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C Programming Exercises

C Programming: Split string by space into words

C String: Exercise-31 with Solution

Write a program in C to split string by space into words.
C Programming: Split string by space into words

Sample Solution:

C Code:

#include <stdio.h>
#include <string.h>
int main()
{
    char str1[100];
    char newString[10][10]; 
    int i,j,ctr;
       printf("\n\n Split string by space into words :\n");
       printf("---------------------------------------\n");    
 
    printf(" Input  a string : ");
    fgets(str1, sizeof str1, stdin);	
 
    j=0; ctr=0;
    for(i=0;i<=(strlen(str1));i++)
    {
        // if space or NULL found, assign NULL into newString[ctr]
        if(str1[i]==' '||str1[i]=='\0')
        {
            newString[ctr][j]='\0';
            ctr++;  //for next word
            j=0;    //for next word, init index to 0
        }
        else
        {
            newString[ctr][j]=str1[i];
            j++;
        }
    }
    printf("\n Strings or words after split by space are :\n");
    for(i=0;i < ctr;i++)
        printf(" %s\n",newString[i]);
    return 0;
}

Sample Output:

 Split string by space into words :                                                                                           
---------------------------------------                                                                                       
 Input  a string : this is a test string                                                                                      
                                                                                                                              
 Strings or words after split by space are :                                                                                  
 this                                                                                                                         
 is                                                                                                                           
 a                                                                                                                            
 test                                                                                                                         
 string 

Flowchart :

Flowchart: Split string by space into words

C Programming Code Editor:

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