Algoritma C++ Penjumlahan Matrix

#include <iostream>
using namespace std;

int main(){
    int x,y;

    //menentukan ordo matrixnya
    cout<<"masukkan baris ordo matrix : ";
    cin>>x;
    cout<<"masukkan kolom ordo matrix : ";
    cin>>y;
    cout<<endl;
    cout<<"ordo matrix = "<<x<<" x "<<y<<endl;

    //deklarasi 2
    int matrix1[x][y];
    int matrix2[x][y];
    int i,j;


    //input matrix pertama
    for(i=0;i<x;i++){
    for(j=0;j<y;j++){
    cout<<"masukkan matrix pertama baris ke-"<<i+1<<" kolom ke-"<<j+1<<" : ";
    cin>>matrix1[i][j];
    }
    }
    cout<<endl;

    //input matrix pertama
    cout<<"matrix pertama : "<<endl;
    for(i=0;i<x;i++){
    for(j=0;j<y;j++){
    cout<<matrix1[i][j]<<"   ";
    }
    cout<<"\n";
    }
    cout<<endl;

    //input matrix ke 2
    for(i=0;i<x;i++){
    for(j=0;j<y;j++){
    cout<<"masukkan matrix kedua baris ke-"<<i+1<<" kolom ke-"<<j+1<<" : ";
    cin>>matrix2[i][j];
    }
    }
    cout<<endl;

    //output matrix ke 2
    cout<<"matrix kedua : "<<endl;
    for(i=0;i<x;i++){
    for(j=0;j<y;j++){
    cout<<matrix2[i][j]<<"   ";
    }
    cout<<"\n";
    }
    cout<<endl;

    //output penjumlahan
    cout<<"Jumlah matrix pertama + matrix ke 2 : "<<endl;
    for(i=0;i<x;i++){
    for(j=0;j<y;j++){
    cout<<matrix1[i][j]+matrix2[i][j]<<"   ";
    }
    cout<<"\n";
    }
    return 0;
}


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