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/**
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 * @param {string} s
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 * @param {string} target
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 * @return {number}
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 */
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var rearrangeCharacters = function (s, target) {
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  let cnt = Number.MAX_VALUE;
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  let m1 = new Map();
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  for (const x of target) m1.set(x, m1.get(x) + 1 || 1);
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  let m2 = new Map();
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  for (const x of s) m2.set(x, m2.get(x) + 1 || 1);
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  for (let it of m1) {
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    let ch = it[0];
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    let x = it[1];
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    let y = m2.get(ch);
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    if (y === undefined) y = 0;
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    cnt = Math.min(cnt, Math.floor(y / x));
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  }
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  return cnt;
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};