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  • Question
  • What will be the output of the program?
    #include<stdio.h>
    
    int main()
    {
        printf("%%%%\n");
        return 0;
    }
    


  • Options
  • A. %%%%%
  • B. %%
  • C. No output
  • D. Error

  • Correct Answer
  • %% 


  • Input / Output problems


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    • 1. What will be the output of the program?
      #include<stdio.h>
      char *str = "char *str = %c%s%c; main(){ printf(str, 34, str, 34);}";
      
      int main()
      {
          printf(str, 34, str, 34);
          return 0;
      }
      

    • Options
    • A. char *str = "char *str = %c%s%c; main(){ printf(str, 34, str, 34);}"; main(){ printf(str, 34, str, 34);}
    • B. char *str = %c%s%c; main(){ printf(str, 34, str, 34);}
    • C. No output
    • D. Error in program
    • Discuss
    • 2. If the file 'source.txt' contains a line "Be my friend" which of the following will be the output of below program?
      #include<stdio.h>
      
      int main()
      {
          FILE *fs, *ft;
          char c[10];
          fs = fopen("source.txt", "r");
          c[0] = getc(fs);
          fseek(fs, 0, SEEK_END);
          fseek(fs, -3L, SEEK_CUR);
          fgets(c, 5, fs);
          puts(c);
          return 0;
      }
      

    • Options
    • A. friend
    • B. frien
    • C. end
    • D. Error in fseek();
    • Discuss
    • 3. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          char *p;
          p="%d\n";
          p++;
          p++;
          printf(p-2, 23);
          return 0;
      }
      

    • Options
    • A. 21
    • B. 23
    • C. Error
    • D. No output
    • Discuss
    • 4. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          printf("%c\n", ~('C'*-1));
          return 0;
      }
      

    • Options
    • A. A
    • B. B
    • C. C
    • D. D
    • Discuss
    • 5. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          FILE *fp;
          unsigned char ch;
           /* file 'abc.c' contains "This is CuriousTab " */
          fp=fopen("abc.c", "r");
          if(fp == NULL)
          {
              printf("Unable to open file");
              exit(1);
          }
          while((ch=getc(fp)) != EOF)
              printf("%c", ch);
      
          fclose(fp);
          printf("\n", ch);
          return 0;
      }
      

    • Options
    • A. This is CuriousTab
    • B. This is
    • C. Infinite loop
    • D. Error
    • Discuss
    • 6. Assuming, integer is 2 byte, What will be the output of the program?
      #include;
      
      int main()
      {
          printf("%x\n", -1>>1);
          return 0;
      }
      

    • Options
    • A. ffff
    • B. 0fff
    • C. 0000
    • D. fff0
    • Discuss
    • 7. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          unsigned int res;
          res = (64 >>(2+1-2)) & (~(1<<2));
          printf("%d\n", res);
          return 0;
      }
      

    • Options
    • A. 32
    • B. 64
    • C. 0
    • D. 128
    • Discuss
    • 8. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          char c=48;
          int i, mask=01;
          for(i=1; i<=5; i++)
          {
              printf("%c", c|mask);
              mask = mask<<1;
          }
          return 0;
      }
      

    • Options
    • A. 12400
    • B. 12480
    • C. 12500
    • D. 12556
    • Discuss
    • 9. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          int i=4, j=8;
          printf("%d, %d, %d\n", i|j&j|i, i|j&&j|i, i^j);
          return 0;
      }
      

    • Options
    • A. 4, 8, 0
    • B. 1, 2, 1
    • C. 12, 1, 12
    • D. 0, 0, 0
    • Discuss
    • 10. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          int i=32, j=0x20, k, l, m;
          k=i|j;
          l=i&j;
          m=k^l;
          printf("%d, %d, %d, %d, %d\n", i, j, k, l, m);
          return 0;
      }
      

    • Options
    • A. 0, 0, 0, 0, 0
    • B. 0, 32, 32, 32, 32
    • C. 32, 32, 32, 32, 0
    • D. 32, 32, 32, 32, 32
    • Discuss


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