-: Program Graph C++

Saya akan membuat program graph di C++ yang di dalamnya terdapat 2 input yang mewakili suatu koordinat di graph yang nantinya akan membentuk matriks.

Berikut Contoh Programnya :

#include "stdafx.h"
#include <stdio.h>
#include <iostream>
using namespace std;
int ordo[5][5];
void masukkan(int a, int b, int c){
for (int i = 1; i <= 4; i++){
for (int j = 1; j <= 4; j++)
if (i == a && j == b){
   ordo[a][b] = ordo[i][j];
   ordo[a][b] = c;
}
}
}
void tampilkan(int a, int b, int c){
for (int i = 1; i <= 4; i++){
for (int j = 1; j <= 4; j++)
   cout << ordo[i][j] << " ";
cout << endl;
}
}
void inisialisasi(){
for (int i = 1; i <= 4; i++){
for (int j = 1; j <= 4; j++)
   ordo[i][j] = 0;
}
}
void menu(){
cout << "-----------------MENU-----------------\n";
cout << "1. Masukkan Data\n";
cout << "2. Tampilkan\n";
cout << "0. Keluar\n";
cout << "Masukkan Pilihan Anda: ";
}
int main(){
inisialisasi();
int a, b, c;
int m;
do{
system("cls");
menu();
cin >> m;
switch (m){
case 1:
   system("cls");
   cout << "\nMasukkan Koordinat x : ";
   cin >> a;
   cout << "Masukkan Koordinat y : ";
   cin >> b;
   cout << "Masukkan Isi : ";
   cin >> c;
   if (a <= 4 && b <= 4){
    masukkan(a, b, c);
   }
   else{
    cout << "\nIndeks harus kurang dari 4\n";
   }break;
   system("pause");
case 2:system("cls");
      tampilkan(a, b, c); break;
      system("pause");
}system("pause");
} while (m != 0);
}

Contoh Gambar program Graph di C++ :