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Problem Set 9 - Strings

The document contains 15 string related problems of varying difficulty levels that involve operations like finding the length of a string, concatenating strings, counting vowels/words, reversing a string, converting case, toggling case, sorting strings, counting character occurrences, checking palindromes, adding digits, counting word occurrences, removing repeated characters, finding maximum occurring character, and reversing words in a string. Sample inputs and outputs are provided for each problem.

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145 views4 pages

Problem Set 9 - Strings

The document contains 15 string related problems of varying difficulty levels that involve operations like finding the length of a string, concatenating strings, counting vowels/words, reversing a string, converting case, toggling case, sorting strings, counting character occurrences, checking palindromes, adding digits, counting word occurrences, removing repeated characters, finding maximum occurring character, and reversing words in a string. Sample inputs and outputs are provided for each problem.

Uploaded by

Aowiza
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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String related problems

(Total 15 questions)

SL Problem statement Difficulty


levels

1. Write a program in C to find the length of a string without using any library function. *

Sample Input Sample Output

“My name is andy” 15

“Abc 123 7&*&*” 13

2. Write a program in C to concatenate two strings without using any library function. *

Sample Input Sample Output

“My name ” “My name is andy”


“is andy”

“123abc” “123abc*A*B”
“*A*B”

3. Write a program in C to count how many vowels are there in a string. *

Sample Input Sample Output

“My name is andy” 4

“Are you READY yet?” 7

4. Write a program in C to count the number of words in a string. *

Sample Input Sample Output

“My name is andy” 4

“Abc 123 7&*&*” 3

5. Write a program in C to find the reverse of a string. **


Sample Input Sample Output

“My name is Andy” “ydnA si eman yM”

“Abc 123 7&*&*” “*&*&7 321 cbA”

6. Write a program in C to convert lowercase string to uppercase. *

Sample Input Sample Output

“My name is andy” “MY NAME IS ANDY”

“& I am 20 years old” “& I AM 20 YEARS OLD”

7. Write a program in C to toggle the case of each character in a string. *

Sample Input Sample Output

“My name is Andy” “mY NAME IS aNDY”

“& I am 20 Years old” “& i AM 20 yEARS OLD”

8. Write a program in C to sort a string array in alphabetic order. **

Sample Input Sample Output

“My name is Andy” “ AMadeimnnsyy”

“Abc 123 7&*&*” “ &&**1237Abc”

9. Write a program in C to count the occurrences of a character in a string regardless of its case. *

Sample Input Sample Output

“My name is Andy” 2


‘a’

“WELCOME to CSE, everyone” 6


‘E’

10. Write a program in C to check whether a string is a palindrome or not. **


Sample Input Sample Output

“My name is andy” no

“madam” yes

11. Write a program in C to add the digits in a string. **

Sample Input Sample Output

“I am 20 years old” 2

“Abc 123 7&*&*” 13

12. Write a program in C to count occurrences of a word in a string. ***

Sample Input Sample Output

“I liked the story about the sad giant” 2


“the”

“It is what it is” 1


“it”

13. Write a program in C to remove all repeated characters in a string. ***

Sample Input Sample Output

“i like programming in C” “i lkeprogamnC”

“My name is Andy” “My nameisAd”

14. Write a program in C to find the maximum occurring character in a string. ***

Sample Input Sample Output

“Welcome to CSE” E (or e)

“mmmttssarrrddd” D (or d)

“mmmttssarrrDDd” D (or d)

15. Write a program in C to reverse the words in a string. ***


Sample Input Sample Output

“My name is Andy” “Andy is name My”

“Abc 123 7&*&*” “7&*&* 123 Abc”

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