bubble-sort

const blocks = [
  {
    gym: true,
    school: true,
    store: true,
  },
  {
    gym: false,
    school: true,
    store: false,
  },
  {
    gym: true,
    school: false,
    store: false,
  },
  {
    gym: false,
    school: true,
    store: false,
  },
  {
    gym: false,
    school: true,
    store: true,
  },
];
const reqs = ["gym", "school", "store"]
const res = []

for (const blockIndex in blocks) {
  let score = 0;
  for (const req of reqs) {
    if (blocks[blockIndex][req]) {
      score++;
    }
  }
  res.push({ block: blockIndex, score })
}

console.log(res)

const sortedScores = bubbleSort(res.map(({score}) => score))
const maximumBlockScore = sortedScores[sortedScores.length - 1];
const desiredBlock = res.filter(({ score }) => score === maximumBlockScore);

console.log(desiredBlock);

function bubbleSort(array) {
  for (let i = 0; i < array.length; i++) {
    for (let j = 0; j < array.length; j++) {
      if (array[j] > array[j + 1]) {
        let temp = array[j];
        array[j] = array[j + 1];
        array[j + 1] = temp;
      }
    }
  }
  return array;
}