Problem 37

March 9, 2021

3 comments on “Problem 37”


  • rohan

    #include
    int i,j,k;
    void read(int mat1[3][3],int mat2[3][3]);
    void print(int mat1[3][3],int mat2[3][3]);
    void multi(int mat1[3][3],int mat2[3][3]);
    int main()
    {
    int mat1[3][3],mat2[3][3],t[3][3];
    read(mat1,mat2);
    printf(“elements for 1st and 2nd array\n”);
    print(mat1,mat2);
    multi(mat1,mat2);
    return 0;
    }
    void read(int mat1[3][3],int mat2[3][3])
    {
    printf(“enter elements of 1st matrix\n”);
    for(i=0;i<3;i++)
    {
    for(j=0;j<3;j++)
    scanf("%d",&mat1[i][j]);
    }
    printf("enter elements of 2nd matrix\n");
    for(i=0;i<3;i++)
    {
    for(j=0;j<3;j++)
    scanf("%d",&mat2[i][j]);
    }
    }
    void print(int x[3][3],int y[3][3])
    {

    for(i=0;i<3;i++)
    {
    for(j=0;j<3;j++)
    printf("%d \t",x[i][j]);
    printf("\t");
    for(j=0;j<3;j++)
    printf("%d \t",y[i][j]);
    printf("\n");
    }
    printf("\n");
    }
    void multi(int mat1[3][3],int mat2[3][3])
    {
    int temp;
    for(i=0;i<3;i++)
    {
    for(j=0;j<3;j++)
    {
    for(int k=0;k<3;k++)
    temp=temp+((mat1[i][k])*(mat2[k][j]));
    printf("%d\t",temp);
    temp=0;
    }
    printf("\n");
    }
    }


  • Oindry

    import java.util.Scanner;
    public class PREP_p_37 {
    public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    int row = sc.nextInt();
    int col = sc.nextInt();
    int a[][]= new int[row][col];
    int b[][]= new int[row][col];
    int c[][]= new int[row][col];
    for(int i =0;i<row;i++)
    {
    for(int j =0;j<col;j++)
    {
    a[i][j] = sc.nextInt();
    }
    }
    for(int i =0;i<row;i++)
    {
    for(int j =0;j<col;j++)
    {
    b[i][j] = sc.nextInt();
    }
    }
    int i=0,j=0,k=0;
    for(i=0;i<row;i++)
    {
    for(j=0;j<col;j++)
    {
    c[i][j]=0;
    for(k=0;k<col;k++)
    {
    c[i][j]=c[i][j]+(a[i][k]*b[k][j]);
    }
    System.out.print(c[i][j]+" ");
    }
    System.out.println();
    }
    }
    }
    INPUT:-
    3 3
    1
    1
    1
    2
    2
    2
    3
    3
    3
    1
    1
    1
    2
    2
    2
    3
    3
    3
    OUTPUT:-
    6 6 6
    12 12 12
    18 18 18


  • Oindry

    import java.util.Scanner;
    public class PREP_p_37 {
    public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    int row = sc.nextInt();
    int col = sc.nextInt();
    int a[][]= new int[row][col];
    int b[][]= new int[row][col];
    int c[][]= new int[row][col];
    for(int i =0;i<row;i++)
    {
    for(int j =0;j<col;j++)
    {
    a[i][j] = sc.nextInt();
    }
    }
    for(int i =0;i<row;i++)
    {
    for(int j =0;j<col;j++)
    {
    b[i][j] = sc.nextInt();
    }
    }
    int i=0,j=0,k=0;
    for(i=0;i<row;i++)
    {
    for(j=0;j<col;j++)
    {
    c[i][j]=0;
    for(k=0;k<col;k++)
    {
    c[i][j]=c[i][j]+(a[i][k]*b[k][j]);
    }
    System.out.print(c[i][j]+" ");
    }
    System.out.println();
    }
    }
    }