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Programming Courses - Module Promotion - Viva Voce

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What is time complexity?
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What is the

output of the following code?

#include <stdio.h>

typedef struct

{

    int a, b;

} Point;

int main() {

    Point p1 = {10, 20};

    printf("%d %d", p1.a, p1.b);

    return 0;

}

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Which of the following statements about self-referential structures is FALSE?
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Which of the following is an example of a circular self-referential structure?

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What will fgetc() return at the end of a file?
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What will happen if we execute the following code multiple times?

#include <stdio.h>

int main() {

      FILE *file = fopen("output.txt", "w"); 

      if (file == NULL) {

      printf("Error opening file!\n");

      return 1;

      }

      fprintf(file, "Hello, World!"); 

      fclose(file);  // Closes the file

      return 0;

}

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What is the space complexity of finding an element in an unsorted array?
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What is the purpose of fputc()?
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What is the output of the following program?

#include <stdio.h>

#include <stdarg.h>

void print_numbers(int count, ...) {

    va_list args;

    va_start(args, count);

    

    for (int i = 0; i < count; i++) {

        printf("%d ", va_arg(args, int));

    }

    va_end(args);

}

int main() {

    print_numbers(3, 10, 20, 30);

    return 0;

}

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What happens when we open a file in "a+" mode?
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