Question

用do...while语句实现：求100~1000之间有多少个整数,其各位数字之和为5.

Answer 1

#include

void main()

{

int i=999;

int b[3];

int n = 0;

do

{

int a = i;

do

{

b[n] = a%10;

n++;

a = a/10;

} while (a);

n = 0;

if(b[0]+b[1]+b[2]==5)

{

printf("%d ",i);

}

} while (--i&&i>=100);

}