 New update is available. Click here to update. Close
Topic list
Generate All Strings
MEDIUM
25 mins
Other topics
Problem solved
Skill meter Strings
-
- Matrices (2D Arrays)
-
- -
- Sorting
-
- Binary Search
-
- Stacks & Queues
-
- Trees
-
- Graph
-
- Dynamic Programming
-
- Greedy
-
- Tries
-
- Arrays
-
- SQL
-
- Binary Search Trees
-
- Heap
-
- Bit Manipulation
-
-
Solve problems & track your progress
Checkout your overall progress in every topic here
Become Sensei
in DSA topics
Open the topic and solve more problems associated with it to improve your skills
Check out the skill meter for every topic
See how many problems you are left with to solve for cracking any stage. Score more than zero to get your progress counted.

# Generate All Strings

Medium 0/80
Avg time to solve 25 mins
Success Rate 52 % Share 0 upvotes

## Problem Statement

#### You are given a string ‘S’ of length ‘N’ which consists of digits from 0 to 9 only. If the mapping of characters from a to z is like a = 1, b = 2, c = 3…. Z = 26. You need to convert the given string of digits into the string of characters using the mapping.

##### Example:
``````‘S’ = “112”.

Output: [aab, al, kb]

The possible ways to convert the given strings is:
aab => a = 1, a = 1, b = 2,
al => a = 1, l = 12
kb => k = 11, b = 2
Hence, the final array is: [aab, al, kb].
``````
Detailed explanation ( Input/output format, Notes, Constraints, Images ) ##### Sample Input 1 :
``````2
1123
125
``````
##### Sample Output 1 :
``````aabc aaw alc kbc kw
abe ay le
``````
##### Explanation Of Sample Input 1 :
``````For the first case:
aabc => a=1, a=1, b=2, c=3
aaw => a=1, a=1, w=23
alc => a=1, l=12, c=3
kbc => k=11, b=2, c=3
kw => k=11, w=23
Sorting the strings in lexicographical order, so the final output is [aabc, aaw, alc, kbc, kw].

For the second case:
abe => a=1, b=2, e=5
le => l=12, e=5
Sorting the strings in lexicographical order, the final output is [abe le].
``````
##### Sample Input 2 :
``````2
721023
871121
``````
##### Sample Output 2 :
``````gbjbc gbjw
hgaaba hgaau hgala hgkba hgku
``````  Auto Console