C Programming: Split string by space into words
31. Split String by Spaces
Write a program in C to split strings by space into words.
Sample Solution:
C Code:
#include <stdio.h>
#include <string.h>
int main() {
char str1[100]; // String input
char newString[10][10]; // 2D array to store split strings
int i, j, ctr; // Counters and index variables
printf("\n\n Split string by space into words :\n");
printf("---------------------------------------\n");
printf(" Input a string : ");
fgets(str1, sizeof str1, stdin); // Read input string
j = 0; // Initialize column index of newString array
ctr = 0; // Initialize word count
// Loop through each character in the input string
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'; // Null-terminate the word
ctr++; // Move to the next word
j = 0; // Reset column index to 0 for the next word
} else {
newString[ctr][j] = str1[i]; // Store the character into newString
j++; // Move to the next character within the word
}
}
printf("\n Strings or words after split by space are :\n");
// Display the split words stored in newString array
for (i = 0; i < ctr; i++) {
printf(" %s\n", newString[i]);
}
return 0;
}
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:
For more Practice: Solve these Related Problems:
- Write a C program to split an input string into words using a manual parsing approach without strtok().
- Write a C program to separate words in a sentence by detecting spaces and storing them in an array.
- Write a C program to split a string into tokens and then print each token on a new line.
- Write a C program to split a string by spaces and then sort the resulting words alphabetically.
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