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/**
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 * @param {string[]} cpdomains
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 * @return {string[]}
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 */
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var subdomainVisits = function (cpdomains) {
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  let map = {};
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  cpdomains.forEach((d) => {
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    let data = d.split(" ");
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    let arr = data[1].split(".");
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    while (arr.length > 0) {
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      if (arr.join(".") in map) map[arr.join(".")] += +data[0];
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      else map[arr.join(".")] = +data[0];
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      arr.shift();
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    }
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  });
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  let result = [];
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  for (let key in map) result.push(map[key] + " " + key);
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  return result;
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};