Compliation Error Due to Hashmap.Replace/Remove method

WHAT DOES THIS MEAN ???

Main.java:38: remove(java.lang.Object) in java.util.Map<java.lang.Integer,java.lang.Integer> cannot be applied to (int,int)
m.remove(a[i], count);
^
Note: Main.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error

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