oj.uz

Submission #602107

# Submission time Handle Problem Language Result Execution time Memory
602107 2022-07-22T14:57:00 Z Morisz10 Stations (IOI20_stations) C++14
100 / 100
 1123 ms 892 KB 
#include "stations.h"
#include <vector>
#include <algorithm>
#include <iostream>
#include <cassert>
#include <map>
#include <cstdio>
using namespace std;

const int maxn = 1010;
vector<int> g[maxn];
vector<int> lab, siz;
int calc_siz(int x, int p) {
	for (int i : g[x]) {
		if (i == p)continue;
		siz[x] += calc_siz(i, x);
	}
	return siz[x];
}

void calc_lab(int x, int p) {
	int sum = 0, pl = (p < 0 ? maxn : lab[p]);
	for (int i : g[x]) {
		if (i == p)continue;
		if (pl > lab[x]) {
			lab[i] = lab[x] + siz[i] + sum;
		}
		else {
			lab[i] = lab[x] - siz[i] - sum;
		}
		calc_lab(i, x);
		sum += siz[i];
	}
	return;
}

vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	lab.assign(n, 0);
	siz.assign(n, 1);
	for (int i = 0; i < n; i++)g[i].clear();
	for (int i = 0; i < u.size(); i++) {
		g[u[i]].push_back(v[i]);
		g[v[i]].push_back(u[i]);
	}
	calc_siz(0, -1);
	calc_lab(0, -1);
	return lab;
}

int find_next_station(int s, int t, std::vector<int> c) {
	if (s > c[0]) {
		reverse(c.begin(), c.end());
		for (int i : c) {
			if (s > t && t >= i)return i;
		}
		return c.back();
	}
	else {
		for (int i : c) {
			if (s < t && t <= i)return i;
		}
		return c.back();
	}
}

Compilation message

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:41:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for (int i = 0; i < u.size(); i++) {
      |                  ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 626 ms 544 KB Output is correct
2 Correct 591 ms 728 KB Output is correct
3 Correct 934 ms 528 KB Output is correct
4 Correct 678 ms 528 KB Output is correct
5 Correct 580 ms 532 KB Output is correct
6 Correct 321 ms 652 KB Output is correct
7 Correct 515 ms 532 KB Output is correct
8 Correct 2 ms 496 KB Output is correct
9 Correct 5 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 486 ms 580 KB Output is correct
2 Correct 663 ms 524 KB Output is correct
3 Correct 652 ms 420 KB Output is correct
4 Correct 981 ms 416 KB Output is correct
5 Correct 686 ms 416 KB Output is correct
6 Correct 627 ms 544 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 648 ms 660 KB Output is correct
2 Correct 524 ms 676 KB Output is correct
3 Correct 957 ms 524 KB Output is correct
4 Correct 716 ms 416 KB Output is correct
5 Correct 661 ms 528 KB Output is correct
6 Correct 449 ms 648 KB Output is correct
7 Correct 513 ms 528 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 4 ms 492 KB Output is correct
10 Correct 2 ms 492 KB Output is correct
11 Correct 660 ms 420 KB Output is correct
12 Correct 581 ms 840 KB Output is correct
13 Correct 496 ms 892 KB Output is correct
14 Correct 350 ms 524 KB Output is correct
15 Correct 35 ms 544 KB Output is correct
16 Correct 62 ms 724 KB Output is correct
17 Correct 93 ms 676 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 824 ms 416 KB Output is correct
2 Correct 576 ms 524 KB Output is correct
3 Correct 524 ms 420 KB Output is correct
4 Correct 2 ms 568 KB Output is correct
5 Correct 5 ms 492 KB Output is correct
6 Correct 1 ms 456 KB Output is correct
7 Correct 504 ms 524 KB Output is correct
8 Correct 999 ms 528 KB Output is correct
9 Correct 1123 ms 528 KB Output is correct
10 Correct 920 ms 484 KB Output is correct
11 Correct 6 ms 492 KB Output is correct
12 Correct 6 ms 496 KB Output is correct
13 Correct 4 ms 492 KB Output is correct
14 Correct 5 ms 504 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 568 ms 528 KB Output is correct
17 Correct 441 ms 416 KB Output is correct
18 Correct 825 ms 524 KB Output is correct
19 Correct 455 ms 528 KB Output is correct
20 Correct 631 ms 420 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 908 ms 656 KB Output is correct
2 Correct 446 ms 544 KB Output is correct
3 Correct 911 ms 532 KB Output is correct
4 Correct 710 ms 528 KB Output is correct
5 Correct 520 ms 416 KB Output is correct
6 Correct 455 ms 672 KB Output is correct
7 Correct 506 ms 548 KB Output is correct
8 Correct 1 ms 500 KB Output is correct
9 Correct 3 ms 500 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 425 ms 548 KB Output is correct
12 Correct 527 ms 528 KB Output is correct
13 Correct 858 ms 420 KB Output is correct
14 Correct 593 ms 528 KB Output is correct
15 Correct 489 ms 528 KB Output is correct
16 Correct 539 ms 544 KB Output is correct
17 Correct 622 ms 532 KB Output is correct
18 Correct 452 ms 632 KB Output is correct
19 Correct 454 ms 648 KB Output is correct
20 Correct 474 ms 528 KB Output is correct
21 Correct 50 ms 492 KB Output is correct
22 Correct 71 ms 600 KB Output is correct
23 Correct 95 ms 548 KB Output is correct
24 Correct 6 ms 500 KB Output is correct
25 Correct 5 ms 492 KB Output is correct
26 Correct 4 ms 500 KB Output is correct
27 Correct 4 ms 500 KB Output is correct
28 Correct 2 ms 500 KB Output is correct
29 Correct 467 ms 416 KB Output is correct
30 Correct 461 ms 416 KB Output is correct
31 Correct 466 ms 524 KB Output is correct
32 Correct 466 ms 420 KB Output is correct
33 Correct 454 ms 420 KB Output is correct
34 Correct 298 ms 540 KB Output is correct
35 Correct 431 ms 652 KB Output is correct
36 Correct 453 ms 744 KB Output is correct
37 Correct 372 ms 520 KB Output is correct
38 Correct 395 ms 760 KB Output is correct
39 Correct 444 ms 668 KB Output is correct
40 Correct 463 ms 668 KB Output is correct
41 Correct 439 ms 652 KB Output is correct
42 Correct 52 ms 572 KB Output is correct
43 Correct 87 ms 572 KB Output is correct
44 Correct 125 ms 548 KB Output is correct
45 Correct 169 ms 612 KB Output is correct
46 Correct 287 ms 532 KB Output is correct
47 Correct 271 ms 544 KB Output is correct
48 Correct 62 ms 752 KB Output is correct
49 Correct 65 ms 784 KB Output is correct