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  1. Queue using Two Stacks
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Queue using Two Stacks

  • vuhuutuan0
     + 0 comments

    My answer with Typescript, cause no starting function, i was write for myself

    function main() {
    const ws: WriteStream = createWriteStream(process.env['OUTPUT_PATH']);
    const querys_count: number = parseInt(readLine().trim(), 10);
    const queues: number[] = []

    for (let i = 0; i < querys_count; i++) {
        let [type, queue] = readLine().split(' ').map(sTemp => parseInt(sTemp, 10));
        switch (type) {
            case 1: queues.push(queue); break;
            case 2: queues.shift(); break;
            case 3: ws.write(queues[0] + '\n'); break;
        }
    }

    ws.end();
}