Pagini recente » Cod sursa (job #871396) | Cod sursa (job #2288992) | Cod sursa (job #2357404) | Cod sursa (job #3036640) | Cod sursa (job #3197783)
#include <fstream>
#include <vector>
#include <queue>
#include <cstring>
#define nmax 1000
#define kmax 1000
const int INF = (1<<20);
using namespace std;
ifstream fin("pitici.in");
ofstream fout("pitici.out");
vector <int> stk;
struct hmch
{
int nod;
int c;
int nrd;
};
struct cmp
{
bool operator()(hmch a,hmch b)const
{
return a.c>b.c;
}
};
vector <pair<int,int>> v[nmax + 5];
int mc[nmax + 5][nmax + 5];
int d[nmax + 4][kmax + 4];
bool viz[nmax + 4];
int n,m,k;
void dfs(int nod)
{
viz[nod]=true;
for(auto& i : v[nod])
if(!viz[i.second])
dfs(i.second);
stk.push_back(nod);
}
int main()
{
fin>>n>>m>>k;
for(int i=1; i<=m; i++)
{
int x,y,c;
fin>>x>>y>>c;
mc[x][y]=c;
v[x].push_back({c,y});
}
dfs(1);
for(int i=1; i<=n; i++)
for(int j=1; j<=k; j++)
d[i][j]=INF;
d[n][1]=0;
memset(viz,0,sizeof(viz));
for(auto& nod : stk)
{
//fout<<nod<<' ';
priority_queue<hmch,vector<hmch>,cmp> q;
if(v[nod].empty())
continue;
for(auto& i : v[nod])
{
int vec = i.second;
int cost = i.first;
q.push({vec,d[vec][1] + cost,1});
}
for(int i=1;i<=k;i++)
{
if(q.empty())
break;
hmch x = q.top();
q.pop();
int vec = x.nod;
int cost = x.c;
int nrd = x.nrd;
d[nod][i] =cost;
q.push({vec,d[vec][nrd+1]+mc[nod][vec],nrd+1});
}
}
for(int i=1;i<=k;i++)
fout<<d[1][i]<<' ';
}