Maximum Number of Coins You Can Get LeetCode solution in C++

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class Solution {
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 public:
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  int maxCoins(vector<int> &piles) {
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    sort(piles.begin(), piles.end(), greater<int>());
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    int myPilesCount = 0;
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    int myPilesSum = 0;
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    int PilesSize = piles.size();
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    int i = 1;
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    while (myPilesCount < (PilesSize / 3)) {
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      myPilesSum += piles[i];
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      myPilesCount++;
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      i += 2;
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    }
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    return myPilesSum;
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  }
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};