Matrices , Binary c++ program

Simple Binary search code example in cpp

#include

#include  

   int main()

{

      cout<<"enter 5 numbers randomly : "<

      size can be change by replacing 5

      int array[5]; //declaring array

      for(int i=0; i<5 i="" span="">

      {

       cout<<"\t";  cin>>array[i];  

       initializing array

      }

     passing arrary for sorting

       bubblesort(array,5);

array has sorted at this point

    cout<<"\n\t\t\tenter key to search: ";

    int key;

    cin>>key;

passing array, size and key to search 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;

}

c++ program to add two matrices

# include

#include 

int main()

{

using const int for array size

    const int row=2,col=2;

if not use const error found



cout<<"size of matrices : "<
cout<<"enter value for first matrix:"<


int first[row][col], second[row][col];



int i,j;

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];

    }

}
resultant matrix
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;
}

Matrices Multiplication in C++ Code Tutorial

#include

#include 

int main()

{

    const int row=2,col=2;

if not use const error found

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;

resultantmatrixant matrix

        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;

}