Data structure loop invariant

In this tutorial, we’ll explain what’s a loopinvariant and how we can use it to prove the correctness of our algorithms,Loop invariants A loop invariant is a condition that is true at the beginning and end of every iteration of a loop. The concept is similar to a class invariant, which must be true at the beginning and end of every public method.Loop Invariants Overview A loop invariant is a condition that is necessarily true immediately before and immediately after each iteration of a loop. (Note that this says nothing about its truth or falsity part way through an iteration.)A loop invariant is a statement about an algorithm’s loop that: is true before the first iteration of the loop and if it’s true before an iteration, then it remains true before the next iteration.A loop invariant is a condition [among program variables] that is necessarily true immediately before and immediately after each iteration of a loop. (Note that this says nothing about its truth or falsity part way through an iteration.) A loop invariant is some predicate (condition) that holds for every iteration of the ...A loop invariant is a statement about program variables that is true before and after each iteration of a loop. A good loop invariant should satisfy three properties: Initialization: The loop invariant must be true before the first execution of the loop.