Pointer changing variable in C.

 

01  #include<stdio.h>
02
03 int main()
04 {
05 int x=50; //integer variable
06
07 int *ptr; //integer pointer
08
09 printf("Value of X : %d n",x);
10
11 ptr= &x; // ptr points to 'x'
12
13 *ptr=100; // x=100
14
15 printf("Value of X : %d n",x);
16
17 return 0;
18 }
 
 OUTPUT :

Value of X : 50
Value of X : 100

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