ML / SML Code only please! If ELSE FORMAT. DO NOT COPY USE THE OTHER ANSWERS ON CHEGG. THEY'RE WRONG. Write a function delnthc to delete the n-th character of a string. You may assume that the input...

ML / SML Code only please! If ELSE FORMAT. DO NOT COPY USE THE OTHER ANSWERS ON CHEGG. THEY'RE WRONG.

1. Write a functiondelnthc to delete the n-th character of a string. You may assume that the input string is always longer than n.
   
   delnthc("abcdef", 4) → "abcef"
   


2. Write a functionmultin to take a list of three [a,b,c] and multiplies a by b c times.Function definition must look like multin(L)! CAN NOT USE multin(a,b,c). You have to use let-in-end in if-then-else style NOT @
   
   CAN NOT USE function power(a,b) =a*a*a...,
   
   
   multin [2,3,5] → [2,6,18,54,162,486]
   


3. Write a functionpairStarto form a new string where identical chars that
   are adjacent in the original string are separated from each other by a "*"
   
   pairStar("xxyy") → "x*xy*y", pairStar("aaaa") → "a*a*a*a"