SCHOOL OF CODE BUILDERS: C program to print words in a sentence

C program to print words in a sentence

Output:

Enter a sentence:
CodeRegister is a learning portal for computer science aspirants!

The words in the sentence are:
 CodeRegister
 is
 a
 learning
 portal
 for
 computer
 science
 aspirants!

Implementation:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* setting the maximum size for the character array */
#define MAX 1000000

int main(void) {
 char *s,*v[1000];
 int i,spaces=1,j,k;
 
 /* allocate the memory for getting the input string */
 s=(char*)malloc(sizeof(char)*MAX);
 
 printf("Enter a sentence:\n");
 /* get the input string or sentence */
 gets(s);
 
 /* To count the number of words in the given sentence 
    number of words = number of spaces + 1
    so, here counting the number of spaces in the sentence 
    */
 i=0;
 while(*(s+i))
 {
  if(*(s+i)==' ')
   spaces++;
  i++;
 }
 
 /* allocate memory for the two dimensional array of strings */
 for(i=0;i<spaces;i++)
  *(v+i)=(char*)malloc(sizeof(char)*1000);
 
 /* split the entered sentence into words 
    & copy every word to two dimensional array
    For example:
            consider the sentence,
    CodeRegister is a learning portal for computer science aspirants!
    
    Now, pointer s="CodeRegister is a learning portal for computer science aspirants!"
    After splitting,
    pointer *v[] will be as:
    *v[0]="CodeRegister"
    *v[1]="is"
    *v[2]="a"
    *v[3]="learning"
    *v[4]="portal"
    *v[5]="for"
    *v[6]="computer"
    *v[7]="science"
    *v[8]="aspirants!"
    */
 i=0,j=0,k=0;
 while(*(s+k))
 {
  if(*(s+k)==' ')
  {
   *(*(v+i)+j)='\0';
   j=0;
   i++;
   k++;
   continue;
  }
  *(*(v+i)+j)=*(s+k);
  j++;
  k++;
 }
 *(*(v+i)+j)='\0';
 
 /* printing the words in the sentence one per line */
 printf("\nThe words in the sentence are:\n");
 for(i=0;i<spaces;i++)
 {
  printf("\t%s\n",*(v+i));
 }
 
 return 0;
}

Pages

C program to print words in a sentence