Longest same-results sequence of heads or tails

Exercise Type: Implementation

Consider this vector of coin toss results

tosses <- c("H", "T", "H", "T", "H", "T", "T", "T", "H", "T")
tosses

[1] "H" "T" "H" "T" "H" "T" "T" "T" "H" "T"

Instruction

Calculate the highest number of coin tosses when the result was the same in a sequence (either heads or tails). Implement a function that returns the length of this longest streak as a single integer value!

name	LongestStreak()
arguments	x : vector of heads and tails
return	A single positive integer

Test your function with the tosses object above (and your own). In this case, the result should be 3!