Submission #857791

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
857791	2023-10-07 01:35:29	caohung06	Putovanje (COCI20_putovanje)	C++17	110 / 110	103 ms	34640 KiB

putovanje

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
#include <bits/stdc++.h>
#define ll long long
#define f first
#define s second
using namespace std;
vector<pair<ll,ll>> g[100050];
ll p[100050][22],h[100050],n,u,v,c1[100050],c2[100050],dem[100050],d[100050],ans;
ll getbit(ll x,ll k)
{
    return (x>>k)&1;
}
void dfs(int u)
{
    for(int v=0; v<g[u].size(); v++)
    {
        if(g[u][v].f!=p[u][0])
        {
            h[g[u][v].f]=h[u]+1;
            p[g[u][v].f][0]=u;
            for(int i=1; i<=18; i++)
            {
                p[g[u][v].f][i]=p[p[g[u][v].f][i-1]][i-1];
            }
            dfs(g[u][v].f);
        }
    }
}
ll lca(int u,int v)
{
    if(h[u]<h[v]) swap(u,v);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

putovanje.cpp: In function 'void dfs(int)':
putovanje.cpp:14:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     for(int v=0; v<g[u].size(); v++)
      |                  ~^~~~~~~~~~~~
putovanje.cpp: In function 'void dfs2(int, int)':
putovanje.cpp:53:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |     for(int v=0; v<g[u].size(); v++)
      |                  ~^~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 25 / 25
• Subtask 3: 65 / 65