Playing With Characters - Hackerrank Solution in C

Objective

This challenge will help you to learn how to take a character, a string and a sentence as input in C.

To take a single character

as input, you can use scanf("%c", &ch ); and printf("%c", ch) writes a character specified by the argument char to stdout

char ch;
scanf("%c", &ch);
printf("%c", ch);

This piece of code prints the character

You can take a string as input in C using scanf(“%s”, s). But, it accepts string only until it finds the first space.

In order to take a line as input, you can use scanf("%[^\n]%*c", s); where

is defined as char s[MAX_LEN] where

is the maximum size of

. Here, [] is the scanset character. ^\n stands for taking input until a newline isn't encountered. Then, with this %*c, it reads the newline character and here, the used * indicates that this newline character is discarded.

Note: After inputting the character and the string, inputting the sentence by the above mentioned statement won't work. This is because, at the end of each line, a new line character (\n) is present. So, the statement: scanf("%[^\n]%*c", s); will not work because the last statement will read a newline character from the previous line. This can be handled in a variety of ways and one of them being: scanf("\n"); before the last statement.

Task

You have to print the character,

, in the first line. Then print

in next line. In the last line print the sentence,

Input Format

First, take a character,

as input.
Then take the string,

as input.
Lastly, take the sentence

as input.

Output Format

Print three lines of output. The first line prints the character,

.
The second line prints the string,

.
The third line prints the sentence,

Sample Input 0

C
Language
Welcome To C!!

Sample Output 0

Language

Welcome To C!!

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

#define MAX_LEN 128

int main() 
{
    char ch;
    char word[MAX_LEN];
    char sen[MAX_LEN];
    
    scanf("%c", &ch);
    scanf("%s\n", &word);
    scanf("%[^\n]%*c", &sen);
    
    printf("%c\n", ch);
    printf("%s\n", word);
    printf("%s\n", sen);

    return 0;
}