belajar C++

MEMBUAT PROGRAM SEDERHANA MENGGUNAKAN ARRAY

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{   int matriksa [100][100];
    int matriksb [100][100];
    int b [100][100];
    int i,j,barisa,koloma,barisb,kolomb;
    cout << "jumlah baris1= ";
    cin >>barisa;
    cout << "jumlah kolom1= ";
    cin >>koloma;
    cout<<"jumlah baris2= ";
    cin >>barisb;
    cout <<"jumlah kolom2= ";
    cin >>kolomb;
    cout << "\n";
    if (koloma != barisb)
        cout << "Ukuran tidak valide";
    else {
    for (i=0; i < barisa; i++) {
        for (j =0; j < koloma; j++) {
        cout<<"isi matriks 1= [" << (i+1) << "," << (j+1) << "] : ";
        cin>>matriksa [i][j];
    }
}
    for (i=0; i < barisb; i++) {
        for (j=0; j < kolomb; j++) {
        cout<<"isi matriks 2= [" << (i+1) << "," << (j+1) << "] : ";
        cin>>matriksb [i][j];
    }
}
   cout << "hasil penjumlahan matriks 1 dan 2 = " << "\n" ;
    for (i= 0; i< koloma; i++){
     for (j=0 ; j< barisa;j++) {
           b[i][j] = matriksa [i][j]+ matriksb [i][j];
        cout << "matriks ["<< i+1 <<" ] ["<< j+1 <<" ] adalah " << b[i][j] <<"\n";
}
     }
cout << "\n";
}
getch();
return 0;
}