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pcycles.cpp
60 lines (44 loc) · 906 Bytes
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pcycles.cpp
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#include <stdio.h>
int main()
{
int N,counter;
int visited[1001]={0};
scanf("%d",&N);
int arr[N+1];
int op[N][N];
int i,j,k;
for(i=1;i<=N;i++)
scanf("%d",&arr[i]);
counter=0;
for(i=1;i<=N;i++)
{
if(visited[i]==0)
{
j=i;
k=0;
do{
op[counter][k]=j;
//printf("%d ",j);
visited[j]=1;
j=arr[j];
k++;
}while(j!=i);
op[counter][k]=i;
counter++;
//printf("\n");
}
}
printf("%d\n ",counter);//watch the space after newline char
for(i=0;i<counter;i++)
{
j=0;
do
{
printf("%d ",op[i][j]);
j++;
}while(op[i][j]!=op[i][0]);
printf("%d ",op[i][0]);
printf("\n");
}
return 0;
}