Printing Tokens HackerRank Solution
In this tutorial we'll solve Printing Tokens problem of HackerRank.
Given a sentence, s, print each word of the sentence in a new line.
Input Format
The first and only line contains a sentence, s.
Constraints
1 <= len(s) <= 1000
Output Format
Print each word of the sentence in a new line.
Sample Input 0
This is C
Sample Output 0
This
is
C
Explanation 0
In the given string, there are three words ["This", "is", "C"]. We have to print each of these words in a new line.
Sample Input 1
Learning C is fun
Sample Output 1
Learning
C
is
fun
Sample Input 2
How is that
Sample Output 2
How
is
that
Solution:
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
int main() {
char *s;
s = malloc(1024 * sizeof(char));
scanf("%[^\n]", s);
s = realloc(s, strlen(s) + 1);
//Write your logic to print the tokens of the sentence here.
for (char *c = s; *c != NULL; c++) {
if (*c == ' ') {
*c = '\n';
}
}
printf("%s", s);
return 0;
}
Steps used in solving the problem -
-
First we have imported required header files.
-
Then, we created the main function. we declared an pointer variable s inside our function.
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Then, we used malloc() to dynamically allocate memory to our created variable.
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Then, we used "scanf" function to read the user input and stored it into s. we also used reallocate() function to reallocate memory for s.
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After this, we used a for loop to iterates over the characters of the string and if condition to check if the character pointed by c is a space character.
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At last, we used printf function to print the modified string.
