🔹 Program 1

#include <stdio.h>

void test() {
    static int x = 10;
    x++;
    printf("%d\\n", x);
}

int main() {
    test();
    test();
    test();
}

Output:

11
12
13

✅ Why?

• static int x = 10;
• Initialized only once
• Stored in static memory
• Value preserved between function calls

Execution:

• First call → x = 10 → x++ → 11
• Second call → x = 11 → x++ → 12
• Third call → x = 12 → x++ → 13

✔ Value keeps increasing

✔ Not destroyed after function ends

🔹 Program 2

#include <stdio.h>

void test() {
    static int x;
    x = 10;
    x++;
    printf("%d\\n", x);
}

int main() {
    test();
    test();
    test();
}

Output: