03. Air Pollution

function airPollution(areas, commands) {
    areas = areas.map(x => x.split(' ').map(Number));

    while (commands.length !== 0){
        let [com, arg] = commands.shift().split(' ');
        if (com === 'smog'){
            areas = areas.map(x => x.map(i => i + Number(arg)));
        } else {
            let index = Number(arg);
            if (com === 'breeze'){
                for (let row = 0; row < areas.length; row++) {
                    let number = areas[index][row];
                    areas[index][row] -= number < 15 ? number : 15;
                }
            } else if (com === 'gale'){
                for (let col = 0; col < areas.length; col++) {
                    let number = areas[col][index];
                    areas[col][index] -= number < 20 ? number : 20;
                }
            }
        }
    }

    let pollutedAreas = [];

    for (let i = 0; i < areas.length; i++) {
        for (let j = 0; j < areas[i].length; j++) {
           if (areas[i][j] >= 50){
            pollutedAreas.push(`[${i}-${j}]`);
           }
        }
    }

    if (pollutedAreas.length === 0){
        console.log('No polluted areas');
    } else {
        console.log(`Polluted areas: ${pollutedAreas.join(', ')}`);
    }
}