Question

C语言,编写一个程序,求100~~1000之间多少个整数,其各位数数学之和等于5?

Answer 1

解:源程序如下:
main()
{
int i,g,s,b,sum=0,n=0;
clrscr();
for (i=100;i<=1000;i++)
{
g=i%10;
s=i/10%10;
b=i/100;
sum=g+s+b;
if (sum==5)
n++;
}
printf("100~1000 you %d guo sum is 5!\n",n);
}