oj.uz

Submission #404348

# Submission time Handle Problem Language Result Execution time Memory
404348 2021-05-14T08:42:27 Z AmineTrabelsi Stations (IOI20_stations) C++14
100 / 100
 1190 ms 856 KB 
#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
const int Mx = 1010;
int timer = 0;
void dfs(int node,int par,vector<int> &labels,vector<vector<int>> &tr,bool parity){
    if(parity)labels[node] = timer++;
    for(auto i:tr[node]){
        if(i != par){
            dfs(i,node,labels,tr,!parity);
        }
    }
    if(!parity)labels[node] = timer++;
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    timer = 0;
    vector<int> labels(n);
    vector<vector<int>> tr(n+1,vector<int>(0));
    for (int i = 0; i < n-1; i++) {
        tr[u[i]].push_back(v[i]);
        tr[v[i]].push_back(u[i]);
    }
    dfs(0,-1,labels,tr,1);
    return labels;
}
int find_next_station(int s, int t, vector<int> c) {
    if ((int)c.size() == 1) return c.back();
    if (c.front() > s){ 
        // s is tin
        int l = s, r = c[(int)c.size() - 2];
        if (l > t || r < t) return c.back(); // t out go to parent
 
        int pos = lower_bound(c.begin(), c.end(), t) - c.begin(); // go to subtree where t
 
        return c[pos];
    } else { 
        // s is tout
        int l = c[1], r = s;
        if (l > t || r < t) return c.front(); // t out go to parent
 
        int pos = upper_bound(c.begin(), c.end(), t) - c.begin() - 1; // go to subtree where t
 
        return c[pos];
    }
 
    return c[0];
}
// c sorted
// small c deeper in the tree
// big c high in tree

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 647 ms 616 KB Output is correct
2 Correct 568 ms 708 KB Output is correct
3 Correct 1190 ms 612 KB Output is correct
4 Correct 751 ms 528 KB Output is correct
5 Correct 589 ms 512 KB Output is correct
6 Correct 527 ms 616 KB Output is correct
7 Correct 578 ms 528 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 5 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 565 ms 604 KB Output is correct
2 Correct 682 ms 528 KB Output is correct
3 Correct 1079 ms 400 KB Output is correct
4 Correct 745 ms 480 KB Output is correct
5 Correct 705 ms 484 KB Output is correct
6 Correct 528 ms 528 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 532 ms 616 KB Output is correct
2 Correct 529 ms 664 KB Output is correct
3 Correct 1077 ms 400 KB Output is correct
4 Correct 725 ms 484 KB Output is correct
5 Correct 656 ms 488 KB Output is correct
6 Correct 630 ms 528 KB Output is correct
7 Correct 491 ms 528 KB Output is correct
8 Correct 3 ms 472 KB Output is correct
9 Correct 5 ms 400 KB Output is correct
10 Correct 2 ms 448 KB Output is correct
11 Correct 707 ms 496 KB Output is correct
12 Correct 482 ms 648 KB Output is correct
13 Correct 563 ms 624 KB Output is correct
14 Correct 491 ms 488 KB Output is correct
15 Correct 60 ms 448 KB Output is correct
16 Correct 111 ms 528 KB Output is correct
17 Correct 134 ms 572 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 958 ms 400 KB Output is correct
2 Correct 815 ms 468 KB Output is correct
3 Correct 655 ms 484 KB Output is correct
4 Correct 3 ms 468 KB Output is correct
5 Correct 3 ms 472 KB Output is correct
6 Correct 2 ms 480 KB Output is correct
7 Correct 703 ms 400 KB Output is correct
8 Correct 971 ms 456 KB Output is correct
9 Correct 817 ms 400 KB Output is correct
10 Correct 631 ms 400 KB Output is correct
11 Correct 6 ms 468 KB Output is correct
12 Correct 7 ms 468 KB Output is correct
13 Correct 4 ms 468 KB Output is correct
14 Correct 5 ms 468 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 567 ms 400 KB Output is correct
17 Correct 672 ms 400 KB Output is correct
18 Correct 544 ms 404 KB Output is correct
19 Correct 613 ms 400 KB Output is correct
20 Correct 634 ms 488 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 557 ms 732 KB Output is correct
2 Correct 604 ms 528 KB Output is correct
3 Correct 1061 ms 504 KB Output is correct
4 Correct 804 ms 400 KB Output is correct
5 Correct 635 ms 492 KB Output is correct
6 Correct 492 ms 520 KB Output is correct
7 Correct 576 ms 528 KB Output is correct
8 Correct 3 ms 468 KB Output is correct
9 Correct 7 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 598 ms 480 KB Output is correct
12 Correct 572 ms 488 KB Output is correct
13 Correct 1117 ms 468 KB Output is correct
14 Correct 739 ms 400 KB Output is correct
15 Correct 636 ms 488 KB Output is correct
16 Correct 501 ms 488 KB Output is correct
17 Correct 562 ms 484 KB Output is correct
18 Correct 506 ms 672 KB Output is correct
19 Correct 541 ms 648 KB Output is correct
20 Correct 538 ms 656 KB Output is correct
21 Correct 72 ms 404 KB Output is correct
22 Correct 67 ms 528 KB Output is correct
23 Correct 116 ms 556 KB Output is correct
24 Correct 6 ms 468 KB Output is correct
25 Correct 7 ms 508 KB Output is correct
26 Correct 7 ms 464 KB Output is correct
27 Correct 5 ms 468 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 710 ms 508 KB Output is correct
30 Correct 590 ms 488 KB Output is correct
31 Correct 615 ms 400 KB Output is correct
32 Correct 618 ms 488 KB Output is correct
33 Correct 510 ms 488 KB Output is correct
34 Correct 316 ms 612 KB Output is correct
35 Correct 505 ms 724 KB Output is correct
36 Correct 568 ms 724 KB Output is correct
37 Correct 477 ms 564 KB Output is correct
38 Correct 623 ms 612 KB Output is correct
39 Correct 531 ms 604 KB Output is correct
40 Correct 563 ms 856 KB Output is correct
41 Correct 487 ms 608 KB Output is correct
42 Correct 62 ms 528 KB Output is correct
43 Correct 126 ms 492 KB Output is correct
44 Correct 131 ms 492 KB Output is correct
45 Correct 195 ms 488 KB Output is correct
46 Correct 378 ms 484 KB Output is correct
47 Correct 366 ms 612 KB Output is correct
48 Correct 56 ms 528 KB Output is correct
49 Correct 61 ms 724 KB Output is correct