what is restricted permutation , with explain
Answers
Answer:
A Restricted permutation is a special type of permutation in which certain types of objects or data are always included or excluded and if they can come together or always stay apart.The number of permutations of 'n'things ,taken 'r' at a time,when 'm' specified things always come together =m!*(n-m+1)!
Answer:
A permutation is an ordering of a set of objects. When additional restrictions are imposed, the situation is transformed into a problem about permutations with restrictions. Most commonly, the restriction is that only a small number of objects are to be considered, meaning that not all the objects need to be ordered. Other common types of restrictions include restricting the type of objects that can be adjacent to one another, or changing the ordering mechanism from a line to another topology (e.g. a round table instead of a line, or a keychain instead of a ring)...