Valid Phone Numbers
LeetCode 193 | Difficulty: Easy
Word Frequency
LeetCode 192 | Difficulty: Medium
Shell & Miscellaneous Problems
Bash/shell scripting problems — word frequency counting and phone-number validation with text-processing one-liners.
Bash/shell scripting problems — word frequency counting and phone-number validation with text-processing one-liners.
LeetCode 193 | Difficulty: Easy
LeetCode 192 | Difficulty: Medium