使用for循环解决分段提成问题(附C语言代码)

感谢 @优吖雅丫头 同学提供思路

# include<stdio.h>
# include<math.h>
int main(void){
int a,b;
int r=0;
float w;
printf("input a\n");
scanf("%d\n",&a);
if(a<=10){
  printf("w=%f\n",w=a*0.1);}
else{
  for(b=a-10;b>=0;b-=10)
{
  ++r;
}
if(r==1)
  printf("w1=%f\n", w=1+(a-10)*0.075);
  else if(r==2|r==3)
  printf("w2=%f\n",w=1.75+(a-20)*0.05);
  else if(r==4|r==5)
  printf("w4=%f\n",w=2.75+(a-40)*0.03);
  else if(r==6|r==7|r==8|r==9)
  printf("w=%f\n",w=3.35+(a-60)*0.015);
  else
  printf("w=%f\n",w=3.95+(a-100)*0.01);}
  return 0;}