int searchInsert(int* nums, int numsSize, int target){
    int low = 0, high = numsSize - 1, mid;
    while (low <= high) {
        mid = low + (high - low) / 2;
        if (target > nums[mid])
            low = mid + 1;
        else if (target < nums[mid])
            high = mid - 1;
        else
            return mid;
    }
    return low;
}