target_sistemas

// Pergunta 1
let INDICE = 13;
let SOMA = 0;
let K = 0;

while (K < INDICE) {
  K = K + 1;
  SOMA = SOMA + K;
}

console.log(SOMA); // Resultado: 91

// Pergunta 2

const number = 21;

const isFibonacci = (n) => {
  const isLessThanZero = n < 0;
  if (isLessThanZero) return false;

  let a = 0;
  let b = 1;

  while (a <= n) {
    if (a === n) return true;
    [a, b] = [b, a + b];
  }

  return false;
};

isFibonacci(number)
  ? console.log(`\nThe number ${number} belongs to the Fibonacci sequence.`)
  : console.log(
      `\nThe number ${number} does NOT belong to the Fibonacci sequence.`
    );

// Pergunta 3
const getBilling = (() => {
  const diaryBilling = [
    {
      dia: 1,
      valor: 22174.1664,
    },
    {
      dia: 2,
      valor: 24537.6698,
    },
    {
      dia: 3,
      valor: 26139.6134,
    },
    {
      dia: 4,
      valor: 0.0,
    },
    {
      dia: 5,
      valor: 0.0,
    },
    {
      dia: 6,
      valor: 26742.6612,
    },
    {
      dia: 7,
      valor: 0.0,
    },
    {
      dia: 8,
      valor: 42889.2258,
    },
    {
      dia: 9,
      valor: 46251.174,
    },
    {
      dia: 10,
      valor: 11191.4722,
    },
    {
      dia: 11,
      valor: 0.0,
    },
    {
      dia: 12,
      valor: 0.0,
    },
    {
      dia: 13,
      valor: 3847.4823,
    },
    {
      dia: 14,
      valor: 373.7838,
    },
    {
      dia: 15,
      valor: 2659.7563,
    },
    {
      dia: 16,
      valor: 48924.2448,
    },
    {
      dia: 17,
      valor: 18419.2614,
    },
    {
      dia: 18,
      valor: 0.0,
    },
    {
      dia: 19,
      valor: 0.0,
    },
    {
      dia: 20,
      valor: 35240.1826,
    },
    {
      dia: 21,
      valor: 43829.1667,
    },
    {
      dia: 22,
      valor: 18235.6852,
    },
    {
      dia: 23,
      valor: 4355.0662,
    },
    {
      dia: 24,
      valor: 13327.1025,
    },
    {
      dia: 25,
      valor: 0.0,
    },
    {
      dia: 26,
      valor: 0.0,
    },
    {
      dia: 27,
      valor: 25681.8318,
    },
    {
      dia: 28,
      valor: 1718.1221,
    },
    {
      dia: 29,
      valor: 13220.495,
    },
    {
      dia: 30,
      valor: 8414.61,
    },
  ];

  const isWorkDay = (v) => v.valor !== 0;
  const values = diaryBilling.filter(isWorkDay).map((v) => v.valor);

  const minBilling = Math.min(...values);
  const maxBilling = Math.max(...values);

  const billingTotal = values.reduce((acc, curr) => acc + curr, 0);

  const averageBilling = billingTotal / values.length;

  const aboveAverageDays = diaryBilling.filter(
    (v) => v.valor > averageBilling
  ).length;

  console.log(`\nMenor valor de faturamento: R$ ${minBilling}`);
  console.log(`Maior valor de faturamento: R$ ${maxBilling}`);
  console.log(
    `Número de dias com faturamento superior à média mensal: ${aboveAverageDays}`
  );
})();

// Pergunta 4
const percentBilling = (() => {
  const billings = {
    SP: 67836.43,
    RJ: 36678.66,
    MG: 29229.88,
    ES: 27165.48,
    Others: 19849.53,
  };

  const total = Object.values(billings).reduce((acc, valor) => acc + valor, 0);

  console.log("\nPercentual de representação de cada estado:");
  Object.entries(billings).forEach(([state, value]) => {
    const percent = ((value / total) * 100).toFixed(2);
    console.log(`${state}: ${percent} %`);
  });
})();

// Pergunta 5
const reverseString = (() => {
  const inputString = "reverse";
  let invertedString = "";

  for (let i = inputString.length - 1; i >= 0; i--) {
    invertedString += inputString[i];
  }

  console.log(`\n${invertedString}`);
})();