Unable to point out the error

#1


Here goes my code.

#2

@tanjuljain19 It can be solved easily by mapping the postions and then swapping the values. I dont know your approach but if you are using lower_bound() then you have to first sort the array

#3

https://ide.codingblocks.com/s/228837 Unable to resolve the error

#4

Don’t know how to update index of corresponding element in map

#5

@tanjuljain19 just start from the largest element . And yes update in maps using normal updation.

#6

https://ide.codingblocks.com/s/231944 showing error while displaying answer