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- #include <stdio.h>
- #include <stdlib.h>
- #define N 1000
- int main()
- {
- int i,v[N],p,q,t;
- for(i=0;i<N;i++) v[i]=i;
- puts("Input Pair p q");
- while ((scanf("%d %d\n",&p,&q))==2){
- if (v[p]==v[q]) {
- puts("Node already connected");
- continue;
- }
- else {
- for(t=v[p],i=0;i<N;i++)
- if(v[i]==t) v[i]=v[q];
- }
- puts("Input Pair p q");
- }
- return 0;
- }
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