Arrays : two dimension (2-D) cont. Setting By : A. L. Waleed Rasheed Thirteen Lecture IN C LANGAUGE CONDITIONS main diagonal secondary diagonal i j main diagonal i j Triangle under main diagonal i j Triangle above main
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01
Arrays : two dimension (2-D) cont. Setting By : A. L. Waleed Rasheed Thirteen Lecture IN C++ LANGAUGE<br>
02
CONDITIONS main diagonal secondary diagonal i == j main diagonal
i > j Triangle under main diagonal
i < j Triangle above main diagonal القطر الرئيسي القطر الثانوي i+j == n-1 secondary diagonal
i+j > n-1 Triangle under secondary diagonal
i+j < n-1 Triangle above secondary diagonal القطر الرئيسي القطر الثانوي A [ n , n ]<br>
03
s=0;
for ( i = 0; i < 5; i++)
for ( j = 0; j < 5; j++)
if (i==j) s+=a[i][j];
cout<<“sum = "<<s; Q / write a program section with array 2-D a[5,5], to find sum No. in main diagonal?<br>
04
s1=s2=0;
for ( i = 0; i < 5; i++)
for ( j = 0; j < 5; j++)
{
if (i>j && a[i][j]>=0) s1+=a[i][j];
if ( i+j<4 && a[i][j]<0) s2+=a[i][j];
}
cout<<“Pos.No.= "<<s1;
cout<<“Neg.No.= "<<s2; Q / write a program section with array 2-D a[5,5], to calculate the sum of positive No. in Triangle under main diagonal and sum of negative No. in Triangle above secondary diagonal?<br>
05
for (i=0;i<5;i++)
for (j=0;j<5;j++)
if (i==j)
{ t=a[i][j];
a[i][j]=a[i][5-j-1];
a[i][5-j-1]=t; } Q / write program section to switch the main diagonal place the secondary diagonal in the matrix A[5,5]?<br>
06
#include<iostream.h>
void main()
{
int a[2][3]={{1,2,3},{4,5,6}};
int b[3][4]={{1,2,3,4},{4,5,6,7},{7,8,9,10}};
int c[2][4];
int i,j,k;
for(i=0;i<2;i++)
for(j=0;j<4;j++)
c[i][j]=0; Q/W.P. to calculate multiply array a[2][3]*b[3][4] and print result? a[2][3] b[3][4] c[2][4] * =<br>
