JavaScript Basics Sample Exam July 2014 - Logs Aggregator

function Solve(args) {
    var n = parseInt(args[0]);
    var map = {};

    for (var i = 0; i < n; i++) {
        var string = args[i+1];
        var arrProperties = string.split(' ');
        if (map[arrProperties[1]] == undefined) {
            map[arrProperties[1]] = [parseInt(arrProperties[2]), []];
        }
        else {
            map[arrProperties[1]][0] = map[arrProperties[1]][0] + parseInt(arrProperties[2]);
        }
        if (map[arrProperties[1]][1].indexOf(arrProperties[0]) == -1) {
            map[arrProperties[1]][1].push(arrProperties[0]);
        }
    }

    var mapKeys = Object.keys(map);
    mapKeys.sort();
    mapKeys.forEach(function (key) {
        map[key][1].sort();
        console.log("%s: %d [%s]", key, map[key][0], map[key][1].join(", "));
    });
}

Solve(["7",
"192.168.0.11 peter 33",
"10.10.17.33 alex 12",
"10.10.17.35 peter 30",
"10.10.17.34 peter 120",
"10.10.17.34 peter 120",
"212.50.118.81 alex 46",
"212.50.118.81 alex 4"]
);

Solve(["2",
"84.238.140.178 nakov 25",
"84.238.140.178 nakov 35"]
);