数据结构 数组 数据结构之数组翻转的实现方法

#include<stdio.h> 
#define M 20 
 
void fun(int *x,int n) 
{ 
  int *i, *j, *p, m=n/2; 
  i = x; 
  j = x+n-1; 
  p = x+m; 
  for( ; i<p; ++i,--j) 
  { 
    int t = *i; 
    *i = *j; 
    *j = t; 
  } 
} 
 
void main() 
{ 
  int i,a[M],n; 
  printf("Enter n(n<20):\n"); 
  scanf("%d",&n); 
  printf("The original array:\n"); 
  for(i=0; i<n; ++i)  
  { 
    scanf("%d", a+i); 
  } 
  fun(a,i); 
  printf("\nThe array inverted:\n"); 
  for(i=0; i<n; ++i)  
  { 
    printf("%d ", *(a+i)); 
  } 
    printf("\n"); 
} 

#include<iostream> 
#define M 20 
 
void fun(int *x,int n) 
{ 
  int *i, *j, *p, m=n/2; 
  i = x; 
  j = x+n-1; 
  p = x+m; 
  for( ; i<p; ++i,--j) 
  { 
    std::swap(*i,*j); 
  } 
} 
 
void main() 
{ 
  <span style="white-space:pre">  </span>int i,a[M],n; 
<span style="white-space:pre">  </span>std::cout<<"Enter n(n<20):"<<std::endl; 
  std::cin>>n; 
  std::cout<<"The original array:"<<std::endl; 
  <span style="white-space:pre">  </span>for(i=0; i<n; ++i)  
  { 
    std::cin>>*(a+i); 
  } 
  <span style="white-space:pre"> </span> fun(a,i); 
  std::cout<<std::endl<<"The array inverted:"<<std::endl; 
  <span style="white-space:pre">  </span>for(i=0; i<n; ++i)  
  { 
    std::cout<<*(a+i)<<" "; 
  } 
  std::cout<<std::endl; 
} 

<?php 
$arrOrigin = array(1,2,3,4,5,6,7,8,9,10); 
$arrReverse = array_reverse($arrOrigin); 
echo '原始数组：'; 
print_r($arrOrigin); 
echo '<br/>'; 
echo '翻转后的数组：'; 
print_r($arrReverse); 
?>