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LeetCode-1047

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题目

结果

代码

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func removeDuplicates(S string) string {
	stk := make([]rune, 0)
	for _, v := range S {
		if len(stk) != 0 && stk[len(stk)-1] == v {
			stk = stk[:len(stk)-1]
		} else {
			stk = append(stk, v)
		}
	}
	return string(stk)
}