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#include<iostream>
#include<conio.h>
#include<iomanip>
using namespace std;
int matrix();
void ordPair();
int size, i, j, ans, matSize, haha;
int mat[16][16];
int main()
{
int size, choice;
do{
system("cls");
cout<<"[1] Matrix\n[2] Ordered Pair\nEnter choice: ";
cin>>choice;
switch(choice)
{
case 1: matrix();
break;
case 2: ordPair();
break;
default: break;
}
system("cls");
cout<<"Do you want to try again?\n[1] Yes\n[0] No\n";
cin>>ans;
}while(ans!=0);
getch();
return 0;
}
int matrix()
{
int size, i, j;
int mat[10][10];
system("cls");
cout<<"[2] 2x2\n[3] 3x3\n[4] 4x4\nEnter choice: ";
cin>>size;
cout<<"Enter matrix elements(0 and 1 only)"<<endl;
for(j=1; j<=size; j++)
{
for(i=1; i<=size; i++)
{
cout<<"Element["<<i<<"]["<<j<<"]: ";
cin>>mat[i][j];
}
}
system("cls");
cout<<"Displaying matrix: "<<endl;
for(i=1; i<=size; i++)
{
for(j=1; j<=size; j++)
{
cout<<setw(4)<<left<<mat[i][j];
}
cout<<endl;
}
cout<<"Ordered pair:"<<endl;
cout<<"{";
for(i=1; i<=size; i++)
{
for(j=1; j<=size; j++)
{
if(mat[i][j]==1)
cout<<"("<<i<<", "<<j<<")";
}
}
cout<<"}"<<endl;
getch();
return 0;
}
void ordPair()
{
int size, i, j, matmat;
int temp1,temp2;
int pair[16][16];
system("cls");
cout<<"[2] 2x2\n[3] 3x3\n[4] 4x4\nEnter size of matrix: ";
cin>>matSize;
if(matSize>4)
{
cout<<"Invalid input!!"<<endl;
system("pause");
ordPair();
system("pause");
}
matmat=matSize*matSize;
cout<<"Enter number of ordered pairs to be entered(1-"<<matmat<<" only): ";
cin>>size;
do{if(size>matmat)
{
cout<<"Invalid input!!"<<endl;
system("pause");
cout<<endl;
cout<<"Enter again: ";
cin>>size;
}}while(size>matmat);
for(i=1; i<=size; i++)
{
for(j=1;j<=size;j++)
{
pair[i][j]=0;
}
}
for(int k=1; k<=size;k++)
{
cout<<"Enter domain["<<k<<"]: ";
cin>>temp1;
cout<<"Enter range["<<k<<"]: ";
cin>>temp2;
cout<<endl;
pair[temp1][temp2]=1;
}
cout<<endl;
system("cls");
cout<<"Matrix:"<<endl;
for(i=1; i<=matSize; i++)
{
for(j=1; j<=matSize; j++)
{
cout<<setw(4)<<left<<pair[i][j];
}
cout<<endl;
}
cout<<endl;
getch();
}
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