fix: Various LGTM fixes

[Panquesito7]

Description of Change

Various LGTM fixes - #880

Checklist

• Added description of change
• PR title follows semantic commit guidelines
• Search previous suggestions before making a new one, as yours may be a duplicate.
• I acknowledge that all my contributions will be made under the project's license.

Notes:

[lgtm-com]

This pull request fixes 4 alerts when merging bd14502 into d958eec - view on LGTM.com

fixed alerts:

• 4 for Short global name

[Panquesito7]

Both issues should be fixed now.

[lgtm-com]

This pull request introduces 1 alert and fixes 4 when merging 18132b9 into d958eec - view on LGTM.com

new alerts:

• 1 for 'new[]' array freed with 'delete'

fixed alerts:

• 4 for Short global name

[kvedala]

what do you think?
We can do this because, the past values of the series are not being used at all. The main function is simply printing them in series. So, why to even store the values?

[lgtm-com]

This pull request fixes 4 alerts when merging d2f6a49 into d958eec - view on LGTM.com

fixed alerts:

• 4 for Short global name

[Panquesito7]

All issues should be fixed now.
Thanks, @kvedala! 🙂

[kvedala]

please ensure all codes

1. compile
2. execute
3. return values as expected

[lgtm-com]

This pull request fixes 4 alerts when merging 6044411 into d958eec - view on LGTM.com

fixed alerts:

• 4 for Short global name

[kvedala]

@mishraabhinn @ayaankhan98 please review as well. Thanks

[Panquesito7]

@kvedala all programs seem to be running fine, thanks.
However, the parenthesis_matching.cpp program always prints Wrong Expression, no matter what I type.

[kvedala]

@kvedala all programs seem to be running fine, thanks.
However, the parenthesis_matching.cpp program always prints Wrong Expression, no matter what I type.

try this input:
{{(())}}

[lgtm-com]

This pull request fixes 4 alerts when merging 72fad26 into d958eec - view on LGTM.com

fixed alerts:

• 4 for Short global name

[Panquesito7]

Thank you, it worked.
Everything seems to be fine with all programs.

[lgtm-com]

This pull request fixes 4 alerts when merging 4c6b3b8 into d958eec - view on LGTM.com

fixed alerts:

• 4 for Short global name