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Transpose_Graph
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76 lines (72 loc) · 1.02 KB
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import java.util.Scanner;
class Transpose_Graph
{
int v;
int [][]a;
Transpose_Graph(int v)
{
this.v=v;
a=new int[v][v];
for(int i=0;i<v;i++)
{
for(int j=0;j<v;j++)
{
a[i][j]=0;
}
}
}
void addEdge(int src,int dest)
{
a[src][dest]=1;
}
void transpose()
{
int [][]b=new int [v][v];
int i,j;
for(i=0;i<v;i++)
{
for(j=0;j<v;j++)
{
b[i][j]=0;
}
}
for(i=0;i<v;i++)
{
for(j=0;j<v;j++)
{
if(a[i][j]==1)
b[j][i]=1;
}
}
for(i=0;i<v;i++)
{
for(j=0;j<v;j++)
{
a[i][j]=b[i][j];
}
}
for(i=0;i<v;i++)
{
System.out.print(i);
for(j=0;j<v;j++)
{
if(a[i][j]==1)
System.out.print("->"+j);
}
System.out.println();
}
}
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int v=sc.nextInt();
int e=sc.nextInt();
Transpose_Graph g=new Transpose_Graph(v);
for(int i=1;i<=e;i++)
{
int src=sc.nextInt();
int dest=sc.nextInt();
g.addEdge(src,dest);
}
g.transpose();
}
}