Why this code isn't work?

Question

This is my code to find the largest elements in given input from dynamical memory exercise 33.2 C++,when i run it on Dev C++5.11 it run well
But when i submit it,it doesn't work

This is the code
https://code.sololearn.com/cmy1pLCn4eJ4/?ref=app

Answer 1

https://code.sololearn.com/cBhzDKRRae3T/?ref=app

Answer 2

Because your for loop is wrong declarated

Answer 3

Thank you so much Martin Taylor and Tomasz wilczyñski your answers make me want to learn code more

Answer 4

Change
for(a>=0;a--;){
to
for(;a>=0;a--){