The original program BBS is a classmate of matrix printing problems, I wrote a enhanced version, will only to solve with variable length arrays, would like to know how to solve if using pointer

 # include & lt; stdio.h> 

Int main () 
{
Unsigned int a=0, b=0; 
Printf (" Introduzca 2 numero (1 y ~, entre non-numeric exit) : "); 
While (the scanf (" % d % d ", & amp; A, & amp; B)) 
{
Int c [a] [b] [2]; Do not use variable-length array//here, but using a pointer, the back of the memory for how to deal with 
for(int i=0; ifor(int j=0; J{
C [I] [j] [0]=I; 
C [I] [j] [1]=j; 
} 
for(int i=0; ifor(int j=0; JPrintf (" [% d % d], c [I] [j] [0], c [I] [j] [1]). 
Printf (" Introduzca 2 numero (1 y ~, entre non-numeric exit) : "); 
} 
return 0; 
} 

Why I use other function call won't get the right running

 # include & lt; stdio.h> 
Void primatrix (int pa, int, pb, PC/pa int [pb] [2]). 
Aa, int ab void assmatrix (int, int ac (aa) [ab] [2]). 
Int main () 
{
Unsigned int a=0, b=0; 
Printf (" Introduzca 2 numero (1 y ~, entre non-numeric exit) : "); 
While (the scanf (" % d % d ", & amp; A, & amp; B)) 
{
Int c [a] [b] [2]; 

Assmatrix (a, b, c [a] [b] [2]). 
Primatrix (a, b, c [a] [b] [2]). 
Printf (" Introduzca 2 numero (1 y ~, entre non-numeric exit) : "); 
} 
return 0; 
} 
Void primatrix (int pa, int, pb, PC/pa int [pb] [2]) 
{
for(int i=0; ifor(int j=0; JPrintf (" [] % d % d ", PC [I] [j] [0], PC [I] [j] [1]). 
} 
Aa, int ab void assmatrix (int, int ac (aa) [ab] [2]) 
{
for(int i=0; ifor(int j=0; J{
Ac [I] [j] [0]=I; 
Ac [I] [j] [1]=j; 
} 
}

CodePudding user response:

The first question about the call is not successful, his thought about the possible problems, after the test has been solved,

 # include & lt; stdio.h> 
Void primatrix (int pa, int, pb, PC/pa int [pb] [2]). 
Aa, int ab void assmatrix (int, int ac (aa) [ab] [2]). 
Int main () 
{
Unsigned int a=0, b=0; 
Printf (" Introduzca 2 numero (1 y ~, entre non-numeric exit) : "); 
While (the scanf (" % d % d ", & amp; A, & amp; B)) 
{
Int c [a] [b] [2]; 
Assmatrix (a, b, c);//before parameters transfer form is wrong, when used in declaration and is not the same as 
Primatrix (a, b, c);//same as above 
Printf (" Introduzca 2 numero (1 y ~, entre non-numeric exit) : "); 
} 
return 0; 
}