oj.uz

Submission #305580

# Submission time Handle Problem Language Result Execution time Memory
305580 2020-09-23T15:25:16 Z kishtarn555 Stations (IOI20_stations) C++14
100 / 100
 1049 ms 1108 KB 
#include "stations.h"
#include <vector>
#include <algorithm>
#include <iostream>
using namespace std;

void dfs(int cur, int ant, int & dtime, int h, vector<int> &labels, vector<vector<int> > & adj) {
    if (h%2==0)
        labels[cur]=dtime++;
    for (int ni: adj[cur]) {
        if (ni==ant)continue;
        dfs(ni, cur, dtime, h+1, labels, adj);
    }

    if (h%2==1) {
        labels[cur]=dtime++;
    }

}
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++) {
		labels[i] = i;
	}
	int d =0;
	vector<vector<int> > adj(n);
	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, d, 0, labels, adj);

	return labels;
}

int find_next_station(int s, int t, std::vector<int> c) {
    sort(c.begin(), c.end());
    //cout << "("<<s<<","<<t<<")";

    for (int i =0; i < c.size(); i++) {
        if (c[i]==t)return t;
    }
    if (s==0) {
            int prev=0;
        for (int i=0; i < c.size(); i++) {
            if (prev <= t && t <= c[i])
                return c[i];
            prev=c[i];
        }
        return -1;
    }
    if (c[0] < s) {
        if (t < c[0] || t > s)return c[0];
        int prev=s;
        for (int i = c.size()-1; i >=0; i--){
            if (c[i] <= t && t <= prev) return c[i];
            prev=c[i];
        }
        return -2;
    } else {
        if(t<s||t>c[c.size()-1]) return c[c.size()-1];
        int prev=s;
        for (int i = 0; i < c.size(); i++) {
            if (prev<= t && t <= c[i])return c[i];
            prev=c[i];
        }
        return -3;

    }

}

Compilation message

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |  for (int i =0; i < u.size(); i++) {
      |                 ~~^~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |     for (int i =0; i < c.size(); i++) {
      |                    ~~^~~~~~~~~~
stations.cpp:45:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |         for (int i=0; i < c.size(); i++) {
      |                       ~~^~~~~~~~~~
stations.cpp:63:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |         for (int i = 0; i < c.size(); i++) {
      |                         ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 538 ms 1024 KB Output is correct
2 Correct 511 ms 1024 KB Output is correct
3 Correct 911 ms 640 KB Output is correct
4 Correct 743 ms 896 KB Output is correct
5 Correct 668 ms 648 KB Output is correct
6 Correct 556 ms 1024 KB Output is correct
7 Correct 463 ms 1024 KB Output is correct
8 Correct 3 ms 640 KB Output is correct
9 Correct 5 ms 800 KB Output is correct
10 Correct 2 ms 640 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 492 ms 752 KB Output is correct
2 Correct 582 ms 836 KB Output is correct
3 Correct 1016 ms 644 KB Output is correct
4 Correct 852 ms 640 KB Output is correct
5 Correct 749 ms 648 KB Output is correct
6 Correct 461 ms 760 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 594 ms 1024 KB Output is correct
2 Correct 495 ms 1024 KB Output is correct
3 Correct 893 ms 640 KB Output is correct
4 Correct 644 ms 640 KB Output is correct
5 Correct 689 ms 784 KB Output is correct
6 Correct 548 ms 1024 KB Output is correct
7 Correct 534 ms 1024 KB Output is correct
8 Correct 3 ms 648 KB Output is correct
9 Correct 5 ms 648 KB Output is correct
10 Correct 2 ms 672 KB Output is correct
11 Correct 688 ms 648 KB Output is correct
12 Correct 459 ms 1024 KB Output is correct
13 Correct 483 ms 1024 KB Output is correct
14 Correct 462 ms 832 KB Output is correct
15 Correct 77 ms 640 KB Output is correct
16 Correct 90 ms 996 KB Output is correct
17 Correct 141 ms 816 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 911 ms 768 KB Output is correct
2 Correct 828 ms 640 KB Output is correct
3 Correct 677 ms 640 KB Output is correct
4 Correct 3 ms 908 KB Output is correct
5 Correct 5 ms 640 KB Output is correct
6 Correct 2 ms 640 KB Output is correct
7 Correct 695 ms 752 KB Output is correct
8 Correct 912 ms 640 KB Output is correct
9 Correct 676 ms 648 KB Output is correct
10 Correct 622 ms 640 KB Output is correct
11 Correct 8 ms 640 KB Output is correct
12 Correct 8 ms 640 KB Output is correct
13 Correct 7 ms 640 KB Output is correct
14 Correct 5 ms 652 KB Output is correct
15 Correct 4 ms 652 KB Output is correct
16 Correct 524 ms 640 KB Output is correct
17 Correct 549 ms 768 KB Output is correct
18 Correct 564 ms 644 KB Output is correct
19 Correct 599 ms 648 KB Output is correct
20 Correct 544 ms 776 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 708 ms 1024 KB Output is correct
2 Correct 473 ms 1024 KB Output is correct
3 Correct 1029 ms 760 KB Output is correct
4 Correct 683 ms 648 KB Output is correct
5 Correct 590 ms 640 KB Output is correct
6 Correct 468 ms 1024 KB Output is correct
7 Correct 510 ms 768 KB Output is correct
8 Correct 3 ms 640 KB Output is correct
9 Correct 5 ms 640 KB Output is correct
10 Correct 2 ms 640 KB Output is correct
11 Correct 467 ms 780 KB Output is correct
12 Correct 662 ms 816 KB Output is correct
13 Correct 1049 ms 644 KB Output is correct
14 Correct 797 ms 640 KB Output is correct
15 Correct 603 ms 640 KB Output is correct
16 Correct 493 ms 828 KB Output is correct
17 Correct 609 ms 640 KB Output is correct
18 Correct 508 ms 768 KB Output is correct
19 Correct 460 ms 1024 KB Output is correct
20 Correct 445 ms 760 KB Output is correct
21 Correct 68 ms 1028 KB Output is correct
22 Correct 72 ms 768 KB Output is correct
23 Correct 112 ms 768 KB Output is correct
24 Correct 6 ms 904 KB Output is correct
25 Correct 6 ms 780 KB Output is correct
26 Correct 6 ms 640 KB Output is correct
27 Correct 5 ms 832 KB Output is correct
28 Correct 2 ms 644 KB Output is correct
29 Correct 530 ms 640 KB Output is correct
30 Correct 572 ms 640 KB Output is correct
31 Correct 561 ms 640 KB Output is correct
32 Correct 608 ms 652 KB Output is correct
33 Correct 555 ms 640 KB Output is correct
34 Correct 338 ms 1024 KB Output is correct
35 Correct 569 ms 1108 KB Output is correct
36 Correct 462 ms 1024 KB Output is correct
37 Correct 460 ms 800 KB Output is correct
38 Correct 604 ms 768 KB Output is correct
39 Correct 527 ms 788 KB Output is correct
40 Correct 546 ms 796 KB Output is correct
41 Correct 519 ms 948 KB Output is correct
42 Correct 66 ms 848 KB Output is correct
43 Correct 100 ms 824 KB Output is correct
44 Correct 177 ms 832 KB Output is correct
45 Correct 183 ms 768 KB Output is correct
46 Correct 340 ms 828 KB Output is correct
47 Correct 424 ms 784 KB Output is correct
48 Correct 84 ms 828 KB Output is correct
49 Correct 71 ms 768 KB Output is correct