(d) sum = 0; for (i = 0; i < n; for(j = ++i) 0; j < i; ++j ) ++sum; (e) sum = 0; for(i= = 0; i < n; ++i) for(j = 0; j < i * i; ++j ) for(k = 0; k
(d) sum = 0; for (i = 0; i < n; for(j = ++i) 0; j < i; ++j ) ++sum; (e) sum = 0; for(i= = 0; i < n; ++i) for(j = 0; j < i * i; ++j ) for(k = 0; k
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
Given an analysis of the running time in Big-O for problems
Transcribed Image Text:(d)
0;
for(i =
sum =
0; i < n; ++i)
0; j < i; ++j )
++sum;
for(j =
(e) sum = 0;
for (i = 0; i < n; ++i)
for(j
0; j < i * i; ++j )
for(k = 0; k<j; ++k )
++sum;
=
Expert Solution
Step 1
d) Ans:-
sum=0
for(i=0; i<n; ++i)
for(j=0; j<i; ++j)
++sum;
Describe the following program:-
Answers:- How many times inner loop will be runs depends on all iteration inner loop
i = 1
inner loop run 1 time
i = 2
inner loop run 2 times
i = 3
inner loop run 3 times
i = 4
inner loop run 4 times
.................................
..................................
when i = n
inner loop will run n time
The time complexity is = O(1+2+3+4+5+6+......+n)
= O(N^2)
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