Some projects--permutation of two-dimensional arrays

Title Description

Write a function that enables a given two-dimensional array (3x3) transpose, that is, the row and column interchange.

Input

A 3x3 matrix

Output

The Matrix after transpose

Sample input

1 2 34 5 67 8 9

Sample output

Answer

#include <iostream>using namespace std;void zhuangzhi (int c[3][3]) {    int b[3][3],i,j;    for (i=0;i<3;i++) for        (j=0;j<3;j++)        b[j][i]=c[i][j];    for (i=0;i<3;i++) for        (j=0;j<3;j++)        c[i][j]=b[i][j];} int main () {  int a[3][3];  int i,j;  for (i=0; i<3; i++) for    (j=0; j<3; j + +)       cin>>a[i][j];  Zhuangzhi (a);  For (i=0, i<3; i++)  {for    (j=0; j<3; j + +)      cout<<a[i][j]<< "";    cout<<endl;  }  return 0;}

Gradually found that they forget some of the contents of the last semester, at the beginning only to think that the change of formal parameters will not affect the actual parameters, so in the formal parameters there are various pointers, references, and finally to take the address, all error. There are many ways to know that the two-dimensional function itself is a pointer, the change of the parameters can change the actual parameters, although do not know why c=b did not change .... Just give yourself a warning, remember that there is time to review the previous content

Some projects--permutation of two-dimensional arrays