//sum of upper and lower traingular matrix #include #include #include void main() { clrscr(); int **in,i,j,n,sum1=0,sum=0; printf("\n Enter the order of the matrix (nXn):"); scanf("%d",&n); in=(int **)malloc((n+1) *sizeof(int *)); for(i=0;ij) sum+=in[i][j]; if(i