There are 10 digits in a billion.
Usually has 10 digits.
10 digits
two digits
1023456789
The value of Pi is 3.14159, but the first 10 digits are 3.141592658
10+10+40
1111111111
There are 10 digits from which the first number can be selected, 10 digits from which the second number can be chosen and 10 from which the third number can be picked. This gives you a total number of combinations of 10 x 10 x 10 = 1000.
To count the number of times a digit occurs in an integer, start by initializing an array of ten counts of digits, such as int digits[10];Then, in a loop while the number is non zero, increment the element in the digits array that corresponds to the units digit, and then divide the number by ten, such as digits[number%10]++ and number/=10;int digits[10];int i;int number = some number;for (i=0; i
The answer is 10P3 = 10!/(10-3)! = 10*9*8 = 720
10 digits are numbers in the billions.