Pangram is a sentence containing every letter in the English alphabet. Given a string, find all characters that are missing from the string, i.e., the characters that can make string a Pangram. We need to print output in alphabetic order.
Input : welcome to geeksforgeeks Output : abdhijnpquvxyz Input : The quick brown fox jumps Output : adglvyz
We have discussed Pangram Checking. The idea is similar, we traverse given string and mark all visited characters. At the end, we print all those characters which are not visited.
Lowercase and Uppercase character are considered same.
Time Complexity : O(n)
Auxiliary Space : O(1)
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