New programming for help-CodePudding

Your bosses and see what went wrong
#include
/* fun function () function will be the first k lines two-dimensional array elements with 0
element exchange in turn1 2 3
4 5 6
7 8 9
When the value of 2 k, transform for
7 8 9
4 5 6
1 2 3
*/
Void fun (int [s] [3], int k) {
Int temp, j=2;
int i;
for(i=0; i{
Temp=s [I] [2];
S [I] [2]=s [j] [2];
S [j] [2]=temp;
j--;
}
}

Int main () {
int k;
Int n=3, m=3;
The scanf (" % d ", & amp; K);
Int a, [n] [m].

for(int i=0; ifor(int j=0; jThe scanf (" % d ", & amp; A [I] [j]);

for(int i=0; ifor(int j=0; jPrintf (" % d ", a [I] [j]);

Fun (a, k);
return 0;
}

CodePudding user response:

Your compiler didn't give you the wrong? Array you define with constant, unless you are using dynamic array, there is your fun function have to think about it

CodePudding user response:

Haven't you will learn about dynamic array

CodePudding user response:

Fun function should be to traverse the number of columns, the first k lines will in turn with the element 0, you see the columns are fixed, you wrote that how to change, the other array defining best constants, you can define his older, and then use part of it, you this is dev that a few old, mostly to vs directly killed

CodePudding user response:

 # include 
/* fun function () function will be the first k lines two-dimensional array elements with 0 
 element exchange in turn1 2 3 
4 5 6 
7 8 9 
When the value of 2 k, transform for 
7 8 9 
4 5 6 
1 2 3 
*/
Void fun (int * * s, int k) {
int temp; 
int i; 
For (I=0; I & lt; 3; + + I) 
{
Temp=s [k] [I]; 
S [k] [I]=s [0] [I]; 
S [0] [I]=temp; 
} 
} 

Int main () 
{
int k; 
Int n=3, m=3; 
The scanf (" % d ", & amp; K); 
Int a=new int * * * [n]. 
for (int i=0; I & lt; n; + + I) 
{
A [I]=new int [m]. 
} 

for (int i=0; iFor (int j=0; jThe scanf (" % d ", & amp; A [I] [j]); 


Fun (a, k); 

for (int i=0; I & lt; n; I++) 
{
For (int j=0; J & lt; m; J++) 
{
Printf (" % d \ t ", a [I] [j]); 
} 
printf("\n"); 
} 
for (int i=0; I & lt; n; + + I) 
{
The delete [] a [I]; 
} 
The delete [] a; 
return 0; 
}

VS2015 debugging results

Please refer to the "dynamic allocation multidimensional arrays in c + +"
"To the use of two dimensional array in c + +"
"C + + 2 d array
"Wish I could help you!

CodePudding user response:

I hope it can help you: https://blog.csdn.net/it_xiangqiang/category_10581430.html
I hope it can help you: https://blog.csdn.net/it_xiangqiang/category_10768339.html