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for(i=1;i<=n;i++) vis[i]=0; printf("ENTER THE SOURCE VERTEX :"); scanf("%d",&s); dfs(s,n); } void push(int item) { if(top=19) printf("Stack overflow "); else stack[++top]=item; } 2 } int pop() { int k; if(top-1) return(0); else { k=stack[top--]; return(k); } void dfs(int s,int n) { int i,k; push(s); vis[s]=1; k=pop(); if(k!=0)
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