
16 Correct 325 ms 684 KB Output is correct
17 Correct 392 ms 684 KB Output is correct
18 Correct 343 ms 932 KB Output is correct
19 Correct 324 ms 1020 KB Output is correct
20 Correct 325 ms 684 KB Output is correct
21 Correct 30 ms 768 KB Output is correct
22 Correct 36 ms 764 KB Output is correct
23 Correct 57 ms 768 KB Output is correct
24 Correct 2 ms 776 KB Output is correct
25 Correct 2 ms 768 KB Output is correct
26 Correct 3 ms 776 KB Output is correct
27 Correct 1 ms 768 KB Output is correct
28 Correct 1 ms 768 KB Output is correct
29 Correct 327 ms 684 KB Output is correct
30 Correct 360 ms 684 KB Output is correct
31 Correct 343 ms 684 KB Output is correct
32 Correct 358 ms 684 KB Output is correct
33 Correct 344 ms 684 KB Output is correct
34 Correct 204 ms 940 KB Output is correct
35 Correct 296 ms 1032 KB Output is correct
36 Correct 304 ms 1040 KB Output is correct
37 Correct 313 ms 1020 KB Output is correct
38 Correct 339 ms 1184 KB Output is correct
39 Correct 329 ms 780 KB Output is correct
40 Correct 303 ms 772 KB Output is correct
41 Correct 320 ms 1016 KB Output is correct
42 Correct 42 ms 760 KB Output is correct
43 Correct 56 ms 684 KB Output is correct
44 Correct 83 ms 792 KB Output is correct
45 Correct 118 ms 684 KB Output is correct
46 Correct 191 ms 684 KB Output is correct
47 Correct 192 ms 684 KB Output is correct
48 Correct 36 ms 684 KB Output is correct
49 Correct 30 ms 984 KB Output is correct