i have following doubts regarding c/c++...
1) Is unsigned data types are faster than signed ones? I found them fast on some problems..
2) I had seen some codes which requires operations upto square roots..it looks like.
if(i*i
we can also calculate square root once rather than calculating the product again and again..which one is faster??
3) Is pre-assigning the data in array helps to reduce time..because i found it takes long time in problem DIV
4) which one is faster storing the data and printing at once..or print as we have them..(for integers)