C++ using Matrix & Binary search & array pro

Different ways to pass an array to a function

#include

#include

using namespace std;

void UpdateArray(int array[])

{

for(int i=0;i<=9;i++)

array[i]=array[i]*array[i];

}

int main()

{

int array[10];

for(int i=0;i<=9;i++)

array[i]=i+1;

UpdateArray(array);

for(int i=0;i<=9;i++)

cout<

return 0;

}

Matrix multiplication code in C++ using 2D arrays

#include

#include

using namespace std;

int main()

{

    const int row=2,col=2;

cout<<"Size of Matrices : "<

cout<<"Enter Value For FirstMatrix Matrix:"<

    int firstMatrix[row][col];

    int secondMatrix[row][col];

    int resultantMatrix[row][col], var;

int i,j;

    for( i=0;i

    {

        cout<<"Enter value for row number: "<

        for( j=0;j

        {

            cin>>firstMatrix[i][j];

        }

    }

cout<<"\n\n\nEnter Value For SecondMatrix Matrix:"<

    for( i=0;i

     {

        cout<<"Enter value for row number: "<

        for( j=0;j

        {

            cin>>secondMatrix[i][j];

        }

    }

var=0;

            for( i=0;i

           {

            for( j=0;j

             {

                for(int k=0;k

                  {

                   var=var+(firstMatrix[i][k]*secondMatrix[k][j]);

                   cout<

                    }

                 resultantMatrix[i][j]=var;

                 var=0;

            }

        }

cout<<"\n\n\t\tResultant Matrix:"<

    for( i=0;i

       {

        cout<< endl;

        for( j=0;j

        {

            cout<<"\t\t"<

        }

    }

return 0;

}

Add two matrix in C++ code using 2D arrays

#include
#include

using namespace std;
int main()

{
    const int row=2,col=2;
cout<<"Size of Matrices : "< cout<<"Enter Value For First Matrix:"< int first[row][col], second[row][col];
int i,j;

clrscr();
for( i=0;i

  {
  cout<<"Enter value for row number: "<     for( j=0;j

   {
        cin>>first[i][j];
    }
}
cout<<"\n\n\nEnter Value For Second Matrix:"< for( i=0;i

{
 cout<<"Enter value for row number: "<     for( j=0;j

    {
        cin>>second[i][j];
    }
}
for( i=0;i

   {
    for( j=0;j

   {
        first[i][j]=first[i][j]+second[i][j];
    }
}
cout<<"\n\n\t\tResultant Matrix:"< for( i=0;i

{
    cout<< endl;
    for( j=0;j

    {
        cout<<"\t\t"<     }
}
return 0;
}

Binary search code C++ Program

#include

#include

 using namespace std;

  void bubbleSort(int array[], int size);

  bool binarySearch(int array[], int size,int key);

  int main()

{

      cout<<"Enter 5 numbers randomly : "<

            int array[5]; 

     for(int i=0; i<5 i="" span="">

      {

       cout<<"\t";  cin>>array[i]; 

      }

       bubbleSort(array,5);

    cout<<"\n\t\t\tEnter Key To Search: ";

    int key;

    cin>>key;

int result=binarySearch(array,5,key);

if(result==1)

cout<<"\n\t\t\tKey Found in Array "<

else

cout<<"\n\t\t\tKey NOT Found in Array "<

return 0;

}

void bubbleSort(int array[], int size)

{

      cout<<"  Input array is: "<

      for(int j=0; j

      {

              cout<<"\t\t\tValue at "<

      }

      cout<

      int temp;

     for(int i2=0; i2

   {

     for(int j=0; j

     {

           if(array[j]>array[j+1])

       {

        temp=array[j];

        array[j]=array[j+1];

        array[j+1]=temp;

       }

     }

   }

      cout<<"  Sorted Array is: "<

     for(int i3=0; i3

   {

    cout<<"\t\t\tValue at "<

   }

}

bool binarySearch(int array[],int size, int key)

{

         int start=1, end=size;

         int mid=(start+end)/2;

  while(start<=end&&array[mid]!=key)

   {

        if(array[mid]

        {

          start=mid+1;

      }

     else

         {

          end=mid-1;

          }

       mid=(start+end)/2;

     }

   if(array[mid]==key)

    return true; 

    else

   return false;

   cout<<"\n\n\n";

}