A trouble With Code

Kaz is right i think.Because simple meaning of the this common error "multiple constant driver" is that compiler is unable to assign more than one value to that specified stuff that u wanted.

Because your code is simultaneously assigning more than one values to output[10],so compiler always confuses out of two values,which one i should use.So it will generate an error of multiple constant driver

To resolve this,always use intermediate variable,like "temp" for storing values and use value whenever u need it to your required output.