**Program:**

**#include<stdio.h>**

**#include<conio.h>**

**void main()**

**{**

**int a[10][10],b[10][10],c[10][10],n1,n2,m1,m2,i,j,k;**

**clrscr();**

**printf("Enter Matrix Length A (M1 x N1):");**

**scanf("%d%d",&m1,&n1);**

**printf("Enter Matrix A:");**

**for(i=0; i<m1; i++){**

**for(j=0; j<n1; j++){**

**scanf("%d"<&a[i][j]);**

**}**

**}**

**printf("Enter Matrix Length B (M2 x N2):");**

**scanf("%d%d",&m2,&n2);**

**printf("Enter Matrix B:");**

**for(i=0; i<m2; i++){**

**for(j=0; j<n2; j++){**

**scanf("%d"<&a[i][j]);**

**}**

**}**

**if(n1!=m2){**

**printf("Multiplication not valid!");**

**getch();**

**exit (0);**

**}**

**for(i=0; i<m2; i++){**

**for(j=0; j<n1; j++){**

**c[i][j]=0;**

**for(k=0; k<m2; k++){**

**c[i][j]=c[i][j]+a[i][k]*b[k][i];**

**}**

**}**

**}**

**printf("The Result is:");**

**for(i=0; i<m2; i++){**

**printf("\n");**

**for(j=0; j<n1; j++){**

**printf("%d\t",c[i][j]);**

**}**

**}**

**getch();**

**}**

**Output:**

**Enter Matrix Length A (M1 x N1):2 3**

**Enter Matrix A:**

**2 3**

**2 1**

**0 1**

**Enter Matrix Length B (M2 x N2):2 2**

**Enter Matrix B:**

**2 1**

**1 2**

**Multiplication not Valid!**

**Enter Matrix Length A (M1 x N1):2 2**

**Enter Matrix A:**

**2 3**

**2 1**

**Enter Matrix Length B (M2 x N2):2 2**

**Enter Matrix B:**

**3 2**

**2 1**

**The Result is:**

**12 7**

**8 5**

**Thanks for wathing...**

**Comment it...**

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