Some Problems In Array

Here in my this blog we will learn how to take input in an array and display that on screen and we perform some others operation on Arrays.

Have a fun : )

1. In our this program we will learn how to take inputs in array we will declare a array of length 5 and enter some value into it

reading-array.c

#include<stdio.h>;
int main()
{
  int a[5],i;
  for (i = 0; i < 5; i++)
  {
    printf("Enter a number :n");
    scanf("%d",&a[i]);
  }
  printf("All values are stored in the Array");
  return 0;
}

Output :-
Enter a number :
5
Enter a number :
4
Enter a number :
3
Enter a number :
2
Enter a number :
1
All values are stored in the Array

1. In our this program we will read an array and display that on screen , This program will take 5 integer and display them on screen.

reading-writing-array.c

#include<stdio.h>;
int main()
{
  int a[5],i;
  for (i = 0; i < 5; i++)
  {
    printf("Enter a number : n");
    scanf("%d",&a[i]);
  }
  printf("Entered numbers are : n");
  for (i = 0; i < 5; i++)
  {
    printf("%d n",a[i]);
  }
  return 0;
}

Output :-
Enter a number
1
Enter a number
2
Enter a number
3
Enter a number
4
Enter a number
5
Entered numbers are :
1
2
3
4
5

1. Our this program will take 2 Array and store that in a third Array and display third array on screen.

sum-of-2-array-in-3.c

#include<stdio.h>;
int main()
{
  float a[5],b[5],c[5];
  int i;
  printf("Enter first Array :n");
  for (i = 0; i < 5; i++)
  {
    printf("Enter a float number :");
    scanf("%f",&a[i]);
  }
  printf("n Enter second Array :n");
  for (i = 0; i < 5; i++)
  {
    printf("Enter a float number :");
    scanf("%f",&b[i]);
  }

  //Adding of both Array
  for (i = 0; i < 5; i++)
  {
    c[i] = a[i]+b[i];
  }
  printf("Sum of both array is :n");
  for (i = 0; i < 5; i++)
  {
    printf("%.2ft",c[i]);
  } 
}

Output :-
Enter first Array :
Enter a float number :1.2
Enter a float number :2.3
Enter a float number :4.5
Enter a float number :6.7
Enter a float number :8.9
Enter second Array :
Enter a float number :2.1
Enter a float number :3.2
Enter a float number :4.3
Enter a float number :5.4
Enter a float number :7.6
Sum of both array is :
3.30 5.50 8.80 12.10 16.50

1. Our this Program will take 10 integers and count Positive,Negative and Zeros from that Array.

counting-pos-neg-zero-in-array.c

#include<stdio.h>;
int main()
{
  int a[10],z,p,n,i;
  z=p=n=0;
  for (i = 0; i < 10; i++){
    printf("Enter a number : ");
    scanf("%d",&a[i]);
    if( a[i] > 0 ){
    p++;
    if(a[i]<0)
    n--;
    if(a[i]==0)
    z++;
  }
  printf("Positive numbers are %d, Negative number are %d and zeros are %d.",p,n,z);
  return 0;
  }
}

Output :-
Enter a number : 12
Enter a number : 23
Enter a number : -56
Enter a number : 0
Enter a number : 65
Enter a number : 0
Enter a number : -97
Enter a number : 34
Enter a number : -67
Enter a number : 0
Positive numbers are 4, Negative number are -3 and zeros are 3.

1. It is a kind of calculator which will perform a operation you provide and display result on the screen.

array-calculater.c

#include<stdio.h>;
int main()
{
int a[5],b[5],i;
char x;

 printf("select a operation form +,-,* and / :- ");
 scanf("%c",&x);

 printf("Enter first array :n");
 for (i = 0; i < 5; i++)
 {
   printf("Enter a number : ");
   scanf("%d",&a[i]);
 }
 printf("n Enter second array :n");
 for (i = 0; i < 5; i++)
 {
   printf("Enter a number : ");
   scanf("%d",&b[i]);
 }

switch(x)
 {
  case '+':
 {
  for (i = 0; i < 5; i++)
    printf("%d n",a[i]+b[i]);
  break;
 }
 case '-':
 {
   for (i = 0; i < 5; i++)
    printf("%d n",a[i]-b[i]);
    break;
 }
 case '*':
 {
   for (i = 0; i < 5; i++)
    printf("%d n",a[i]*b[i]);
    break;
 }
 case '/' :
 {
   for (i = 0; i < 5; i++)
    printf("%.2f n",(float)a[i]/b[i]);
    break;
 }
 default:
  printf("invalid selection n");
}
return 0;
}

Output :-
select a operation form +,-,* and / :- /
Enter first array :
Enter a number : 12
Enter a number : 23
Enter a number : 34
Enter a number : 45
Enter a number : 56

Enter secand array :
Enter a number : 1
Enter a number : 2
Enter a number : 3
Enter a number : 4
Enter a number : 5
12.00
11.50
11.33
11.25
11.20

1. Our this program will accept a integer from you and display count number Larger, Smaller and Equal to that number.

finding-larg-small-=-num-in-array.c

#include<stdio.h>;
int main()
{
  int a[10],i,b,l,s,e;
  s=e=l=0;

  printf("Enter a number with which you want to compare Array elements : ");
  scanf("%d",&b);

  for ( i = 0 ; i < 10 ; i++ )
  {
  printf("Enter a number :");
  scanf("%d",&a[i]);

  if(a[i]==b)
  e++;

  if(a[i]<b) s++; if(a[i]>;b)
  l++;
  }
  printf("Large number are %d, Small number are %d and Equal are %d.",l,s,e);
  return 0;
}

Output :-
Enter a number with which you want to compare Array elements : 23
Enter a number :45
Enter a number :67
Enter a number :23
Enter a number :76
Enter a number :56
Enter a number :56
Enter a number :768
Enter a number :435
Enter a number :-887
Enter a number :-67
Large number are 7, Small number are 2 and Equal are 1.

1. Our this program will take 2 Array and compare there each index and store larger value in third Array.

e.g

if (A[0] > B[0] )
C[0] = A[0];

same process will held with each index.

finding-large-number-and-storing.c

#include<stdio.h>;
int main()
{
  int a[5],i,b[5],c[5];
  printf("Enter first Array :n");
  for (i = 0; i < 5; i++)
  {
  printf("Enter a number :");
  scanf("%d",&a[i]);
  }
  printf("nEnter second Array :n");
  for (i = 0; i < 5; i++)
  {
  printf("Enter a number :");
  scanf("%d",&b[i]);
  }
  for (i = 0; i <5 ; i++)  {    if(a[i]>;b[i])
      c[i]=a[i];
    else
      c[i]=b[i];
  }
  for (i = 0; i <5 ; i++)
  {
    printf("%d t",c[i]);
  }
  return 0;
}

Output :-
Enter first Array :
Enter a number :12
Enter a number :34
Enter a number :56
Enter a number :7
Enter a number :1
Enter second Array :
Enter a number :1
Enter a number :2
Enter a number :3
Enter a number :4
Enter a number :5
12 34 56 7 5

1. Our This program will Marge first two array into third array.

merging-array.c

#include<stdio.h>;
void main()
{
  int a[5],i,b[5],c[10];

  printf("Enter first Arrayn");
  for (i = 0; i < 5; i++)
  {
  printf("Enter a number :");
  scanf("%d",&a[i]);
  }
  printf("nEnter second Arrayn");
  for (i = 0; i < 5; i++)
  {
  printf("Enter a number :");
  scanf("%d",&b[i]);
  }

  for (i = 0; i < 5; i++)
  {
  c[i]=a[i];
  c[i+5]=b[i];
  }
  printf("Array after merging is : n");
  for (i = 0; i <10 ; i++)
  {
  printf("%d ",c[i]);
  }
}

Output :-
Enter first Array
Enter a number :12
Enter a number :34
Enter a number :54
Enter a number :67
Enter a number :897
Enter second Array
Enter a number :34
Enter a number :34
Enter a number :45
Enter a number :23
Enter a number :567
Array after merging is :
12 34 54 67 897 34 34 45 23 567

1. This program will Print reverse of an Array.

printing-array-in-reverse.c

#include<stdio.h>;
void main()
{
  int a[5],i;
  char x;
  printf("Enter your array : n");
  for (i = 0; i < 5; i++)  {  printf("Enter a number :");  scanf("%d",&a[i]);  } for ( i = 4 ; i >;= 0 ; i-- )
  printf("%d ",a[i]);

}

Output :-
Enter your array :
Enter a number :12
Enter a number :34
Enter a number :54
Enter a number :76
Enter a number :89
89 76 54 34 12

1. This program will store reverse of an Array and store it another array and display that.

reverse-an-array-in-another.c

#include<stdio.h>;
void main()
{
  int a[5],b[5],i,j;
  char x;
  for (i = 0; i < 5; i++)  {  printf("Enter a number :");  scanf("%d",&a[i]);  }  for (i=4,j=0;i>;=0;j++,i--)
      b[j]=a[i];

  for (i = 0; i < 5; i++)
  printf("%d ",b[i]);
}

Output :-
Enter a number :12
Enter a number :34
Enter a number :45
Enter a number :675
Enter a number :34
34 675 45 34 12

Later we will discuss Array with functions.