nivedita prasad
7 New Member
hi
i want a program for
Inward-spiral order matrix.
i.e you have to traverse the matrix in clockwise manner and display the elements,
for eg.
1 2 5 4
8 9 7 1
9 7 6 3
2 3 5 8
output should be 1, 2, 5, 4, 1, 3, 8, 5, 3, 2, 9, 8, 9, 7, 6,7
Regards
Nivedita Prasad
Dec 29 '09 #1
3 5525 
newb16 687 Contributor
#include <stdio.h>
struct Q{int S,i,j,*A;Q(int o,int*a):S(o),i (0),j(0),A(a){} ;
Q&operator++(){ printf("%d, ",A[i*S+j]);int r(i),p(j);
j>=i-1&&j<S-1-i&&++p;j>=S-i&&j<=i&&--p;j>=S-1-i&&i<j&&++r;j <S-i&&j<i-1&&--r;i=r;j=p;retur n *this;}
};
int main(){
#define size 4
int stuff[size*size]=
{1, 2, 5, 4,
8, 9, 7, 1,
9, 7, 6, 3,
2, 3, 5, 8};
Q q(size,stuff);
for(int i=0;i<size*size ;i++)++q;
}
Dec 29 '09 #2
reply
weaknessforcats 9,208 Recognized Expert Moderator Expert
This solution a) should not have been provided as complete code solutions are not to be provided and b) the results of this one is indeterminate due to variables being modified more than once within the same sequence point.
Dec 29 '09 #3
reply
newb16 687 Contributor
&& is the sequence point itself. And there is only one '--' or '++' between semicolons.
Dec 29 '09 #4
reply
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