Build binary search tree

[Simran-Tuteja-2103059593355380 (Simran Tuteja)]

https://ide.codingblocks.com/s/63179
why is this code not building binary search tree, its giving runtime error

[Bittoo-Aggarwal-1179774968833362 (Bittoo Aggarwal)]

https://ide.codingblocks.com/s/65738

there were few mistakes i have corrected them , please check it out