Frequency map in array

#1


why is it failing at some testcases

#2

hi @nirupama1 please share the link/description of the problem

#3
#4

hi @nirupama1 i dont know which question you are trying to solve so please share its link/description with me

#5

we have to find the element with maximum frequency in a given array.
5
1 2 2 2 3
output 2

#6

@nirupama1 iā€™d suggest you to follow the following approach:
firstly use unordered_map to store frequency of elements.
Now you have key-value pairs for element-frequency
to find maximum frequency you can iterate over the map and update the maximum frequency variable. You can find the syntax here https://www.geeksforgeeks.org/unordered_map-in-cpp-stl/

Using a map is better than making an array for frequency because you dont know the range of the elements.