Substring program without library function | C Language

Q : Write a ‘C’ Program to find substring of string without using Library Function.

Answer :

#include<stdio.h>

#include<conio.h>

#define MAX 50

/*============================

     Girfa Student Help

     Substring wihout using library function

==============================*/

Sum of lower triangular program | C language

Q : Write a ‘C’ Program to find Sum of lower triangular elements in a matrix.

Answer : 

Lower triangular

Lower triangular matrix is a special square matrix whole all elements above the main diagonal is zero.

Delete a number by given position from array program | C Language

Q : Write a program to delete an element from a given location of an array of integers.

Answer : 

#include<stdio.h>

#include<conio.h>

#define MAX 50

/*============================

     Girfa Student Help

     Remove from array by given index

==============================*/

Link List vs Array

Q :Define array and link list. Give one example for each showing its usage

Answer :

Define Link List

struct node

{

     int data;

     struct node *next;

}

int ar[5];