C language, design a dynamic array, an array of input by the user the number of array elements, and a random assignment each element two integers, finally from small to large output the array,

CodePudding user response:

 # include & lt; Stdio. H> 
#include  


Void bubble_sort (int * arr, int len); 
Int main () 
{

Int n, * arr, I; 

The scanf (" % d ", & amp; N); 

Arr=(int *) malloc (sizeof (int) * (n)); 
if (! Arr) 
return -1; 

For (I=0; i The scanf (" % d ", & amp; Arr [I]); 

Bubble_sort (arr, n); 

For (I=0; i Printf (" % d ", arr [I]); 
Putchar (10); 

/* 
For (I=1; i Printf (" % d ", arr [I]); 
Putchar (10); 
For (I=2; i Printf (" % d ", arr [I]); 
Putchar (10); 
*/

return 0; 
} 

Void bubble_sort (int * arr, int len) 
{
int i, j; 
Int TMP. 

For (I=0; i For (j=0; J & lt; Len - 1; J++) {
If (arr [j] & gt; Arr [m + 1]) {
TMP=arr [j]; 
Arr=arr [j] [j + 1); 
Arr=[m + 1] TMP; 
} 
} 
} 
} 

For your reference ~

CodePudding user response:

Plan a, the use of variable-length array, need support for C99 compiler

 
# include "stdio.h" 
# include "stdlib. H" 
# include "time. H" 
Int main (void) 
{
Int num=0, I=0; 
Printf (" input array length: "); 
The scanf (" % d ", & amp; Num); 
Int arr (num); 
Srand (time (0)); 
For (I=0; i{
Arr [I]=rand () % 100; 
Printf (" % d ", arr [I]); 
} 
return 0; 
} 

Scheme 2, application memory, C90 can also

 
# include "stdio.h" 
# include "stdlib. H" 
# include "time. H" 
Int main (void) 
{
Int num=0, I=0; 
Printf (" input array length: "); 
The scanf (" % d ", & amp; Num); 
Int * arr=calloc (num, sizeof (int));. 
Srand (time (0)); 
For (I=0; i{
Arr [I]=rand () % 100; 
Printf (" % d ", arr [I]); 
} 
return 0; 
}