Question

I want to copy all the elements in f1() to f2() but in reverse order (C++)

this is my code:

#include <iostream>
#include <iomanip>
using namespace std;

const int R=10;
const int C=10;
int Array[R][C] ;

/////////////////////////////////////
void f1(){

for(int i=0 ; i<R ; i++){
   for(int j=0 ; j<C ; j++){
Array[i][j]= (rand () %100) + 1;
}
}

for(int i=0 ; i<R ; i++){
   for(int j=0 ; j<C ; j++){
   cout<<"["<<i<<"]["<<j<<"]="<<setw(3)<<Array[i][j]<<" ";
   }
cout<<endl;
}

cout<<"\n\n\n";
}

void f2(){
cout<<"////////////////////////////////////"<<endl;
cout<<"\n";
const int R2=10;
const int C2=10;
int Array[R][C];

for (int i=0 ; R<R2 ;i++){
   for ( int j=0 ; C<C2 ; j++){
int swaping = Array[R][C];
Array[R][C]=Array [R2][C2];
Array [R2][C2]=swaping;
Array[R][C]++;
Array [R2][C2]--;

   cout<<"["<<i<<"]["<<j<<"]="<<setw(3)<<Array[i][j]<<" ";
}
}

cout<<"\n\n";

}

int main()
{
f1();
f2();

return 0;
}

Answer 1

Program

#include <iostream>
#include <iomanip>
using namespace std;

const int R=10;
const int C=10;
int Array[R][C] ;

void f1(){

for(int i=0 ; i<R ; i++){
for(int j=0 ; j<C ; j++){
Array[i][j]= (rand () %100) + 1;
}
}

for(int i=0 ; i<R ; i++){
for(int j=0 ; j<C ; j++){
cout<<"["<<i<<"]["<<j<<"]="<<setw(3)<<Array[i][j]<<" ";
}
cout<<endl;
}

cout<<"\n\n\n";
}

void f2(){
cout<<"////////////////////////////////////"<<endl;
cout<<"\n";
const int R2=10;
const int C2=10;
int Arraycopy[R][C];
int k=R2-1; //last index
int m=C2-1; //last index

for (int i=0 ; i<R2 ;i++){
m=C2-1;
for ( int j=0 ; j<C2 ; j++){
Arraycopy[i][j]=Array[k][m];
cout<<"["<<i<<"]["<<j<<"]="<<setw(3)<<Arraycopy[i][j]<<" ";
m--;
}
k--;
cout<<endl;
}

cout<<"\n\n";

}

int main()
{
f1();
f2();

return 0;
}

Screenshot of the program

Output

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