Contents

#include "perfect_numbers.h"

static int aliquot_sum(int n)
{
   if (n == 1) {
      return 0;
   }
   int result = 1;
   int i;
   for (i = 2; i * i < n; ++i) {
      if ((n % i) == 0) {
         result += i + (n / i);
      }
   }
   return result + (i * i == n ? i : 0);
}

kind classify_number(int n)
{
   kind class = ERROR;
   if (n > 0) {
      int sum = aliquot_sum(n);
      if (sum > n) {
         class = ABUNDANT_NUMBER;
      } else if (sum < n) {
         class = DEFICIENT_NUMBER;
      } else {
         class = PERFECT_NUMBER;
      }
   }
   return class;
}

Version data entries

132 entries across 132 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.179	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.178	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.177	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.176	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.175	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.174	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.173	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.172	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.171	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.170	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.169	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.167	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.166	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.165	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.164	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.163	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.162	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.161	tracks/c/exercises/perfect-numbers/src/example.c
trackler-2.2.1.160	tracks/c/exercises/perfect-numbers/src/example.c