(HackerRank) Write a Modular C Programming code to solve EXTRACT THE STRING, Write a modular C program that extracts part of a given string from a specified position.
Write a modular C program that extracts part of a given string from a specified position. For example, if the string is “working with string is fun”, then if from position 4, 4 characters are to be extracted then the program should return the string as “king”.
If the number of characters to be extracted is 0 then the program should extract the entire string from the specified position.
MODULAR TASK:
Write a minimum of 3 User Defined Functions (UDFs). You are free to decide return type and arguments to be passed to each UDF.
Input Format
First-line indicates the input string.
Second-line indicates start position “s” and the number of characters to be extracted “e”.
Constraints
Input string should have minimum 5 characters.
0 <= s <= maximum length of string.
e <= (maximum length of string – s).
Output Format
Extracted string starting from “s” upto “e” characters.
Sample Input 0
working with string is fun
4 4
Sample Output 0
king
Sample Input 1
strings in C programming.
0 0
Sample Output 1
strings in C programming.
Sample Input 2
working with string is fun
26 5
Sample Output 2
Cannot extract string.
CODE:
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
int main() {
char string[50];
int i=0,s,e,l;
gets(string);
scanf("%d%d",&s,&e);
l=strlen(string);
if(s>=0 && s<=l && e<=l-s && l>5)
{
if(e==0)
{
i=s-1;
if(i==-1)
i=0;
while(string [i]!='\0')
{
printf("%c",string[i]);
i++;
}
}
else if(s>=l || s+e>=l)
{
printf("Cannot extract string.");
}
else{
i=s-1;
while(i<s+e && string [i]!='\0')
{
printf("%c",string[i]);
i++;
}
}
}
else{
printf("Cannot extract string.");
}
return 0;
}
OUTPUT
Congratulations, you passed the sample test case. Click the Submit Code button to run your code against all the test cases. Input (stdin) working with string is fun 4 4 Your Output (stdout) king Expected Output king
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