00:00:13 problem A
00:06:47 problem B
00:15:44 problem D
00:27:15 problem I
00:33:27 problem K
00:42:03 problem M
00:51:32 problem N
00:56:47 problem T
01:02:22 problem X
01:14:29 problem O
Problems Solved:
A : https://ideone.com/1qgGU5
B : https://ideone.com/8ehDiM
K : https://ideone.com/L5TxUE
M : https://ideone.com/bgrsSN
T : https://ideone.com/VVxlaE
D : https://ideone.com/rAvjoy
I : https://ideone.com/AWhUsa
X : https://ideone.com/KyUPe4
N : https://ideone.com/lMqj9B
O : https://ideone.com/A3Z7Zv
