5. For each of the code fragments given below, give a bound of the form (f(n)) on its running time on an input of size n. Justify your answer. (a) for(i=1;in+100;i=i+1)dofor(j=i;ji2;j=j+1)dosum=sum+j (b) for (i=1;in;i=2i) do for (j=1;jlgn;j=j3) do print ("hi")