Hello friends,I am new to this board and not an experience programmer.I am still learning c++.

I need ur help with this simple code.

The output should be as follows

Enter the gallons used(-1 to end input): some value
Enter the miles driven: some value
The miles/gallon for this tank was: some value

repeat this
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.
.
.
.
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till user enters -1 for gallons

then calculate the total average of all entered data

The total average comes out: some value

hope u get that.If u do ,plz help me asap but remember u can only use

if,if/else,while,do/while,switch and for structures/statements.

I have attached my code so that u can check it and correct it.