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1 D Arrays in C++

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1D ARRAYS POONAM WALIA KV SHALIMAR BAGH
WHAT IS AN ARRAY ,[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
NEED FOR AN ARRAY ,[object Object],[object Object],[object Object]
TYPES OF ARRAYS ,[object Object],[object Object]
One – Dimensional Array ,[object Object],[object Object],Base type of array Name of array No. of elements that can be stored: Can be a integer value without the sign
Ex : MARKS [50] 0 1 2 3 49 MARKS [1] MARKS [3] . . .
ARRAY INITIALIZATION ,[object Object],[object Object],[object Object],[object Object],[object Object]
Implementation of 1Dimensional Array in Memory ,[object Object],[object Object],[object Object],[object Object]
Ex : What will be the adresses of element Marks[-1] and marks[2] of the following array with element size as 2 bytes and base address as 1000. Marks -3 -2 -1 0 1 2 3 1000
SOL : Address of Marks [I] = Base Address + ES ( I – L) L = -3 ES = 2 Base Address = 1000 Address of Marks[-1]= 1000 + 2(-1-(-3)) = 1000+ 2(2)= 1004 Address of Marks[2]= 1000 + 2(2-(-3)) = 1000+ 2(5)= 1010
[object Object],[object Object],[object Object],Basic Operation on 1 Dimensional Arrays
[object Object],[object Object],[object Object],[object Object],[object Object],Linear Search or Sequential Search
Algorithm to perform a Sequential Search ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Binary Search ,[object Object],[object Object],[object Object],[object Object],[object Object]
Algorithm to perform Binary Search ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example of a Binary Search ,[object Object],[object Object]
Binary Search Example (con't) ,[object Object],[object Object]
Binary Search Example (con't) ,[object Object],[object Object]
Binary Search: Finding the search key ,[object Object],[object Object]
Binary Search Example 2 ,[object Object],[object Object]
Binary Search Example 2 (con't) ,[object Object],[object Object]
Binary Search Example 2 (con't) ,[object Object],[object Object]
Binary Search Example 2 (con't) ,[object Object],[object Object]
Binary Search 2: search key is not found ,[object Object],[object Object],[object Object]

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1 D Arrays in C++

  • 1. 1D ARRAYS POONAM WALIA KV SHALIMAR BAGH
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7. Ex : MARKS [50] 0 1 2 3 49 MARKS [1] MARKS [3] . . .
  • 8.
  • 9.
  • 10. Ex : What will be the adresses of element Marks[-1] and marks[2] of the following array with element size as 2 bytes and base address as 1000. Marks -3 -2 -1 0 1 2 3 1000
  • 11. SOL : Address of Marks [I] = Base Address + ES ( I – L) L = -3 ES = 2 Base Address = 1000 Address of Marks[-1]= 1000 + 2(-1-(-3)) = 1000+ 2(2)= 1004 Address of Marks[2]= 1000 + 2(2-(-3)) = 1000+ 2(5)= 1010
  • 12.
  • 13.
  • 14.
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  • 25.