Cod sursa(job #3036820)
Utilizator | Daria Popescu daria_p | Data | 25 martie 2023 10:20:05 |
---|---|---|---|
Problema | Sortare topologica | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.86 kb |
#include <fstream>
using namespace std;
int a[1001][1001],d[1001],c[1001];
ifstream fin("sortaret.in");
ofstream fout("sortaret.out");
int main()
{
int n,i,j,m,x,y,u,p;
fin>>n>>m;
for(i=1; i<=m; i++)
{
fin>>x>>y;
a[x][y]=1;
d[y]++;
}
u=1;
p=1;
for(i=1; i<=n; i++)
{
if(d[i]==0) {c[u]=i;u++;}
}
while(p<=u)
{
x=c[p];
for(i=1; i<=n; i++)
{
if(a[x][i]==1)
{
d[i]--;
if(d[i]==0)
{
c[u]=i;
u++;
}
}
}
p++;
}
/*int ok=0;
for(i=1; i<=n; i++)
{
if(d[i]>0) ok=1;
} */
for(i=1; i<=n; i++)
{
fout<<c[i]<<" ";
}
return 0;
}