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Submission #1073800

# Submission time Handle Problem Language Result Execution time Memory
1073800 2024-08-24T21:42:43 Z thatsgonzalez Stations (IOI20_stations) C++14
100 / 100
 646 ms 1272 KB 
#include "stations.h"
#include <vector>

#include <bits/stdc++.h>
using namespace std;


#define pb push_back

int mn = 0;
map<int,bool> mp;

int dfs(int node, int p, vector<vector<int>> &g, vector<int> &sub_tree){

	for(auto &x: g[node]){
		if(x == p) continue;

		sub_tree[node]+=dfs(x,node,g,sub_tree);

	}

	return sub_tree[node]=sub_tree[node]+1;

}

void calc_labels(int node, int p, int t, vector<vector<int>> &g, vector<int> &sub_tree, vector<int> &labels){
	if(!t){
		while(mp[mn]) mn++;
		mp[mn] = 1;
		labels[node] = mn; 
		while(mp[mn]) mn++;
	}
	int turno = t^1;
	for(auto &x: g[node]){
		if(x == p) continue;
		calc_labels(x,node,turno,g,sub_tree,labels);
	}
	if(t){
		while(mp[mn]) mn++;
		mp[mn] = 1;
		labels[node] = mn; 
		while(mp[mn]) mn++;
	}

}

std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	
	vector<int> sub_tree(n,0);
	vector<vector<int>> g(n);
	vector<int> labels(n);

	for(int i = 0; i<n-1; i++){
		g[u[i]].pb(v[i]);
		g[v[i]].pb(u[i]);
	}


	dfs(0,-1,g,sub_tree);
	calc_labels(0,-1,1,g,sub_tree,labels);

	mn = 0;
	mp.clear();
	return labels;
}

int find_next_station(int s, int t, std::vector<int> c) {
	
	if(c[0]>s){
		int l = s;
		for(int i = 0; i<c.size()-1; i++){
			if(t>=l and t<=c[i]){
				return c[i];
			}
			else l = c[i]+1;
		}
		return c.back();
	}
	else{
		int r = s;
		for(int i = c.size()-1; i; i--){
			if(t>=c[i] and t<=r) return c[i];
			else r = c[i]-1;
		}
		return c[0];
	}

}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:71:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |   for(int i = 0; i<c.size()-1; i++){
      |                  ~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 367 ms 940 KB Output is correct
2 Correct 303 ms 940 KB Output is correct
3 Correct 625 ms 684 KB Output is correct
4 Correct 447 ms 684 KB Output is correct
5 Correct 424 ms 684 KB Output is correct
6 Correct 305 ms 940 KB Output is correct
7 Correct 314 ms 940 KB Output is correct
8 Correct 2 ms 776 KB Output is correct
9 Correct 2 ms 768 KB Output is correct
10 Correct 0 ms 776 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 292 ms 684 KB Output is correct
2 Correct 378 ms 688 KB Output is correct
3 Correct 626 ms 940 KB Output is correct
4 Correct 453 ms 684 KB Output is correct
5 Correct 427 ms 684 KB Output is correct
6 Correct 319 ms 684 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 399 ms 940 KB Output is correct
2 Correct 329 ms 940 KB Output is correct
3 Correct 584 ms 684 KB Output is correct
4 Correct 480 ms 684 KB Output is correct
5 Correct 380 ms 684 KB Output is correct
6 Correct 322 ms 940 KB Output is correct
7 Correct 342 ms 940 KB Output is correct
8 Correct 1 ms 776 KB Output is correct
9 Correct 2 ms 768 KB Output is correct
10 Correct 0 ms 776 KB Output is correct
11 Correct 395 ms 684 KB Output is correct
12 Correct 309 ms 1272 KB Output is correct
13 Correct 287 ms 1020 KB Output is correct
14 Correct 327 ms 704 KB Output is correct
15 Correct 32 ms 768 KB Output is correct
16 Correct 36 ms 764 KB Output is correct
17 Correct 72 ms 712 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 618 ms 684 KB Output is correct
2 Correct 478 ms 684 KB Output is correct
3 Correct 414 ms 684 KB Output is correct
4 Correct 2 ms 768 KB Output is correct
5 Correct 1 ms 768 KB Output is correct
6 Correct 0 ms 776 KB Output is correct
7 Correct 412 ms 772 KB Output is correct
8 Correct 583 ms 940 KB Output is correct
9 Correct 455 ms 684 KB Output is correct
10 Correct 378 ms 684 KB Output is correct
11 Correct 3 ms 768 KB Output is correct
12 Correct 2 ms 764 KB Output is correct
13 Correct 2 ms 768 KB Output is correct
14 Correct 3 ms 768 KB Output is correct
15 Correct 1 ms 768 KB Output is correct
16 Correct 376 ms 684 KB Output is correct
17 Correct 303 ms 684 KB Output is correct
18 Correct 337 ms 684 KB Output is correct
19 Correct 381 ms 684 KB Output is correct
20 Correct 345 ms 684 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 369 ms 940 KB Output is correct
2 Correct 310 ms 940 KB Output is correct
3 Correct 595 ms 684 KB Output is correct
4 Correct 504 ms 684 KB Output is correct
5 Correct 399 ms 688 KB Output is correct
6 Correct 294 ms 940 KB Output is correct
7 Correct 302 ms 940 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 776 KB Output is correct
11 Correct 301 ms 776 KB Output is correct
12 Correct 387 ms 696 KB Output is correct
13 Correct 646 ms 684 KB Output is correct
14 Correct 424 ms 684 KB Output is correct
15 Correct 391 ms 684 KB Output is correct
16 Correct 286 ms 684 KB Output is correct
17 Correct 382 ms 684 KB Output is correct
18 Correct 322 ms 1188 KB Output is correct
19 Correct 339 ms 1188 KB Output is correct
20 Correct 288 ms 684 KB Output is correct
21 Correct 30 ms 764 KB Output is correct
22 Correct 36 ms 776 KB Output is correct
23 Correct 59 ms 684 KB Output is correct
24 Correct 3 ms 764 KB Output is correct
25 Correct 2 ms 776 KB Output is correct
26 Correct 2 ms 768 KB Output is correct
27 Correct 1 ms 768 KB Output is correct
28 Correct 2 ms 776 KB Output is correct
29 Correct 393 ms 684 KB Output is correct
30 Correct 380 ms 684 KB Output is correct
31 Correct 334 ms 684 KB Output is correct
32 Correct 364 ms 684 KB Output is correct
33 Correct 317 ms 684 KB Output is correct
34 Correct 215 ms 940 KB Output is correct
35 Correct 314 ms 1196 KB Output is correct
36 Correct 301 ms 1012 KB Output is correct
37 Correct 299 ms 764 KB Output is correct
38 Correct 330 ms 772 KB Output is correct
39 Correct 279 ms 1036 KB Output is correct
40 Correct 311 ms 1188 KB Output is correct
41 Correct 317 ms 940 KB Output is correct
42 Correct 40 ms 768 KB Output is correct
43 Correct 60 ms 684 KB Output is correct
44 Correct 73 ms 748 KB Output is correct
45 Correct 99 ms 684 KB Output is correct
46 Correct 221 ms 684 KB Output is correct
47 Correct 200 ms 980 KB Output is correct
48 Correct 27 ms 760 KB Output is correct
49 Correct 37 ms 972 KB Output is correct