Hello There are no. of sites are available which provides free video tutorials. Also, YouTube is the best way to learn from a free video tutorial. You can learn from...

Hello From your two options, Chemical Engineering and Electronic & Communication Engineering, Acc. to me, Go for Electronic & Communication Engineering as it provides more option for career and placements....

The output of this code is: 1 2 -3 As int use signed integers, so 13 get converted into -3.