WHY AFTER MAKING THE CHANGES THAT STEP 3 REQUIRED DID I GET THAT EXPECTED OUTPUT??????????

Step 1: Remove areas4.cpp from the project and add the swapNums cpp program in your Lab6 folder to the project. Below is a copy of the source code 1 / Lab 6 swapNums.cpp UsingValue and Reference Parameters 2 I/ This program uses a function to swap the values in two variables. 3 I/ PUT YOUR NAME HERE. 4 #include 5 usingnamespace std 6 7 Function prototype 8 void swapNums(int, int); 9 10 /** 11 int main() 12 13 int num15, 14 15 16 / Print the two variable values 17Cout