oj.uz

Submission #718481

# Submission time Handle Problem Language Result Execution time Memory
718481 2023-04-04T07:43:50 Z baojiaopisu Stations (IOI20_stations) C++14
100 / 100
 966 ms 728 KB 
#include "stations.h"
#include <vector>
#include <algorithm>
using namespace std;
const int N = 1e3 + 10;
#define pb push_back

vector<int> ans;
int Time = 0;
vector<int> g[N];

void dfs(int u, int par, int t) {
	if(!t) ans[u] = ++Time;
	for(auto v : g[u]) {
		if(v != par) {
			dfs(v, u, t ^ 1);
		}
	}
	if(t) ans[u] = ++Time;
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	for(int i = 0; i < n; i++) g[i].clear();
	Time = 0;
	for(int i = 0; i < n - 1; i++) {
		g[u[i]].pb(v[i]);
		g[v[i]].pb(u[i]);
	}

	ans.resize(n);
	dfs(0, -1, 0);
	return ans;
}

int find_next_station(int s, int t, vector<int> c) {
	sort(c.begin(), c.end());
	if(c.size() == 1) return c[0];

	if(s < c[0]) {
		int ans = c[0];
		if(t < s) return c.back();
		for(int i = 0; i < c.size() - 1; i++) {
			if(t > c[i]) ans = c[i + 1];
		}
		return ans;
	} else {
		int ans = c[0];
		if(t > s) return c[0];
		for(int i = 1; i < c.size(); i++) {
			if(t >= c[i]) ans = c[i];
		}
		return ans;
	}
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:42:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |   for(int i = 0; i < c.size() - 1; i++) {
      |                  ~~^~~~~~~~~~~~~~
stations.cpp:49:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |   for(int i = 1; i < c.size(); i++) {
      |                  ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 549 ms 648 KB Output is correct
2 Correct 433 ms 644 KB Output is correct
3 Correct 880 ms 420 KB Output is correct
4 Correct 624 ms 516 KB Output is correct
5 Correct 573 ms 420 KB Output is correct
6 Correct 450 ms 548 KB Output is correct
7 Correct 464 ms 496 KB Output is correct
8 Correct 1 ms 500 KB Output is correct
9 Correct 3 ms 492 KB Output is correct
10 Correct 0 ms 492 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 366 ms 524 KB Output is correct
2 Correct 533 ms 532 KB Output is correct
3 Correct 966 ms 524 KB Output is correct
4 Correct 640 ms 520 KB Output is correct
5 Correct 585 ms 516 KB Output is correct
6 Correct 462 ms 516 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 561 ms 644 KB Output is correct
2 Correct 442 ms 640 KB Output is correct
3 Correct 900 ms 420 KB Output is correct
4 Correct 795 ms 516 KB Output is correct
5 Correct 553 ms 508 KB Output is correct
6 Correct 528 ms 508 KB Output is correct
7 Correct 553 ms 516 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 5 ms 496 KB Output is correct
10 Correct 1 ms 500 KB Output is correct
11 Correct 545 ms 516 KB Output is correct
12 Correct 473 ms 728 KB Output is correct
13 Correct 502 ms 676 KB Output is correct
14 Correct 457 ms 508 KB Output is correct
15 Correct 53 ms 472 KB Output is correct
16 Correct 63 ms 548 KB Output is correct
17 Correct 90 ms 588 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 810 ms 416 KB Output is correct
2 Correct 639 ms 416 KB Output is correct
3 Correct 556 ms 512 KB Output is correct
4 Correct 2 ms 500 KB Output is correct
5 Correct 3 ms 420 KB Output is correct
6 Correct 1 ms 500 KB Output is correct
7 Correct 555 ms 524 KB Output is correct
8 Correct 881 ms 416 KB Output is correct
9 Correct 623 ms 416 KB Output is correct
10 Correct 534 ms 516 KB Output is correct
11 Correct 4 ms 492 KB Output is correct
12 Correct 5 ms 492 KB Output is correct
13 Correct 5 ms 492 KB Output is correct
14 Correct 4 ms 524 KB Output is correct
15 Correct 2 ms 500 KB Output is correct
16 Correct 450 ms 512 KB Output is correct
17 Correct 525 ms 420 KB Output is correct
18 Correct 466 ms 416 KB Output is correct
19 Correct 431 ms 512 KB Output is correct
20 Correct 546 ms 420 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 483 ms 544 KB Output is correct
2 Correct 515 ms 636 KB Output is correct
3 Correct 748 ms 416 KB Output is correct
4 Correct 529 ms 524 KB Output is correct
5 Correct 619 ms 524 KB Output is correct
6 Correct 466 ms 644 KB Output is correct
7 Correct 418 ms 548 KB Output is correct
8 Correct 3 ms 480 KB Output is correct
9 Correct 3 ms 500 KB Output is correct
10 Correct 2 ms 492 KB Output is correct
11 Correct 397 ms 512 KB Output is correct
12 Correct 505 ms 544 KB Output is correct
13 Correct 839 ms 416 KB Output is correct
14 Correct 608 ms 512 KB Output is correct
15 Correct 660 ms 520 KB Output is correct
16 Correct 459 ms 544 KB Output is correct
17 Correct 600 ms 416 KB Output is correct
18 Correct 378 ms 636 KB Output is correct
19 Correct 445 ms 640 KB Output is correct
20 Correct 447 ms 544 KB Output is correct
21 Correct 55 ms 428 KB Output is correct
22 Correct 66 ms 544 KB Output is correct
23 Correct 69 ms 568 KB Output is correct
24 Correct 4 ms 492 KB Output is correct
25 Correct 4 ms 500 KB Output is correct
26 Correct 4 ms 492 KB Output is correct
27 Correct 2 ms 500 KB Output is correct
28 Correct 2 ms 500 KB Output is correct
29 Correct 520 ms 512 KB Output is correct
30 Correct 443 ms 520 KB Output is correct
31 Correct 347 ms 516 KB Output is correct
32 Correct 520 ms 420 KB Output is correct
33 Correct 525 ms 512 KB Output is correct
34 Correct 337 ms 524 KB Output is correct
35 Correct 394 ms 652 KB Output is correct
36 Correct 436 ms 544 KB Output is correct
37 Correct 452 ms 672 KB Output is correct
38 Correct 618 ms 604 KB Output is correct
39 Correct 529 ms 592 KB Output is correct
40 Correct 548 ms 640 KB Output is correct
41 Correct 498 ms 608 KB Output is correct
42 Correct 54 ms 544 KB Output is correct
43 Correct 106 ms 548 KB Output is correct
44 Correct 131 ms 516 KB Output is correct
45 Correct 168 ms 520 KB Output is correct
46 Correct 322 ms 544 KB Output is correct
47 Correct 309 ms 616 KB Output is correct
48 Correct 63 ms 664 KB Output is correct
49 Correct 57 ms 648 KB Output is correct