Pagini recente » Cod sursa (job #891317) | Cod sursa (job #743083) | Cod sursa (job #520366) | Cod sursa (job #2703724) | Cod sursa (job #1961533)
#include <fstream>
#include <cstring>
#include<vector>
#include <climits>
#define MAXN 50002
using namespace std;
ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");
int x, y, z, n, m;
int cost[MAXN], viz[MAXN];
struct punct{
int c, graf;
};
vector <punct> G[MAXN];
inline void Read()
{
fin >> n >> m;
for (int i = 1; i <= m; i++)
{
fin >> x >> y >> z;
G[x].push_back({z, y});
}
for (int i = 1; i <= n; i++)
cost[i] = INT_MAX;
}
inline void Solve()
{
int minim, poz;
cost[1] = 0;
for (int i = 1; i <= n; i++)
{
minim = INT_MAX;
for (int j = 1; j <= n; j++)
{
if (cost[j] < minim && viz[j] == 0)
{
minim = cost[j];
poz = j;
}
}
//int l = G[poz].size();
for (vector <punct> :: iterator j = G[poz].begin(); j != G[poz].end(); j++)
{
if (viz[(*j).graf] == 0)
{
if (cost[poz] + (*j).c < cost[(*j).graf])
{
cost[(*j).graf] = cost[poz] + (*j).c;
}
}
}
viz[poz] = 1;
}
}
inline void Afisare()
{
for (int i = 2; i <= n; i++)
{
fout << cost[i] << " ";
}
}
int main ()
{
Read();
Solve();
Afisare();
fin.close(); fout.close(); return 0;
}