ARRAY ORDER REVERSAL

CONTENT

• AIM
  


• PROBLEM DESCRITION
  


• ALGORITHM DISCRIPTION
  


• IMPLIMENTATION
  


• APPLICATION
  

AIM:

WE HAVE TO REVERSE THE NUMBERS IN THE PROBLEM GIVEN

PROBLEM DISCRIPTION

REVERSAL ORDER MEANS JUST REVERSE THE NUMBER. WE HAVE THE NUMBERS IN ORDER OF 1,2,3,4,5,6,7

MEANS THE REVERSE OF THE NUMBERS ARE 7,6,5,4,3,2,1.

WE TAKE THIS AS AN EXAMPLE.

1

2

3

4

5

6

7

N=7 WE HAVE TO INTIALISE THE VALUE OF I IS1.

R IS THE NUMBER OF SWAPING.

WE HAVE CALCULATE R VALUE R=N/2.

A [1] <=> A [7]

A [2] <=> A [6]

A [3] <=> A [5]

A [4] <=> A [4]

I=1 INCREASE THE VALUE. N IS DECREASE VALUE.

WE HAVE ACHIVE ONLY ONE VARIABLE USE BOTH RIGHT & LEFT SIDE.

SO THE FORMULA IS N=N-I+1.

N=7-1+1=7

N=7-2+1=6

N=7-3+1=5

N=7-4+1=4

N=7-5+1=3

N=7-6+1=2

N=7-7+1=1

ALGORITHM DESCRIPTION

READ THE VALUES

INITIALIZ THE I VALUE

FIND THE NO OF SWAP

SUBSTUTE THE FORMULA N=N-I+1.

COLECT THE VALUES AND STORED

STOP THE PROCESS.

IMPLEMENTATION:

#INCLUDE<STDIO.H>

#INCLUDE<CONIO.H>

VOID MAIN ( )

{

INT A [100], T, R, I, N;

PRINTF (“ENTER THE VALUES’);

SCANF (“%D”, &N);

FOR (I=0; I<=N; I++)

R=N/2;

FOR (I=0; I<=R;I++)

{

T=A [I];

A [I] = A [N-I+1];

A [N-I+1] =T;

}

FOR (I=1;I<=N;I++)

PRINTF (“%D “, &D [I]);

}

IF ARRAY IS STARTING WITH 0 TH INDEX IT IS NOT WORK.

N=8 WE HAVE TO INTIALISE THE VALUE OF I IS 0.

R IS THE NUMBER OF SWAPING.

WE HAVE CALCULATE R VALUE R= (N+1)/2.

A [0] <=> A [7]

A [1] <=> A [6]

A [2] <=> A [5]

A [3] <=> A [4]

I=0 INCREASE THE VALUE. N IS DECREASE VALUE.

WE HAVE ACHIVE ONLY ONE VARIABLE USES BOTH RIGHT & LEFT SIDE.

SO THE FORMULA IS N= N-I.

N=7-0=7

N=7-1=6

N=7-2=5

N=7-3=4

N=7-4=3

N=7-5=2

N=7-6=1

PROGRAM FOR STARTING INDEX 0:

#INCLIDE<STDIO.H>

#INCLUDE<CONIO.H>

VOID MAIN ( )

{

INT A [100], T, R,I,N;

PRINTF (“ENTER THE VALUES’);

SCANF (“%D”, &N);

FOR (I=0; I<=N; I++)

R=N/2;

FOR (I=0; I<=R; I++)

{

T=A [I];

A [I] = A [N-I];

A [N-I] =T;

}

FOR (I=1; I<=N; I++)

PRINTF (“%D “, &D [I]);

}

APPLICATION:

SORTING IN MATHEMATICAL.

MATRIX MALTIPLICATION