Code Optimization needed in Tic Tac Toe

[crypticani]

The Program of Tic Tac Toe in this repo needs optimization to reduce it's space complexity, which is currently very high due heavy use of if-else loops. You are invited to brush up your basic C programming skills. It will also give you a revision of concepts since most of you are not coding regularly amidst the COVID19 pandemic.

suggestion:

• Decrease the number of if-else loops, maintaining the original logic. However, if you have a better idea, you can add yours.
• Use of double for loops
• Use of matrix

You can add your own logic or suggestions too.