What is the error in my gender validation program?

Question

When I click into "male" and submit it works as I expected but when I select female and submit, it doesn't work. Please help me out.
https://code.sololearn.com/WK9kZPYxlIa0/?ref=app

Answer 1

Missing braces

if(c[i].checked)
{
valid=true;
break;
}