I used const in global and ans got accepted why?

tmatheena · April 16, 2020, 5:14pm

with const–CodeChef: Practical coding for everyone
anyone plz explain me this?

tmatheena · April 16, 2020, 5:17pm

@ssjgz or @everule1 can you explain this plz ?

everule1 · April 16, 2020, 5:30pm

I don’t think you understand how much const speeds up execution time. The compiler does some more optimisations if it knows the value won’t be changed.
This is one of my previous submissions
With const declared everywhere possible, like you normally should
Now I removed const, and I get this
Without const

tmatheena · April 16, 2020, 5:33pm

ok got that.It means const makes execution fast.
Thanks.

infinitepro · April 16, 2020, 6:40pm

Google should always be your first priority.
WE ARE NOT HERE TO SEARCH INFORMATION FOR YOU.
In any case, here it is : What kind of optimization does const offer in C/C++? - Stack Overflow