) if(A[j] > A[j+1]) swap(A, j, j+1); What is the invariant for the inner loop?

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
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Consider the code for Bubblesort:
for(int i=0; i<N; i++)
for(int j=0; j<N-i-1; j++)
if(A[j] > A[j+1])
swap(A, j, j+1);

What is the invariant for the inner loop? Show that the invariant is correct.

 

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