oj.uz

Submission #1052382

# Submission time Handle Problem Language Result Execution time Memory
1052382 2024-08-10T14:06:01 Z fuad27 Stations (IOI20_stations) C++17
100 / 100
 553 ms 1424 KB 
#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 1010;
vector<int> g[N];
int tin[N], tout[N], dp[N];
int tim=0, tim2=0;
void dfs(int at, int p) {
	if(dp[at])
	tin[at]=tim++;
	for(int to:g[at]) 
	{
		if(to==p)continue;
		dp[to] = dp[at]^1;
		dfs(to, at);
	}
	if(!dp[at])
	tout[at]=tim++;
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	std::vector<int> labels(n);
	for(int i = 0;i<=n;i++)g[i].clear();
	tim=0;
	for(int i = 0;i<n-1;i++) {
		g[u[i]].push_back(v[i]);
		g[v[i]].push_back(u[i]);
	}
	dfs(0,0);
	for (int i = 0; i < n; i++) {
		if(dp[i])labels[i] = tin[i];
		else labels[i] = tout[i];
//		cout << i << " " << labels[i] << endl;
	}
	return labels;
}
 
int find_next_station(int s, int t, std::vector<int> c) {
	vector<int> kk = c;
	if(c.size()==1)return c[0];
	sort(kk.begin(), kk.end());
	if(kk[0] >= s) {
		if(t <= s)return kk.back();
		for(int i = 0;i<kk.size();i++) {
			if(kk[i] >= t)return kk[i];
		}
		return kk.back();
	}
	else if(kk.back() <= s) {
		if(t >= s)return kk[0];
		for(int i = kk.size()-1;i>=0;i--) {
			if(kk[i] <= t) {
				return kk[i];
			}
		}
		return kk[0];
	}
	return 0;
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:43:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |   for(int i = 0;i<kk.size();i++) {
      |                 ~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 329 ms 688 KB Output is correct
2 Correct 301 ms 1424 KB Output is correct
3 Correct 553 ms 800 KB Output is correct
4 Correct 358 ms 792 KB Output is correct
5 Correct 356 ms 684 KB Output is correct
6 Correct 290 ms 684 KB Output is correct
7 Correct 265 ms 684 KB Output is correct
8 Correct 1 ms 768 KB Output is correct
9 Correct 1 ms 768 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 284 ms 684 KB Output is correct
2 Correct 323 ms 684 KB Output is correct
3 Correct 522 ms 684 KB Output is correct
4 Correct 354 ms 684 KB Output is correct
5 Correct 345 ms 684 KB Output is correct
6 Correct 232 ms 684 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 229 ms 684 KB Output is correct
2 Correct 255 ms 684 KB Output is correct
3 Correct 532 ms 684 KB Output is correct
4 Correct 362 ms 684 KB Output is correct
5 Correct 351 ms 712 KB Output is correct
6 Correct 256 ms 684 KB Output is correct
7 Correct 271 ms 684 KB Output is correct
8 Correct 0 ms 768 KB Output is correct
9 Correct 1 ms 772 KB Output is correct
10 Correct 0 ms 768 KB Output is correct
11 Correct 347 ms 812 KB Output is correct
12 Correct 246 ms 1044 KB Output is correct
13 Correct 281 ms 788 KB Output is correct
14 Correct 277 ms 684 KB Output is correct
15 Correct 23 ms 768 KB Output is correct
16 Correct 26 ms 768 KB Output is correct
17 Correct 40 ms 768 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 482 ms 684 KB Output is correct
2 Correct 392 ms 684 KB Output is correct
3 Correct 354 ms 684 KB Output is correct
4 Correct 0 ms 776 KB Output is correct
5 Correct 1 ms 776 KB Output is correct
6 Correct 1 ms 768 KB Output is correct
7 Correct 342 ms 800 KB Output is correct
8 Correct 512 ms 684 KB Output is correct
9 Correct 376 ms 684 KB Output is correct
10 Correct 352 ms 684 KB Output is correct
11 Correct 3 ms 768 KB Output is correct
12 Correct 2 ms 768 KB Output is correct
13 Correct 1 ms 772 KB Output is correct
14 Correct 1 ms 764 KB Output is correct
15 Correct 0 ms 772 KB Output is correct
16 Correct 290 ms 684 KB Output is correct
17 Correct 294 ms 684 KB Output is correct
18 Correct 270 ms 684 KB Output is correct
19 Correct 295 ms 684 KB Output is correct
20 Correct 277 ms 684 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 274 ms 684 KB Output is correct
2 Correct 239 ms 684 KB Output is correct
3 Correct 502 ms 684 KB Output is correct
4 Correct 407 ms 684 KB Output is correct
5 Correct 318 ms 688 KB Output is correct
6 Correct 244 ms 688 KB Output is correct
7 Correct 235 ms 684 KB Output is correct
8 Correct 0 ms 764 KB Output is correct
9 Correct 1 ms 768 KB Output is correct
10 Correct 1 ms 768 KB Output is correct
11 Correct 262 ms 684 KB Output is correct
12 Correct 339 ms 684 KB Output is correct
13 Correct 488 ms 684 KB Output is correct
14 Correct 394 ms 684 KB Output is correct
15 Correct 339 ms 684 KB Output is correct
16 Correct 229 ms 684 KB Output is correct
17 Correct 318 ms 684 KB Output is correct
18 Correct 230 ms 936 KB Output is correct
19 Correct 272 ms 1188 KB Output is correct
20 Correct 233 ms 684 KB Output is correct
21 Correct 24 ms 768 KB Output is correct
22 Correct 25 ms 764 KB Output is correct
23 Correct 54 ms 716 KB Output is correct
24 Correct 3 ms 768 KB Output is correct
25 Correct 3 ms 768 KB Output is correct
26 Correct 2 ms 764 KB Output is correct
27 Correct 2 ms 768 KB Output is correct
28 Correct 0 ms 764 KB Output is correct
29 Correct 290 ms 684 KB Output is correct
30 Correct 292 ms 684 KB Output is correct
31 Correct 285 ms 684 KB Output is correct
32 Correct 296 ms 684 KB Output is correct
33 Correct 307 ms 684 KB Output is correct
34 Correct 173 ms 716 KB Output is correct
35 Correct 225 ms 820 KB Output is correct
36 Correct 261 ms 932 KB Output is correct
37 Correct 247 ms 812 KB Output is correct
38 Correct 258 ms 684 KB Output is correct
39 Correct 264 ms 940 KB Output is correct
40 Correct 261 ms 804 KB Output is correct
41 Correct 259 ms 800 KB Output is correct
42 Correct 36 ms 1016 KB Output is correct
43 Correct 69 ms 880 KB Output is correct
44 Correct 73 ms 732 KB Output is correct
45 Correct 77 ms 972 KB Output is correct
46 Correct 180 ms 684 KB Output is correct
47 Correct 194 ms 700 KB Output is correct
48 Correct 33 ms 768 KB Output is correct
49 Correct 24 ms 776 KB Output is correct