How to count the number of digits that make up the number I enter into the program, I mean that the program asks for a number, I give, for example, 151 and the program calculates that the number consists of 3 digits, how to count? Of course in c++ closing. - arnoldziq

simple - you divide by 10 and check if the number is greater than 1 - if not, then there is 1 digit, if yes, then divide by 100 and check if the number is greater than 1 - if not, then that there are 2 digits, if so, divide by 1000, etc. This is the dumbest yet simplest method I can think of You can also convert a number to a string and check the number of characters in the string... As you can see, there are many methods...

[C++] Counting Digits in an Input Number: How to Calculate & Display Total Digits

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#1 741303 13 Jul 2004 22:13

Mirdon Mirdon

Level 10

» |

Post #1
741303 13 Jul 2004 22:13

How to count the number of digits that make up the number I enter into the program, I mean that the program asks for a number, I give, for example, 151 and the program calculates that the number consists of 3 digits, how to count?

Of course in c++

closing. - arnoldziq
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#2 741428 13 Jul 2004 23:03

h-doc h-doc

Level 27

» | Helpful post? (+3)

Post #2
741428 13 Jul 2004 23:03

simple - you divide by 10 and check if the number is greater than 1 - if not, then there is 1 digit, if yes, then divide by 100 and check if the number is greater than 1 - if not, then that there are 2 digits, if so, divide by 1000, etc.
This is the dumbest yet simplest method I can think of
You can also convert a number to a string and check the number of characters in the string...
As you can see, there are many methods...
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#3 741522 13 Jul 2004 23:41

BoskiDialer BoskiDialer

Level 34

Post #3

741522 13 Jul 2004 23:41

  unsigned long int o;
  // przypisanie wartosci która ulegnie przebadaniu
  o = 123456

  int i;
  for(i=0;o>0;i++)
    o = o / 10;
  if (i==0) i=1;

  // odczyt ilosci tetrad podanej liczby
  jakas_zmienna = i;

#4 743684 15 Jul 2004 09:07

Mirdon Mirdon

Level 10

» | Topic author Helpful post? (+2)

Post #4
743684 15 Jul 2004 09:07

Thanks a lot
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[C++] Counting Digits in an Input Number: How to Calculate & Display Total Digits

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