Determine if a sentence is a pangram. A pangram (Greek: παν γράμμα, pan gramma, "every letter") is a sentence using every letter of the alphabet at least once. The best known English pangram is: The ...

#Function to check if a given string is a pangram. A pangram is a sentence/string that contains all the letters of the alphabet. # Assumptions: 1. The string contains only letters and spaces.