Input and Output

Find the output of the following program

1)  #include<stdio.h>

int main()

{

 printf("ss coading") ;

 return 0;

}

2)  #include<stdio.h>

void main()
{

    printf("ss" "coading") ;

}

3)  what is the difference between question no 1 and 2

4)   #include<stdio.h>

int main()

{

 printf("Indians\b is great\n");

 printf("ss \rcoading\n");
 return 0;

}

(5)  #include<stdio.h>

int main()

{

 int s=10;

 printf("s=%d\t",s);

 printf("s=%o\t",s);    

 printf("s=%x",s);
 return 0;

}

6)  #include<stdio.h>

int main()

{

 int s=10;

 printf("s=%d\t",s);

 printf("%c",s);       

 printf("s=%x",s);
 return 0;

}

7)  #include<stdio.h>

int main()

{

 int a=200;

 unsigned int 200;

 printf("a=%d,b=%u",a,b);
 return 0;

}

8)  #include<stdio.h>

int main()

{

 char ch;

 printf("enter a character");

 scanf("%c",&ch);

 printf("%d",ch);
 return 0;

}

9)  #include<stdio.h>

int main()

{

 char ch='c ';

 printf("%d",ch);
 return 0;

}

10) #include<stdio.h>

int main()

{

 float b=122.1235;

 printf("%f\n",b);

 printf("%.3f\n",b);

 printf("%.2f\n",b);
 return 0;

}

11)  #include<stdio.h>

   int main()

   {

    int a=1.5,b=2,c=0x10,d=010;

    printf("a=%d\tb=%d\tc=%d\td=%d",a,b,c,d);
    return 0;

   }

12) #include<stdio.h>

int main()

{

 int a=678,b=3456,c=12345;

 printf("%3d, %4d, %5d\n",a,b,c);

 printf("%5d, %5d, %5d\n",a,b,c);
 return 0;

}

13) #include<stdio.h>

int main()

{

 int a=98;

 char ch='c';

 printf("%c  %d\n",a,ch);
 return 0;

}

14)  #include<stdio.h>

int main()

{

 float a1,b1,a2,b2;

 a1=2; b1=6.8; a2=4.2; b2=3.57;

 printf("%3.1f,%4.2f\n",a1,b1);

 printf("%5.1f,%6.2f\n",a2,b2);
 return 0;

}

(15)  #include<stdio.h>

 int main()

 {

  printf("%12s\n","practice");  

  printf("%6s\n","sscoading");  

  printf("%.2s\n","sscoad");  

  printf("%5.4s\n","daily");
  return 0;

 }

ANSWER

1. ss coading

2. sscoading
    hint: you will get a warning.

3. main function having void return type(in question no 2) i.e it doesn’t return any value to OS whereas int return type returns an integer value to OS.

4. Indian is great

    coading

5. s=10     s=12       s=a

6. s=10    

    s=a

    hints: ASCII for newline(‘\n’) is 10

7. compilation error

    hints: b undeclared

8. It will print ASCII value for the entered character. E.g a=97, b=98 etc

9. Error

    hints : Warning:multi-character character constant

10. 122.123497

            122.123

            122.12

      11. a=1           b=2        c=16       d=8

            hints: 0x  for hexadecimal

                       0 for octal

      12. 678, 3456, 12345

        678,  3456, 12345

      hints: for second-line it will take two extra space

13. b  99

14. 2.0,6.80

        4.2, 3.57

15.     practice

      sscoading

      ss

       dail