- C Programming Examples
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- C Add Two Numbers
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- C Find Armstrong Numbers
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- C Delete Word from String
- C Frequency of Character
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- C Remove Spaces from String
- C Sort a String
- C Sort String in Alphabetical
- C Sort Words in Ascending
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- C Uppercase to Lowercase
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C Program to sort each Word from given String in Descending Order
In this article, we will learn about how to sort or arrange each word from any given string (by user at run-time) in descending order.
In this program, Each word is sorted character wise, For example, if the given string by user will be this is codescracker. Here we have total of three words (this, is and codescracker) present inside the string. Therefore after sorting each word, the string will become tsih si srrokeedccca.
In this way, following program will sort each and every words from the given string in descending order (alphabetical wise).
#include<stdio.h> #include<conio.h> int main() { char str[100], chTemp; int i, j, len; printf("Enter any string: "); gets(str); len = strlen(str); for(i=0; i<len; i++) { for(j=0; j<(len-1); j++) { if(str[j]>=65 && str[j]<=90) { if(str[j+1]>=65 && str[j+1]<=90) { if(str[j]<str[j+1]) { chTemp = str[j]; str[j] = str[j+1]; str[j+1] = chTemp; } } } if(str[j]>=97 && str[j]<=122) { if(str[j+1]>=97 && str[j+1]<=122) { if(str[j]<str[j+1]) { chTemp = str[j]; str[j] = str[j+1]; str[j+1] = chTemp; } } } } } printf("\nSame string with each word in descending order:\n%s", str); getch(); return 0; }
The program was written under Code::Blocks IDE, therefore after successful build and run, here is its sample run:
Now supply any string say how are you and press ENTER key to see the same string with its each word sorted in descending order:
Here are the list of some main steps used in above program:
- Receive any string using gets() function
- Now find length of the given string using strlen() function of string.h library
- Store the length of given string inside any variable say len
- Create a for loop that starts from 0 to one less than the length of the string to compare its each and every character
- Inside the for loop, create another for loop to run or repeat comparing the string's each and every character
- Inside the second for loop, be confirm that both the character is an alphabet or not, to compare and reverse only when first character is less than the second character or second character is less than the third character and so on.
- Let's suppose if user supplies the string say codescracker, then c is compared with o first, as c is less than p, therefore the reverse operation gets performed, and now the string will become ocdescracker after first check and reverse, now again the second character, that is c is compared with the third character d, here again c is less than d, then again the reverse operation gets performed, and d goes to c's position and c goes to d's position, and then string will become odcescracker and so on
- In this way, all the characters of the string gets sorted in descending order
- Here, we have used two for loop to do comparing and reversing (if previous is less than the next character) two times from start to end
- Finally print the value of string on output screen which will be the same string but arranged in descending order
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