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there are two cases where the loop breaks 1st one is when fast pointer reaches to NULL(which means while(fast->next!=NULL) ) and 2nd is when slow==fast.
check these condition.
if(fast->next==NULL)
return false;
else true;
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Cycle Detection
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there are two cases where the loop breaks 1st one is when fast pointer reaches to NULL(which means while(fast->next!=NULL) ) and 2nd is when slow==fast. check these condition. if(fast->next==NULL) return false; else true;