Submission #498627

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
498627	2021-12-25 21:04:01	Johann	Railway (BOI17_railway)	C++14	100 / 100	243 ms	65588 KiB

railway

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
// https://oj.uz/problem/view/BOI17_railway
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define tiii tuple<int,int,int>
#define vi vector<ll>
#define vvi vector<vi>
#define vpii vector<pii>
#define vtiii vector<tiii>
void dfs(vvi & adj, int v, int p, vi & in, vi & out, vvi & vorg, int & cnt, vi & depth, int d) {
    in[v] = cnt++;
    vorg[v].push_back(p); // erster vorg
    for (int i = 1; 1 << (i-1) < vorg.size(); i++) {
        vorg[v].push_back(vorg[vorg[v][i-1]][i-1]);
    }
    depth[v] = d;
    for (int u : adj[v]) {
        if (u == p) continue;
        dfs(adj, u, v, in, out, vorg, cnt, depth, d+1);
    }
    out[v] = cnt++;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

railway.cpp: In function 'void dfs(std::vector<std::vector<long long int> >&, int, int, std::vector<long long int>&, std::vector<long long int>&, std::vector<std::vector<long long int> >&, int&, std::vector<long long int>&, int)':
railway.cpp:18:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for (int i = 1; 1 << (i-1) < vorg.size(); i++) {
      |                     ~~~~~~~~~~~^~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25