1843774_ac_0ms_24k.cpp

北大大牛代码 1240道题的原代码 超级权威

# include <stdio.h>

void main()
{
 long N, n, NO;
 scanf("%ld",&N);
 NO = 1;
 if(N%2&&N>1) NO++;
 for(n = 3; n*(n+1)/2<=N; n++)
  {
   if(n%2) if(N%n==0) NO++;
   if(n%2==0)  if(N%(n/2)==0&&(N/(n/2))%2) NO++;
  }
  printf("%ld\n",NO);
}