geekHunter.js

function validEmail(email) {
    if (/[A-Z]/g.test(email) === true)
        return false;
    if (/.+@.+\.com/g.test(email) === false) return false;
    var searchAt = email.match(/\@/g) || [];
    if (searchAt.length !== 1) return false;
    if (email.length < 7 || email.length > 20) return false;
    return true;
}

function validPasswd(passwd) {
    if (/[A-Z]/g.test(passwd) === false || /[a-z]/g.test(passwd) === false || /[1-9]/g.test(passwd) === false) return false;
    if (passwd.search(" ") !== -1) return false;
    if (passwd.length < 7 || passwd.length > 20) return false;
    return true;
}

function validRePasswd(passwd, repasswd) {
    return passwd === repasswd;
}

function main(input) {
    var splitIn = input.split("\n");
    for (var i = 0; i < splitIn.length; i++) {
        var input = JSON.parse(splitIn[i]);
        var email = input[0],
            passwd = input[1],
            repasswd = input[2];
        console.log(validEmail(email) && validPasswd(passwd) && validRePasswd(passwd, repasswd));
    }
}

process.stdin.resume();
process.stdin.setEncoding("utf-8");
var stdin_input = "";
process.stdin.on("data", function (input) {
    stdin_input += input;
});
process.stdin.on("end", function () {
    main(stdin_input);
});