Don't know how to get into a topic, they wrote a total of three order matrix, but still have questions, please raise a point of great god

CodePudding user response:

Hand into the function, the array note array into function will degenerate into a pointer, so let's hand in the size also

CodePudding user response:

Reference:

 # include 
#include  
using namespace std; 

Void sum (int * a, b, int * int * c) 
{
Int m, n; 
for(n=0; N<3; N++) 
for(m=0; M<3; M++) 
* (c + +)=* (+ +) * (b++); 
} 


Int main () 
{
Int I, j; 
B int a [3], [3], [3], [3], c [3] [3]. 

Cout<& lt;" A is the third order matrix "& lt; & lt;" Please enter A [3] [3] value: "& lt; for(i=0; i<3; I++) 
for(j=0; j<3; J++) 
Cin> A, [I] [j]. 

Cout<& lt;" For the third order matrix B "& lt; & lt;" Please enter the B [3] [3] value: "& lt; for(i=0; i<3; I++) 
for(j=0; j<3; J++) 
Cin> B [I] [j]; 

[0] the sum (a, b [0], c [0]). 

Cout<& lt;" Matrix A [3] [3] + B [3] [3]="& lt; for(i=0; i<3; I++) 
for(j=0; j<3; J++) 
Cout
return 0; 
} 


//A is the third order matrix please enter A [3] [3] value: 
//1 2 3 4 5 6 7 8 9 
Please enter//B for the third order matrix B [3] [3] value: 
//1 2 3 4 5 6 7 8 9 
//matrix A [3] [3] + B [3] [3]=
//2 4 6 
//8 10 12 
//14 16 18 
//please press any key to continue... 

CodePudding user response:

 
#include  
using namespace std; 

//generator matrix 
Int * * creatInt (size_t size_t m, n) 
{
Int a=new int * * * [m].//generated line m 
For (size_t I=0; I & lt; m; + + I) 
{
A [I]=new int [n].//per n int 
} 
return a; 
} 

//initialization matrix 
Void init (int * * a, size_t m, size_t n) 
{
For (size_t I=0; I & lt; m; + + I) 
{
For (size_t j=0; J & lt; n; + + j) 
{
A [I] [j]=rand () 99 + % 1; 
} 
} 

} 

//output matrix 
Void Print (int * * a, size_t m, size_t n) 
{
For (size_t I=0; I & lt; m; + + I) 
{
For (size_t j=0; J & lt; n; + + j) 
{
Cout & lt; } 
Cout & lt; } 

} 


Int main () 
{
Size_t m, n; 
Cin & gt;> M & gt;> n; 

Int A=* * creatInt (m, n); 
Int * * B=creatInt (m, n); 
Int * * C=creatInt (m, n); 

Srand (time (NULL)); 
Init (A, m, n); 
Init (B, m, n); 

For (size_t I=0; I & lt; m; + + I) 
{
For (size_t j=0; J & lt; n; + + j) 
{
C [I] [j] A [I] [j] + B=[I] [j]; 
} 
} 

Cout & lt; <"Matrix A: \ n"; 
Print (A, m, n); 

Cout & lt; <"The matrix B: \ n \ n"; 
Print (B, m, n); 

Cout & lt; <"Matrix C: \ n \ n"; 
Print (C, m, n); 

return 0; 
}