哪位大佬能帮我看看吗？80分真不知道错哪了 球球了谢谢```c #include <stdio.h>

void pingjun(int sum,int size){ int u,v; u=sum/size; v=sum10/size-u10; printf("%d.%d",u,v); }

int main(){

int n,k,sum_a=0,sum_b=0,sum=0,size_a=0,size_b=0;
scanf("%d%d",&n,&k);
for(int i=k;i<=n;i=i+k){
	sum_a=sum_a+i;
	size_a++;
}
sum=(1+n)*n/2;
sum_b=sum-sum_a;
size_b=n-size_a;

pingjun(sum_a,size_a);
printf(" ");
pingjun(sum_b,size_b);

return 0;

}