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Number of digits

Numbers
Data Types
Integers
Algorithms
Logic
Code
Diff
  • #include <math.h>
#include <stdint.h>

uint8_t number_of_digits(uint64_t n)
{
    return log10(n) + 1;
}
    • #include <stdlib.h>
    • #include <math.h>
    • #include <stdint.h>
    • uint_fast8_t number_of_digits(uint64_t n)
    • uint8_t number_of_digits(uint64_t n)
    • {
    • size_t x;
    • printf("%lu%n", n, &x);
    • return x;
    • return log10(n) + 1;
    • }