Submission #340075

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
340075	2020-12-26 19:25:59	lukameladze	One-Way Streets (CEOI17_oneway)	C++14	100 / 100	836 ms	78384 KiB

oneway

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 f first
#define s second
#define pb push_back
using namespace std;
const int N=2e5+5;
long long u,vv,n,m,t,lc,a[N],out[N],lv[N],b[N],fix[N],in[N],tin,p[N][20],low[N],brd[N];
vector < pair <long long, long long > > v[N];
map < pair < int, int >, int > ind;
long long pa[N];
map < pair <long long, long long > , long long> ans,brdg;
char ch[N];
int get_col(int a)
{
    if (a==pa[a]) return a;
    return pa[a]=get_col(pa[a]);
}
void dfs(int a, int b)
{
    fix[a]=1;
    tin++;
    in[a]=low[a]=tin;
    lv[a]=lv[b]+1;
    p[a][0]=b;
    for (int i=1; i<=18; i++)
    {
        p[a][i]=p[p[a][i-1]][i-1];
    }
    for (int i=0; i<v[a].size(); i++)
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

oneway.cpp: In function 'void dfs(int, int)':
oneway.cpp:30:20: 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]
   30 |     for (int i=0; i<v[a].size(); i++)
      |                   ~^~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40