ARRAY IMPLEMENTATION:
Syntax:
Two Dimensional Arrays:
Definition of Array:
Collection of elements of slimier Data types is known as Array.
i.e with in one Name we can store any number of elements.
Syntax:
Declaration :
Ex:int a[5];
float b[3];
Initialization :
Datatype Arrayname [size]={elements...};
Ex:- int a[5]={2,6,8,7,8};
Elements
|
2
|
6
|
8
|
7
|
8
|
Index
|
0
|
1
|
2
|
3
|
4
|
- Memory will be allocated continuously for all the elements.
- Each element is identified with the help of index number.
- The index of the array starts from ‘0’ and end at ‘size-1’.
- The size of the array must be constant.
/*3.Write
a C++ program to
Demonstrate
one Dimensional Array
*/
|
/*4.Write
a C++ program to
Demonstrate
one Dimensional
Array
using loops*/
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[5]={9,4,6,2,5};
clrscr(
);
cout<<“\nsizeof
a= bytes”<<sizeof(a);
cout<<“\a[0]=“<<a[0];
cout<<“\a[1]=“<<a[1];
cout<<“\a[2]=“<<a[2];
cout<<“\a[3]=“<<a[3];
cout<<“\a[4]=“<<a[4];
getch( );
}
Result:
Output:
Size
of a=10 bytes
a[0]=9
a[1]=4
a[2]=6
a[3]=2
a[4]=5
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[5]={9,4,6,2,5};
int
i;
clrscr(
);
cout<<“\nsizeof
a= bytes”<<sizeof(a);
for(i=0;i<5;i++)
{
cout<<“\na[“<<i<<”]=“<<a[i];
}
getch( );
}
Result:
Output:
Size
of a=10 bytes
a[0]=9
a[1]=4
a[2]=6
a[3]=2
a[4]=5
|
/*5.Write
a C++ program to accept
the
5 integer to an one
Dimensional Array and Display it
*/
|
/*5.Write
a C++ program to accept
the
n integers to an one
Dimensional
Array and Display it
*/
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[5];
int
i;
clrscr(
);
for(i=0;i<5;i++)
{
cout<<“\nEnter Element:”<<i+1;
cin>>a[i];
}
for(i=0;i<5;i++)
{
cout<<“\na[“<<i<<”]=“<<a[i];
}
getch( );
}
Result:
Input:
Enter
1 Element:21
Enter
2 Element:63
Enter
3 Element:52
Enter
4 Element:4
Enter
5 Element:9
Output:
a[0]=21
a[1]=63
a[2]=52
a[3]=4
a[4]=9
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[5];
int
i,n;
clrscr(
);
cout<<“enter
the value of n:”;
cin>>n;
for(i=0;i<n;i++)
{
cout<<“\nEnter Element:”<<i+1;
cin>>a[i];
}
for(i=0;i<n;i++)
{
cout<<“\na[“<<i<<”]=“<<a[i];
}
getch( );
}
Result:
Input:
Enter the
value of n:3
Enter
1 Element:2
Enter
2 Element:6
Enter
3 Element:5
Output:
a[0]=2
a[1]=6
a[2]=5
|
/*Write
a C++ program to accept the n integers
Display
reverse order */
|
/*5.Write
a C++ program to accept the n integers
Display Ascending order */
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[20],i,n,temp;
clrscr(
);
cout<<"Enter
the value of n:";
cin>>n;
for(i=0;i<n;i++)
{
cout<<"\nEnter element:”<<i+1;
cin>>a[i];
}
cout<<"\noriginal
order:";
for(i=0;i<n;i++)
{
cout<<"”<<a[i];
}
for(i=0;i<n/2;i++)
{
temp=a[i];
a[i]=a[n-1-i];
a[n-1-i]=temp;
}
cout<<"\nReverse
order:";
for(i=0;i<n;i++)
{
cout<<" ”<<a[i];
}
getch( );
}
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[20],i,j,n,temp;
clrscr(
);
cout<<"Enter
the value of n:";
cin>>n;
for(i=0;i<n;i++)
{
cout<<"\nEnter element:”<<i+1;
cin>>a[i];
}
cout<<"\noriginal
order:";
for(i=0;i<n;i++)
{
cout<<" ”<<a[i];
}
for(i=0;i<n-1;i++)
{
for(j=i+1;j<n;j++)
{
if(a[i]>a[j])
{
temp=a[i];
a[i]=a[j];
a[j]=temp;
}
}
}
cout<<"\nAscending
order:";
for(i=0;i<n;i++)
{
cout<<" ”<<a[i];
}
getch( );
}
|
Result:
Input:
Enter
the value of n:5
Enter
1 element:9
Enter
2 element:6
Enter
3 element:4
Enter
4 element:1
Enter
5 element:3
Output:
original
order: 9 6
4 1 3
Reverse
order: 3 1
4 6 9
|
Result:
Input:
Enter
the value of n:5
Enter
1 element:21
Enter
2 element:55
Enter
3 element:41
Enter
4 element:78
Enter
5 element:3
Output:
original
order: 21 55 41 78 3
Ascending
order: 3 21 41 55 78
|
|
|
Two Dimensional Arrays:
Collection of elements of one dimensional Array is known as a two dimensional Array.
Syntax:
Declaration :
Datatype Arrayname [row size][col size];
Ex:int a[5][3];
Initialization :
Datatype Arrayname [size]={elements...};
Datatype Arrayname [size]={{row elements},{row elements}...};
Ex:- int a[3][3]={2,6,8,7,9,1,5,4,3};
int a[3][3]={{2,6,8},{7,9,1},{5,4,3}};
columns
| ||||
r
o
w
s
|
a
|
0
|
1
|
2
|
0
|
2
|
6
|
8
| |
1
|
7
|
9
|
1
| |
2
|
5
|
4
|
3
|
Output: a[0][0]=2, a[0][1]=6…..,a[2][2]=3
/*Write
a C++ program to demonstrate two
Dimensional Arrayand display in the form of matrices */
|
/*Write
a C++ program to accept the elements
for
two
Dimensional Arrayand display in the form
of
3x3 matrices */
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[3][3]= {{2,6,8},{7,9,1},{5,4,3}};
int i,j;
clrscr(
);
for(i=0;i<3;i++)
{
cout<<"\n";
for(j=0;j<3;j++)
{
cout<<"”<<a[i][j];
}
}
getch( );
}
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[3][3],i,j;
clrscr(
);
for(i=0;i<3;i++)
{
cout<<"\n";
for(j=0;j<3;j++)
{
cout<<"enter row
column Element:”<<i+1,j+1;
cin>>a[i][j];
}
}
for(i=0;i<3;i++)
{
cout<<"\n";
for(j=0;j<3;j++)
{
cout<<" ”<<a[i][j];
}
}getch( );
}
|
Result:
Output:
2 6 8
7 9 1
5 4 3
|
Result:
Input:
enter
1 row 1 column Element:5
enter
1 row 2 column Element:9
enter
1 row 3 column Element:4
enter
2 row 1 column Element:3
enter
2 row 2 column Element:2
enter
2 row 3 column Element:1
enter
3 row 1 column Element:4
enter
3 row 2 column Element:6
enter
3 row 3 column Element:3
Output:
5 9 4
3 2 1
4 6 3
|
/*Write
a C++ program to accept the elements
for
two
Dimensional Arrayand display in the form
of
3x3 matrices */
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[10][10],i,j,r,c;
clrscr(
);
cout<<"enter
row and column Size:";
cin>>r>>c;
for(i=0;i<r;i++)
{
cout<<"\n";
for(j=0;j<c;j++)
{
cout<<"enter row
column Element:”<<i+1,j+1;
cin>>a[i][j];
}
}
for(i=0;i<r;i++)
{
cout<<"\n";
for(j=0;j<c;j++)
{
cout<<" ”<<a[i][j];
}
}
getch( );
}
|
Result:
Input:
enter
row and column Size:2
3
enter
1 row 1 column Element:8
enter
1 row 2 column Element:5
enter
1 row 3 column Element:4
enter
2 row 1 column Element:1
enter
2 row 2 column Element:9
enter
2 row 3 column Element:6
8
5 4
1
9 6
|
/*Write
a C++ program to find sum of two
matrices */
|
/*Write
a C++ program to find product of two
matrices */
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[10][10],b[10][10],c[10][10];
int r1,c1,r2,c2,r3,c3,i,j;
clrscr(
);
cout<<"\nEnter
row and column Size Matrix A:";
cin>>r1>>c1;
cout<<"\nEnter
row and column Size Matrix B:";
cin>>r2>>c2;
if(r1==r2&&c1==c2)
{
cout<<"\nenter
elements for Matrix A:";
for(i=0;i<r1;i++)
{
cout<<"\n";
for(j=0;j<c1;j++)
{
cout<<"enter row column
Element:”<<i+1,j+1;
cin>>a[i][j];
}
}
cout<<"\nenter
elements for Matrix B:";
for(i=0;i<r2;i++)
{
cout<<"\n";
for(j=0;j<c2;j++)
{
cout<<"enter row column
Element:”<<i+1,j+1;
cin>>b[i][j];
}
}
r3=r1;//r3=r2;
c3=c1;//c3=c2;
for(i=0;i<r3;i++)
{
for(j=0;j<c3;j++)
{
c[i][j]=a[i][j]+b[i][j];
}
}
cout<<"\nMatrix
A:";
for(i=0;i<r1;i++)
{
cout<<"\n";
for(j=0;j<c1;j++)
{
cout<<" ”<<a[i][j];
}
}
cout<<"\nMatrix
B:";
for(i=0;i<r2;i++)
{
cout<<"\n";
for(j=0;j<c2;j++)
{
cout<<" ”<<b[i][j];
}
}
cout<<"\nAddition
of Matrix A and B:";
for(i=0;i<r3;i++)
{
cout<<"\n";
for(j=0;j<c3;j++)
{
cout<<" ”<<c[i][j];
}
}
}
else
{
cout<<"\nMatrix
Addition is not possible";
}
getch( );
}
|
#include<iostream.h>
#include<conio.h>
void main()
{
int a[10][10],b[10][10],c[10][10];
int
r1,c1,r2,c2,r3,c3,i,j,k;
clrscr(
);
cout<<"\nEnter
row and column Size of Matrix A:";
cin>>r1>>c1;
cout<<"\nEnter
row and column Size of Matrix B:";
cin>>r2>>c2;
if(c1==r2)
{
cout<<"\nenter
Element for Matrix A:";
for(i=0;i<r1;i++)
{
cout<<"\n";
for(j=0;j<c1;j++)
{
cout<<"enter row
column Element:”<<i+1,j+1;
cin>>a[i][j];
}
}
cout<<"\nenter
Element for Matrix B:";
for(i=0;i<r2;i++)
{
cout<<"\n";
for(j=0;j<c2;j++)
{
cout<<"enter row
column Element:”<<i+1,j+1;
cin>>b[i][j];
}
}
r3=r1;
c3=c2;
for(i=0;i<r3;i++)
{
for(j=0;j<c3;j++)
{
c[i][j]=0;
for(k=0;k<c1;k++)
{
c[i][j]=c[i][j]+a[i][k]*b[k][j];
}
}
}
cout<<"\nMatrix
A:";
for(i=0;i<r1;i++)
{
cout<<"\n";
for(j=0;j<c1;j++)
{
cout<<" ”<<a[i][j];
}
}
cout<<"\nMatrix
B:";
for(i=0;i<r2;i++)
{
cout<<"\n";
for(j=0;j<c2;j++)
{
cout<<" ”<<b[i][j];
}
}
cout<<"\nproduct
of Matrix A and B:";
for(i=0;i<r3;i++)
{
cout<<"\n";
for(j=0;j<c3;j++)
{
cout<<" ”<<c[i][j];
}
}
}
else
{
cout<<"\nMatrix
product is not possible";
}
getch( );
}
|
Result:
Input:
Enter
row and column Size Matrix A:2
2
enter
elements for Matrix A:
enter
1 row 1 column Element:1
enter
1 row 2 column Element:2
enter
2 row 1 column Element:3
enter
2 row 2 column Element:4
enter
elements for Matrix B:
enter
1 row 1 column Element:5
enter
1 row 2 column Element:6
enter
2 row 1 column Element:7
enter
2 row 2 column Element:8
Output:
Matrix A:
1 2
3 4
Matrix B:
5 6
7 8
Addition of Matrix A and B:
6 8
10 12
|
Result:
Input:
Enter
row and column Size of Matrix A:2
2
Enter
row and column Size of Matrix B:2
2
enter
element for Matrix A:
enter
1 row 1 column element:1
enter
1 row 2 column element:1
enter
2 row 1 column element:1
enter
2 row 2 column element:1
enter
element for Matrix B:
enter
1 row 1 column element:1
enter
1 row 2 column element:1
enter
2 row 1 column element:1
enter
2 row 2 column element:1
Output:
Matrix A:
1 1
1 1
Matrix B:
1 1
1 1
product of Matrix A and B:
2 2
2 2
|
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