Debug：==42==ERROR: AddressSanitizer: heap-buffer-overflow on address

Encountered when brushing the buckle

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Error reason

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for (int j = i; j < leng; j++){
    
     nums[j] = nums[j+1];
}

Here is the reason for the error ： The address range of the array is exceeded
When j = leng when nums[j+1] = nums[leng+1] At this time, the maximum range of the array is nums[leng] and nums[leng+1] It doesn't exist

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Suggest to modify

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for (int j = i -1; j < leng; j++){
    
     nums[j -1] = nums[j];
}