编辑代码

#include<stdio.h>
 void maxmin(float a[],int i,int j,float *fmax,float *fmin){
 	int mid;
 	float lmax,lmin,rmax,rmin;
 	if(i==j){
 		*fmax=a[i];
 		*fmin=a[j];
 		return;
	 }else if(i==j-1){
	 	if(a[i]>a[j]){
	 		*fmax=a[i];
 		    *fmin=a[j];
		 }else{
		 	*fmax=a[j];
 		    *fmin=a[i];
		 }
		 return;
	 }else{
	 	mid=(j-i)/2+i;
	 	maxmin(a,i,mid,&lmax,&lmin);
	 	maxmin(a,mid+1,j,&rmax,&rmin);
	 	if(lmax>rmax)
	 	*fmax=lmax;
	 	else
	 		*fmax=rmax;
	 	if(lmin<rmin)
	 	*fmin=lmin;
	 	else
	 	*fmin=rmin;
	 }
	 return;
 }
 int main(){
 float a[9]={11, 9, 20, 56, 42, 3, 7,15,16};
 float fmax,fmin;
 maxmin(a,0,8,&fmax,&fmin);
 printf("%f,%f",fmax,fmin);	
 }