I was prepared for this question with the following response. No, but I was accused of cheating by my 12th grade math teacher and later vindicated. The situation was the class was very slow and we were working on x+y+z=n questions for three weeks already. I was bored and wanted to move on but I was stuck at the pace of the class. I decided to make life easier by making a quick basic program to do this for me. I wrote a program that solved up to x+y+z+a+b=n. Happy with it, I then converted it to Casio's calculator's programming language. When the fifth week ended we had a test, I completed it in a matter of a few minutes. The teacher insisted I had a copy of the answer key since it took me four minutes to get 100%. He called my mom into the principles office and declared I cheated. I told my side of the story and my mom insisted he give me a problem to solve. On the spot he made one up but it was very basic and by the time I sat down I had solved 1/3 of it already. They went on about the "program" I claimed to have written...never asked to see it. in about four minutes I was done. the answer was correct and the principle determined I likely did not cheat and my story was correct. The sad thing was the teacher was so hurt he never gave me credit for the test or let me retake it.