Python | Repeat String till K
Sometimes, while working with strings, we might encounter a use case in which we need to repeat our string to the size of K, even though the last string might not be complete, but has to stop as the size of string becomes K. The problem of repeating string K times, is comparatively simpler than this problem. Let’s discuss way outs we can perform to solve this problem.
Method #1 : Using list slicing and // operator
This task can be performed using the above tools. In this we just multiply the string till it becomes greater than or equal to K, and then just omit the slice of extra string using the list slicing method.
# Python3 code to demonstrate # Repeat string till K # using list slicing and // operator # initializing string test_string = "GeeksforGeeks" # initializing K K = 30 # printing original string print("The original string : " + str(test_string)) # using list slicing and // operator # Repeat string till K res = (test_string * (K//len(test_string)+ 1))[:K] # print result print("String after performing repeatition : " + res) |
chevron_right
filter_none
Output :
The original string : GeeksforGeeks String after performing repeatition : GeeksforGeeksGeeksforGeeksGeek
Method #2 : Using divmod() + list slicing
The division applied in the above method can be substituted in this method with the divmod function, which improves code readability with the cost of 40% of performance degradation.
# Python3 code to demonstrate # Repeat string till K # using divmod() + list slicing # initializing string test_string = "GeeksforGeeks" # initializing K K = 30 # printing original string print("The original string : " + str(test_string)) # using divmod() + list slicing # Repeat string till K div, mod = divmod(K, len(test_string)) res = test_string * div + test_string[:mod] # print result print("String after performing repeatition : " + res) |
chevron_right
filter_none
Output :
The original string : GeeksforGeeks String after performing repeatition : GeeksforGeeksGeeksforGeeksGeek
Recommended Posts:
- numpy.repeat() in Python
- Python | Pandas Series.repeat()
- Python | Numpy matrix.repeat()
- Python | Pandas Series.str.repeat()
- Python | Pandas Index.repeat()
- Numpy recarray.repeat() function | Python
- Python | Repeat each element K times in list
- Python | Repeat and Multiply list extension
- Python | Getting sublist element till N
- Python | Prefix Sum Subarray till False value
- Python | Get elements till particular element in list
- Python | Combinations of elements till size N in list
- String slicing in Python to check if a string can become empty by recursive deletion
- Python | Check if given string can be formed by concatenating string elements of list
- Python | Sorting string using order defined by another string
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.
