Отобразить симметрично относительно вертикальной оси секторы матрицы

// Example program
#include <iostream>
#include <stdlib.h>
 
using namespace std;
 
typedef unsigned int my_type_data;
 
const my_type_data my_max_data_value=100;
 
typedef unsigned int my_type_counter;
const my_type_counter matrix_size=9;
 
my_type_data array[matrix_size][matrix_size];
 
void print_matrix(){
 
my_type_counter i;
my_type_counter j;
 
for(i=0;i!=matrix_size;++i){
 
cout<<endl;
 
for(j=0;j!=matrix_size;++j){
    
cout.fill('0'); 
cout.width(2);
 
cout<<array[i][j]<<",";
    
}//for
}//for
    
}
 
int main(){
    
long ltime;
int stime;
 
ltime = time (NULL);
stime=(unsigned int) ltime/2;
srand(stime);
 
my_type_counter i;
my_type_counter j;
 
for(i=0;i!=matrix_size;++i){
for(j=0;j!=matrix_size;++j){
    
array[i][j]=rand()%my_max_data_value;
    
}//for
}//for
    
cout<<endl<<endl<<"matrix before changes"<<endl;
print_matrix();
 
for(i=0;i!=matrix_size;++i){
for(j=0;j!=matrix_size;++j){
    
if(i>j){
if((i+j)<(matrix_size-1)){
my_type_data val=array[i][j];
array[i][j]=array[i][matrix_size-j-1];
array[i][matrix_size-j-1]=val;
}//if
}//if
    
}//for
}//for
 
cout<<endl<<endl<<"matrix after changes"<<endl;
print_matrix();
 
cout<<endl<<endl<<"stime="<<stime;
cout<<endl;
 
return 0;
}