06. Mine

function zad3(input){

    let counter = 0;

    for(let i = 0; i < Number(input[0]); i++){


        let expectedAvgDaily = Number(input[++counter]);
        let days = Number(input[++counter]);
        let actualAvgDaily = 0;

        for(let j = 0; j < days; j++){

            actualAvgDaily += Number(input[++counter]);

        }

        actualAvgDaily /= days;

        if(actualAvgDaily >= expectedAvgDaily){

            console.log(`Good job! Average gold per day: ${actualAvgDaily.toFixed(2)}.`);
        }else{
            console.log(`You need ${(expectedAvgDaily - actualAvgDaily).toFixed(2)} gold.`);
        }
    }

}