test case 1 is not passing
Keypad problem.....recursion
Check now.
what mistake i was doing??
When there is a 0… you have to include " " a white space.So i commented out line 18 to 22
is there any other way to do this question??
Recursion is only way since there are alot of combinations. Optimization can be done by Dynamic Programming.
You can refer this https://www.geeksforgeeks.org/mobile-numeric-keypad-problem/
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