f=open("in2_9.txt",'r') f1=open("out_19_2_9.txt",'w') n=int(f.readline()) import time start=time.clock() a , b, sum1=1,1,0 count=0 if(int(n)==1): sum1=a elif(int(n)==2): sum1=a+b else: sum1=a+b for i in range(3,int(n)+1): c=a+b count=count+1 a=b b=c sum1=sum1+c t1=time.clock()-start import sys ##print ("time taken") + str(t1) ##print ("sum of numbers=") + str(sum1) ##print ("no. of addition=") + str(count) total=sys.getsizeof(a)+sys.getsizeof(b)+sys.getsizeof(sum1)+sys.getsizeof(count) ##print ("memory used=") +str(total) f1.write("\nSum of no.="+str(sum1) +"\nTime taken="+str(t1)+ "\nNo. of addition="+str(count)+"\nMemory used="+ str(total)) f.close() f1.close()