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C Programming - Declarations and Initializations - Discussion

Discussion Forum : Declarations and Initializations - Find Output of Program (Q.No. 12)
Declarations and Initializations
12.
What will be the output of the program? 
#include<stdio.h>
int main()
{
    int X=40;
    {
        int X=20;
        printf("%d ", X);
    }
    printf("%d\n", X);
    return 0;
}
40 40
20 40
20
Error
Answer: Option
Explanation:
In case of a conflict between a local variable and global variable, the local variable gets priority.
Discussion:
22 comments Page 3 of 3.
Suryakanta said:   7 years ago
C programming does not support the blocks so it will not return the error.
Adipto said:   6 years ago
Initially the value of x is 40, then it is changed to 20. How come x again gets the value 40? Please explain it in detail.
(1)
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