oj.uz

Submission #584353

# Submission time Handle Problem Language Result Execution time Memory
584353 2022-06-27T08:54:47 Z Valaki2 Stations (IOI20_stations) C++14
100 / 100
 1006 ms 752 KB 
#include "stations.h"
#include <bits/stdc++.h>
using namespace std;

#define pb push_back

void dfs(int cur, bool color, int &timer, vector<int> &res, vector<bool> &vis, vector<vector<int> > &g) {
    vis[cur] = true;
    if(color) {
        timer++;
        res[cur] = timer;
    }
    for(int nei : g[cur]) {
        if(!vis[nei]) {
            dfs(nei, !color, timer, res, vis, g);
        }
    }
    if(!color) {
        timer++;
        res[cur] = timer;
    }
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    int timer = 0;
    vector<int> res(n, 0);
    vector<bool> vis(n, false);
    vector<vector<int> > g(n);
    for(int i = 0; i < n - 1; i++) {
        g[u[i]].pb(v[i]);
        g[v[i]].pb(u[i]);
    }
    dfs(0, true, timer, res, vis, g);
    /*for(int x : res) {
        cout << x << " ";
    }
    cout << "\n";*/
    return res;
}

#define ans(x) int tmp = (to_swap ? ceil - x : x); /*cout << "Answer: " << tmp << "\n";*/ return tmp;

int find_next_station(int s, int t, vector<int> c) {
    /*cout << "Question:\n";
    cout << s << " " << t << "\n";
    for(int x : c) {
        cout << x << " ";
    }
    cout << "\n";*/
	if(s == 1) {
        for(int &x : c) {
            if(t <= x) {
                //cout << "Answer: " << x << "\n";
                return x;
            }
        }
	}
	bool to_swap = false;
	int ceil = max({s, t, *max_element(c.begin(), c.end())}) + 1;
	if(c[0] < s) {
        to_swap = true;
        s = ceil - s;
        t = ceil - t;
        for(int &x : c) {
            x = ceil - x;
        }
        reverse(c.begin(), c.end());
	}
	int p = c.back();
	c.resize((int) c.size() - 1);
	if(t < s) {
        ans(p);
	}
    for(int &x : c) {
        if(t <= x) {
            ans(x);
        }
    }
    ans(p);
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 635 ms 624 KB Output is correct
2 Correct 671 ms 628 KB Output is correct
3 Correct 1006 ms 528 KB Output is correct
4 Correct 931 ms 416 KB Output is correct
5 Correct 679 ms 416 KB Output is correct
6 Correct 493 ms 544 KB Output is correct
7 Correct 496 ms 500 KB Output is correct
8 Correct 3 ms 492 KB Output is correct
9 Correct 3 ms 492 KB Output is correct
10 Correct 2 ms 492 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 542 ms 504 KB Output is correct
2 Correct 515 ms 544 KB Output is correct
3 Correct 911 ms 500 KB Output is correct
4 Correct 788 ms 416 KB Output is correct
5 Correct 606 ms 420 KB Output is correct
6 Correct 372 ms 504 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 457 ms 652 KB Output is correct
2 Correct 447 ms 672 KB Output is correct
3 Correct 902 ms 536 KB Output is correct
4 Correct 649 ms 504 KB Output is correct
5 Correct 566 ms 420 KB Output is correct
6 Correct 359 ms 632 KB Output is correct
7 Correct 411 ms 544 KB Output is correct
8 Correct 3 ms 492 KB Output is correct
9 Correct 4 ms 500 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 623 ms 508 KB Output is correct
12 Correct 451 ms 628 KB Output is correct
13 Correct 436 ms 620 KB Output is correct
14 Correct 435 ms 548 KB Output is correct
15 Correct 50 ms 440 KB Output is correct
16 Correct 54 ms 508 KB Output is correct
17 Correct 95 ms 544 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 770 ms 496 KB Output is correct
2 Correct 572 ms 500 KB Output is correct
3 Correct 717 ms 500 KB Output is correct
4 Correct 2 ms 496 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 572 ms 416 KB Output is correct
8 Correct 803 ms 416 KB Output is correct
9 Correct 641 ms 416 KB Output is correct
10 Correct 646 ms 504 KB Output is correct
11 Correct 6 ms 496 KB Output is correct
12 Correct 6 ms 492 KB Output is correct
13 Correct 4 ms 492 KB Output is correct
14 Correct 3 ms 492 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 525 ms 504 KB Output is correct
17 Correct 482 ms 504 KB Output is correct
18 Correct 426 ms 420 KB Output is correct
19 Correct 528 ms 508 KB Output is correct
20 Correct 469 ms 420 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 584 ms 656 KB Output is correct
2 Correct 454 ms 636 KB Output is correct
3 Correct 918 ms 500 KB Output is correct
4 Correct 683 ms 512 KB Output is correct
5 Correct 512 ms 420 KB Output is correct
6 Correct 457 ms 660 KB Output is correct
7 Correct 429 ms 548 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 3 ms 500 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 496 ms 504 KB Output is correct
12 Correct 498 ms 504 KB Output is correct
13 Correct 890 ms 428 KB Output is correct
14 Correct 620 ms 416 KB Output is correct
15 Correct 639 ms 504 KB Output is correct
16 Correct 473 ms 504 KB Output is correct
17 Correct 587 ms 420 KB Output is correct
18 Correct 462 ms 692 KB Output is correct
19 Correct 411 ms 712 KB Output is correct
20 Correct 472 ms 540 KB Output is correct
21 Correct 52 ms 444 KB Output is correct
22 Correct 70 ms 572 KB Output is correct
23 Correct 96 ms 504 KB Output is correct
24 Correct 8 ms 492 KB Output is correct
25 Correct 6 ms 492 KB Output is correct
26 Correct 2 ms 492 KB Output is correct
27 Correct 4 ms 492 KB Output is correct
28 Correct 2 ms 492 KB Output is correct
29 Correct 422 ms 508 KB Output is correct
30 Correct 510 ms 416 KB Output is correct
31 Correct 473 ms 416 KB Output is correct
32 Correct 474 ms 416 KB Output is correct
33 Correct 482 ms 420 KB Output is correct
34 Correct 270 ms 620 KB Output is correct
35 Correct 368 ms 636 KB Output is correct
36 Correct 406 ms 716 KB Output is correct
37 Correct 432 ms 628 KB Output is correct
38 Correct 428 ms 616 KB Output is correct
39 Correct 451 ms 588 KB Output is correct
40 Correct 441 ms 596 KB Output is correct
41 Correct 410 ms 752 KB Output is correct
42 Correct 65 ms 548 KB Output is correct
43 Correct 90 ms 544 KB Output is correct
44 Correct 127 ms 548 KB Output is correct
45 Correct 156 ms 548 KB Output is correct
46 Correct 292 ms 512 KB Output is correct
47 Correct 295 ms 544 KB Output is correct
48 Correct 68 ms 532 KB Output is correct
49 Correct 41 ms 672 KB Output is correct