Give you an array `nums`, for each element `nums[i]`, please count the number of all numbers smaller than it in the array. In other words, for each `nums[i]` you have to calculate the number of valid `j`, where `j` - Code World

Give you an array `nums`, for each element `nums[i]`, please count the number of all numbers smaller than it in the array. In other words, for each `nums[i]` you have to calculate the number of valid `j`, where `j`

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