1327 | 2022. 05. 13 20:41:58 | nkdorka1212 | Hálózati átvitel | cpp11 | Elfogadva 50/50 | 50ms | 7812 KiB |
#include <bits/stdc++.h>
using namespace std;
int n,m,k,h;
vector<vector<pair<int,int>>>g;
vector<int>velocity;
vector<bool>rewrote;
vector<int>velocity2;
void bellmann_ford()
{
for(int i=1;i<=h;i++)
{
//rewrote.assign(n+1,0);
for(int j=1;j<=n;j++)
{
for(auto x:g[j])
{
if(velocity[x.first]<min(velocity2[j],x.second)&& !rewrote[j])
{
velocity[x.first]=min(velocity2[j],x.second);
//rewrote[x.first]=true;
}
}
}
velocity2=velocity;
}
}
int main()
{
cin>>n>>m>>k>>h;
velocity.resize(n+1,-1);
velocity2.resize(n+1,-1);
g.resize(n+1);
rewrote.resize(n+1,0);
for(int i=1;i<=m;i++)
{
int u,v,w;
cin>>u>>v>>w;
g[u].push_back({v,w});
g[v].push_back({u,w});
}
velocity[k]=INT_MAX;
velocity2[k]=INT_MAX;
bellmann_ford();
for(int i=1;i<=n;i++)
{
if(i==k)
{
cout<<0<<'\n';
}else
{
cout<<velocity[i]<<'\n';
}
}
return 0;
}
/*4 6 2 2
1 2 1
2 3 1
2 4 1
1 3 1
1 4 5
3 4 5
4 5 1 2
1 3 1
1 2 1
2 3 3
3 4 3
1 4 3
6 8 1 3
1 3 1
1 2 1
2 3 3
3 4 3
1 4 3
1 5 5
5 6 5
2 6 5
7 9 2 3
2 1 2
2 4 4
2 4 4
1 3 3
3 5 2
4 5 3
4 6 5
6 7 8
1 7 9
3 2 1 1
1 2 4
2 3 4
4 5 1 2
1 2 3
1 3 2
1 4 1
2 3 3
3 4 2
*/
Részfeladat | Összpont | Teszt | Verdikt | Idő | Memória | ||
---|---|---|---|---|---|---|---|
base | 50/50 | ||||||
1 | Elfogadva | 0/0 | 2ms | 1868 KiB | |||
2 | Elfogadva | 0/0 | 1ms | 1888 KiB | |||
3 | Elfogadva | 1/1 | 1ms | 1912 KiB | |||
4 | Elfogadva | 1/1 | 1ms | 1924 KiB | |||
5 | Elfogadva | 2/2 | 1ms | 1924 KiB | |||
6 | Elfogadva | 2/2 | 2ms | 1944 KiB | |||
7 | Elfogadva | 2/2 | 2ms | 1968 KiB | |||
8 | Elfogadva | 2/2 | 2ms | 1988 KiB | |||
9 | Elfogadva | 1/1 | 2ms | 2028 KiB | |||
10 | Elfogadva | 1/1 | 3ms | 2060 KiB | |||
11 | Elfogadva | 1/1 | 6ms | 2284 KiB | |||
12 | Elfogadva | 1/1 | 8ms | 2492 KiB | |||
13 | Elfogadva | 2/2 | 4ms | 2408 KiB | |||
14 | Elfogadva | 2/2 | 8ms | 2608 KiB | |||
15 | Elfogadva | 2/2 | 12ms | 2940 KiB | |||
16 | Elfogadva | 2/2 | 16ms | 3072 KiB | |||
17 | Elfogadva | 2/2 | 12ms | 3204 KiB | |||
18 | Elfogadva | 2/2 | 13ms | 3332 KiB | |||
19 | Elfogadva | 2/2 | 12ms | 3464 KiB | |||
20 | Elfogadva | 2/2 | 14ms | 3600 KiB | |||
21 | Elfogadva | 1/1 | 21ms | 4048 KiB | |||
22 | Elfogadva | 1/1 | 39ms | 4656 KiB | |||
23 | Elfogadva | 1/1 | 32ms | 4968 KiB | |||
24 | Elfogadva | 1/1 | 39ms | 5372 KiB | |||
25 | Elfogadva | 2/2 | 45ms | 5852 KiB | |||
26 | Elfogadva | 2/2 | 45ms | 6136 KiB | |||
27 | Elfogadva | 2/2 | 50ms | 6548 KiB | |||
28 | Elfogadva | 2/2 | 27ms | 6724 KiB | |||
29 | Elfogadva | 2/2 | 27ms | 7008 KiB | |||
30 | Elfogadva | 2/2 | 35ms | 7280 KiB | |||
31 | Elfogadva | 2/2 | 30ms | 7544 KiB | |||
32 | Elfogadva | 2/2 | 30ms | 7812 KiB |