颠倒数组中所有存储区

颠倒数组中所有存储区

即把数组中原有数据颠倒过来。

用C语言实现代码如下。

PS：本人提供代码并不是最优

#include<stdio.h>
void reverse(int *p_num,int size){
	int start = 0,end = size - 1;
	while(start < end){
		int tmp = p_num[start];
		p_num[start] = p_num[end];
		p_num[end] = tmp;
		start++;
		end--;
	}
}
int main(){
	int arr[] = {1,2,3,4,5},num = 0;
	reverse(arr,5);
	for(num = 0;num <= 4;num++){
		printf("%d",arr[num]);
	}
	printf("\n");
	return 0;
}

#include<stdio.h>
int *reverse(int *p_num,int size){
	int start = 0,end = size - 1;
	while(start < end){
		int tmp = p_num[start];
		p_num[start] = p_num[end];
		p_num[end] = tmp;
		start++;
		end--;
	}
	return p_num;
}
int main(){
	int arr[] = {1,2,3,4,5},num = 0;
	reverse(arr,5);
	for(num = 0;num <= 4;num++){
		printf("%d",arr[num]);
	}
	printf("\n");
	return 0;
}