Traversing multidimensional Arrays (Traverse multidimensioned Arrays)

Source: Internet
Author: User
Tags arrays

Use subscript and pointers to traverse two-dimensional arrays, respectively.

Using pointers to traverse

#include <iostream>
using namespace std;

int main()
{

  int ia[3][4] = {      // 3 个元素,每个元素是一个有4 个int 元素的数组
  {0, 1, 2, 3} ,          // 0 行的初始化列表
  {4, 5, 6, 7} ,          // 1 行的初始化列表
  {8, 9, 10, 11}          // 2 行的初始化列表
          };

  int (*p)[4];

  for (p = ia; p != ia + 3; ++p)
    for (int *q = *p; q != *p + 4; ++q)
      cout << *q <<endl;

    return 0;
}

Using the subscript traversal

#include <iostream>
using namespace std;

int main()
{

  int ia[3][4] = {      // 3 个元素,每个元素是一个有4 个int 元素的数组
  {0, 1, 2, 3} ,          // 0 行的初始化列表
  {4, 5, 6, 7} ,          // 1 行的初始化列表
  {8, 9, 10, 11}          // 2 行的初始化列表
          };

  int (*p)[4];

  for(size_t i=0; i!=3; i++)
    for(size_t j=0; j!=4; j++)
      cout<<ia[i][j]<<endl;

    return 0;
}

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.