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included dynamic array in c #594

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included dynamic array in c #594

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27 changes: 27 additions & 0 deletions dynamic_array.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
#include <stdio.h>
#include <stdlib.h>
int main()
{
int n, i, *ptr, sum = 0;
printf("Enter number of elements: ");
scanf("%d", &n);
ptr = (int*) malloc(n * sizeof(int));

// if memory cannot be allocated
if(ptr == NULL)
{
printf("Error! memory not allocated.");
exit(0);
}
printf("Enter elements: ");
for(i = 0; i < n; ++i)
{
scanf("%d", ptr + i);
sum += *(ptr + i);
}
printf("Sum = %d", sum);

// deallocating the memory
free(ptr);
return 0;
}