oj.uz

Submission #697064

# Submission time Handle Problem Language Result Execution time Memory
697064 2023-02-08T05:53:46 Z garam1732 Stations (IOI20_stations) C++14
100 / 100
 946 ms 916 KB 
#include "stations.h"
#include <bits/stdc++.h>
using namespace std;

typedef pair<int, int> pi;

vector<int> adj[1010];
int in[1010], out[1010], cnt;

void dfs(int here, int par, bool flag, vector<int>& labels) {
    in[here] = cnt++;
    for(int there : adj[here]) {
        if(there == par) continue;
        dfs(there, here, !flag, labels);
    }
    out[here] = cnt++;

    labels[here] = (flag ? in[here] : out[here]);
}

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++) adj[i].clear();
	cnt = 0;

	for(int i = 0; i < u.size(); i++) {
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
	}

	dfs(0, 0, 0, labels);

	priority_queue<pi> pq;
	for(int i = 0; i < n; i++) pq.push(pi(labels[i], i));
	for(int i = n-1; i >= 0; i--) {
        labels[pq.top().second] = i;
        pq.pop();
	}

	return labels;
}

int find_next_station(int s, int t, std::vector<int> c) {
	if(s < c[0]) {
        if(s < t && t <= c[0]) return c[0];
        for(int i = 1; i < c.size(); i++) if(c[i-1] < t && t <= c[i]) return c[i];
        return *c.rbegin();
	}

	for(int i = 2; i < c.size(); i++) if(c[i-1] <= t && t < c[i]) return c[i-1];
	if(*c.rbegin() <= t && t < s) return *c.rbegin();
	return c[0];
}

Compilation message

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:26:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |  for(int i = 0; i < u.size(); i++) {
      |                 ~~^~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:46:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for(int i = 1; i < c.size(); i++) if(c[i-1] < t && t <= c[i]) return c[i];
      |                        ~~^~~~~~~~~~
stations.cpp:50:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |  for(int i = 2; i < c.size(); i++) if(c[i-1] <= t && t < c[i]) return c[i-1];
      |                 ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 533 ms 652 KB Output is correct
2 Correct 422 ms 672 KB Output is correct
3 Correct 934 ms 420 KB Output is correct
4 Correct 700 ms 420 KB Output is correct
5 Correct 608 ms 416 KB Output is correct
6 Correct 402 ms 672 KB Output is correct
7 Correct 377 ms 548 KB Output is correct
8 Correct 1 ms 500 KB Output is correct
9 Correct 4 ms 492 KB Output is correct
10 Correct 1 ms 628 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 370 ms 532 KB Output is correct
2 Correct 501 ms 544 KB Output is correct
3 Correct 800 ms 520 KB Output is correct
4 Correct 625 ms 536 KB Output is correct
5 Correct 467 ms 544 KB Output is correct
6 Correct 438 ms 532 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 545 ms 664 KB Output is correct
2 Correct 426 ms 660 KB Output is correct
3 Correct 842 ms 416 KB Output is correct
4 Correct 644 ms 528 KB Output is correct
5 Correct 469 ms 548 KB Output is correct
6 Correct 483 ms 676 KB Output is correct
7 Correct 430 ms 540 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 5 ms 620 KB Output is correct
10 Correct 1 ms 496 KB Output is correct
11 Correct 582 ms 532 KB Output is correct
12 Correct 455 ms 792 KB Output is correct
13 Correct 479 ms 776 KB Output is correct
14 Correct 494 ms 532 KB Output is correct
15 Correct 56 ms 616 KB Output is correct
16 Correct 61 ms 576 KB Output is correct
17 Correct 92 ms 672 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 769 ms 516 KB Output is correct
2 Correct 694 ms 536 KB Output is correct
3 Correct 620 ms 532 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 3 ms 492 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 537 ms 416 KB Output is correct
8 Correct 926 ms 540 KB Output is correct
9 Correct 612 ms 548 KB Output is correct
10 Correct 578 ms 416 KB Output is correct
11 Correct 5 ms 492 KB Output is correct
12 Correct 6 ms 500 KB Output is correct
13 Correct 2 ms 492 KB Output is correct
14 Correct 4 ms 628 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 540 ms 532 KB Output is correct
17 Correct 517 ms 536 KB Output is correct
18 Correct 497 ms 532 KB Output is correct
19 Correct 522 ms 556 KB Output is correct
20 Correct 452 ms 536 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 470 ms 664 KB Output is correct
2 Correct 443 ms 660 KB Output is correct
3 Correct 946 ms 420 KB Output is correct
4 Correct 667 ms 536 KB Output is correct
5 Correct 579 ms 528 KB Output is correct
6 Correct 464 ms 660 KB Output is correct
7 Correct 439 ms 532 KB Output is correct
8 Correct 1 ms 500 KB Output is correct
9 Correct 3 ms 620 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 366 ms 536 KB Output is correct
12 Correct 533 ms 548 KB Output is correct
13 Correct 776 ms 444 KB Output is correct
14 Correct 655 ms 536 KB Output is correct
15 Correct 568 ms 416 KB Output is correct
16 Correct 385 ms 532 KB Output is correct
17 Correct 583 ms 416 KB Output is correct
18 Correct 413 ms 656 KB Output is correct
19 Correct 462 ms 760 KB Output is correct
20 Correct 430 ms 524 KB Output is correct
21 Correct 59 ms 572 KB Output is correct
22 Correct 62 ms 544 KB Output is correct
23 Correct 93 ms 548 KB Output is correct
24 Correct 4 ms 500 KB Output is correct
25 Correct 5 ms 500 KB Output is correct
26 Correct 4 ms 620 KB Output is correct
27 Correct 3 ms 500 KB Output is correct
28 Correct 2 ms 488 KB Output is correct
29 Correct 469 ms 536 KB Output is correct
30 Correct 421 ms 660 KB Output is correct
31 Correct 529 ms 536 KB Output is correct
32 Correct 448 ms 532 KB Output is correct
33 Correct 535 ms 420 KB Output is correct
34 Correct 324 ms 676 KB Output is correct
35 Correct 434 ms 896 KB Output is correct
36 Correct 436 ms 768 KB Output is correct
37 Correct 462 ms 648 KB Output is correct
38 Correct 448 ms 640 KB Output is correct
39 Correct 443 ms 664 KB Output is correct
40 Correct 469 ms 728 KB Output is correct
41 Correct 470 ms 828 KB Output is correct
42 Correct 57 ms 672 KB Output is correct
43 Correct 99 ms 672 KB Output is correct
44 Correct 121 ms 676 KB Output is correct
45 Correct 174 ms 528 KB Output is correct
46 Correct 293 ms 548 KB Output is correct
47 Correct 301 ms 532 KB Output is correct
48 Correct 43 ms 916 KB Output is correct
49 Correct 57 ms 828 KB Output is correct