New Electric LLC is planning to survey to check the satisfaction level of the trainees who participated in a short$-$term vocational course. Design a suitable questionnaire not exceeding $10$ questions, and get responses from $10$ participants. Write a C$++$ program to read the survey response either through the keyboard or as file input and perform an analysis of the response. Display the participants satisfaction level in terms of percentage against each question. The design must include any one validation metric such as validation of duplicate names, mobile numbers, email addresses, etc. C$++$