Time taken for problems
=======================

Problem 1
---------
real	0m0.121s
user	0m0.020s
sys	0m0.040s

Problem 2
---------
real	0m7.450s
user	0m6.560s
sys	0m0.024s

Problem 3
---------
real	0m0.085s
user	0m0.032s
sys	0m0.012s

Problem 4
---------
real	0m0.999s
user	0m0.880s
sys	0m0.032s

Problem 5
---------
real	0m0.183s
user	0m0.032s
sys	0m0.032s

Problem 6
---------
real	0m0.137s
user	0m0.032s
sys	0m0.016s