Hi All,I have 4 fields.(2 checkbox fields and 2 text fields)
Checkbox field name: Account_checkbox__c
                                   Contact_checkbox__c
Text Fields: Lenght__c
                   Salary__c
             
The scenario will be like this.

Lenght__c (Text) == 10000(containing some data)
Salary__c(Text) == null(doesn't contain any data){if this contains any data don't throw the validation}
Account_checkbox__c = true (or) Contact_checkbox__c = true {any one of the field checkbox makes to true, throw validation}
then fire the validation.

Could you please help me out how to figure that out.