function solve(arr) {
    var regex = /((?:[a-z]+)(?: [a-z]+)?)\s*-\s*([\S].*[\S])\s*:\s*(\d+)/i;
    var exams = {};
    var student,
        exam,
        result;
    for (var i = 0; i < arr.length; i++) {
        var obj = arr[i];
        var match = obj.match(regex);
        result = Number(match[3].trim());
        student = match[1].trim();
        exam = match[2].trim();
        if (result < 0 || result > 400) {
            continue;
        }
        if (!(exam in exams)) {
            exams[exam] = [];
            exams[exam].push({name: student, result: result, makeUpExams: 0});
            continue;
        }
        for (var j = 0, len = exams[exam].length; j < len; j++) {
            var entry = exams[exam][j];
            if (entry.name === student) {
                entry.makeUpExams++;
                entry.result = Math.max(result, entry.result);
                break;
            }
            if (j === len - 1) {
                exams[exam].push({name: student, result: result, makeUpExams: 0});

            }
        }
    }


    for (var exam in exams) {
        exams[exam] = exams[exam].sort(function (x,y) {
            if (x.result > y.result) {
                return -1;
            } else if (x.result < y.result) {
                return 1;
            }
            if (x.makeUpExams > y.makeUpExams) {
                return 1;
            } else if (x.makeUpExams < y.makeUpExams) {
                return -1;
            }
            return x.name.localeCompare(y.name);
        });
    }
    console.log(JSON.stringify(exams));

}

//var arr = [ 'Peter Jackson - Java : 350',
//    'Jane - JavaScript : 200',
//    'Jane     -    JavaScript :     400',
//    'Simon Cowell - PHP : 100',
//    'Simon Cowell-PHP: 500',
//    'Simon Cowell - PHP : 200' ];
//arr = ['Simon Cowell - PHP : 100',
//    'Simon Cowell-PHP: 500',
//    'Peter Jackson - PHP: 350',
//    'Simon Cowell - PHP : 360'];
//
//solve(arr);