Example of calculating the number of pages in a python computing book

Example of calculating the number of pages in a python computing book

The example in this article describes how to calculate the number of pages of a book in python. It is a typical application in Python programming. Share it with you for your reference. The details are as follows:

Problem description: for the given page number n, calculate the number of numbers 0, 1, 2, 3, 4, 9 used in all pages respectively

The instance code is as follows:

def count_num1(page_num):   num_zero = 0   num_one = 0   num_two = 0   num_three = 0   num_four = 0   num_five = 0   num_six = 0   num_seven = 0   num_eight = 0   num_nine = 0   page_list = range(1,page_num + 1)   for page in page_list:     page = str(page)     num_zero += page.count('0')     num_one += page.count('1')     num_two += page.count('2')     num_three += page.count('3')     num_four += page.count('4')     num_five += page.count('5')     num_six += page.count('6')     num_seven += page.count('7')     num_eight += page.count('8')     num_nine += page.count('9')   result = [num_zero,num_one,num_two,num_three,num_four,num_five,num_six,num_seven,num_eight,num_nine]   return result  print count_num1(13) 

The code above is a little bloated, so I changed the code.

The modified code is as follows:

def count_num2(page_num):   page_list = range(1,page_num + 1)   result = [0 for i in range(10)]   for page in page_list:     page = str(page)     for i in range(10):       temp = page.count(str(i))       result[i] += temp   return resultprint count_num2(13)

The testing environment of this example is Python2.7.6.

The program output result is:

[1, 6, 2, 2, 1, 1, 1, 1, 1]

I hope this article will help you with Python programming.

Algorithm and analysis of statistics and integer factorization

1.
# Include <stdio. h>
# Include <stdlib. h>
# Include <string. h>

# Define N 2048 // if you have more than 2048 books to calculate, you need to apply for Memory later

Void func (unsigned int (* ptr) [10], int m, int idx)
{
Int I, j, h;
For (I = 1; I <= m; ++ I) {// This for can improve efficiency through algorithms, that is, to obtain the number of 0-9 low numbers based on high numbers, the algorithm is simple.
J = I;
While (j> 0 ){
+ Ptr [idx] [j % 10];
J/= 10;
}
}
}

Int main ()
{
Unsigned int arr [2048] [10] = {0}; // Number of times each book was stored 0-9
Unsigned int (* ptr) [10] = 0;

Unsigned int m [N], n; // m [N] stores the number of pages per book
Unsigned int * m_ptr;
Unsigned int I;

Printf ("Input n (the lines of m ):");
Scanf ("% u", & n );
If (n> N) {// if there are more than 2048 books, apply for memory to save
Ptr = (unsigned int (*) [10]) malloc (n * 10 * sizeof (unsigned int ));
M_ptr = (unsigned int *) malloc (n * sizeof (unsigned int ));
}
Else {
Ptr = arr;
M_ptr = m;
}

Printf ("Input % u numbers:", n );
For (I = 0; I <n; ++ I ){
Scanf ("% u", m_ptr + I );
}

For (I = 0; I <n; ++ I) {// separate with the preceding for, which avoids disturbing the input buffer optimized by the compiler and can be merged to it.
Func (ptr, m_ptr [I], I );
}
// Output 0-9
Printf ("number: % 5u % 5u % 5u % 5u % 5u % 5u % 5u % 5u % 5u % 5u \ n", 0, 1, 2 ...... remaining full text>

Word2010 page number Rome numeric problem urgent

Divide your article into sections, use the roman numerals as a section, do not use page numbers as a section, and use numbers as a section. You can insert a subscriber to subscribe to the subscribe. Be sure to cancel "link to the previous"
1. Place the cursor at the top of the body: menu bar -- insert -- Separator Type -- continuous -- OK.
2. Menu Bar -- View -- header and footer -- (the "header and footer" floating toolbar appears) -- place the cursor in the footer, click Cancel "link to the previous one" (the button is "two parallel pages"): The "Same as the previous section" in the upper-right corner of the footer dotted box disappears.
3. Click "set page number format" (the button is "Hand and page") -- page number arrangement -- (Roman numerals) Number Format: select 1, 2, 3,... as needed ,......; Start page: modify "1" -- OK.
4. Click "insert page number" (the button is "# on paper #").
5. Close the "floating toolbar for headers and footers ".