Question

C语言题目？

Answer 1

#include<stdio.h>

int main()

{ int number,sum;

  int in;

  scanf("%d",&in);

  /*----------*/

  if(in<0)in=-in;

  for(number=sum=0; in; in/=10)

  { number++;

    sum+=in%10;

  }

  printf("number=%d, sum=%d\n",number,sum);

  return 0;

}

Answer 2

char string[32];
int i;
/* 计算长度 */
itoa(abs(in), string, 16);

number=strlen(string);
/* 求和 */
sum=0;
for( i= 0, i< number; i++ )
sum += atoi( string[i]) ;