pass by value means how to pass value to a function by making use of arguments. in pass by value we copy the data stored in the variable we specify and it is slower than pass by reference bcse t he data is copied . of we make changes in the copied data the original data is not affected. nd in pass by refernce or pass by address we send direct link to the variable itself . or passing pointer to a variable. it is faster bcse less time is consumed
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