Question # 02: Let’s assume we want to find the largest number in a non-empty array A. A sample solution can be following: def max(A): answer = A[0] for j in range(1,len(A)): // in pseudo-code: for i=1,...,len(A)-1 if (A[j]>answer): answer = A[j] return answer Perform the code correction check including the loop invariance.
Question # 02: Let’s assume we want to find the largest number in a non-empty array A. A sample solution can be following: def max(A): answer = A[0] for j in range(1,len(A)): // in pseudo-code: for i=1,...,len(A)-1 if (A[j]>answer): answer = A[j] return answer Perform the code correction check including the loop invariance.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question # 02:
Let’s assume we want to find the largest number in a non-empty array A. A sample solution can be following:
def max(A):
answer = A[0]
for j in range(1,len(A)): // in pseudo-code: for i=1,...,len(A)-1
if (A[j]>answer): answer = A[j]
return answer
Perform the code correction check including the loop invariance.
Question # 03:
illustrate the operation of merge sort on the array
A = {3; 41; 52; 26; 38; 57; 9; 49}.
Question # 04: Answer the following short questions:
- a) Is 2n+1 = O(2n)?
- b) Is 22n = O(2n)?
- c) f(n)=O(g(n)) implies g(n)=O(f(n))
- d) f(n) = O((f(n))2)
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