Below is the simple C program that will accept the character string from the user, calculates the length of the string and performs sorting operation on the string. The program will sort the character array in ascending order and display the result string (character array). Here we go, #include<stdio.h> #include<conio.h> void main() { clrscr(); int i,j; char *arr; //accept character array string from user printf(“Enter character string: “); gets(arr); //get the length of array in the variable counter int counter = 0; while(arr[counter] != NULL){ counter = counter + 1; } //apply ascending sorting algorithm for(i=0; i<counter; i++) { for(j=i;...