One Mark Questions

XII Standard topper 2017

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Drawings by students

  

 

SRM Nightingale's Kalakendra Music concert

  

XI STD DEBUG / OUTPUT

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Question

Debug the following program for the required output

# include<stdio.h>

$include<conio.h>

MAIN()

[

Int n

CLrSCR();

PRINTF(“In Enter the number:\n”;

SCAMF(“%d”,&n)

if(n%2= =0);

printf(“In the given number is even”);

else

printf(The given number is not even”);

getch();

}

WAY  TO  WRITE

1.     Write the given program & set line numbers

2.     Tabulate with headings line no, Error, Correction

3.     Write the error prone line number and nature of error and correct form of statement

Answer To Be In Paper

Example

# include<stdio.h>

$include<conio.h>

MAIN()

[

Int n

CLrSCR();

PRINTF(“In Enter the number:\n”;

SCAMF(“%d”,&n)

if(n%2= =0);

printf(“In the given number is even”);

else

printf(The given number is not even”);

getch();

}

  

Line No	Error	Correction
2	Preprocessor directive should start with #	#include<conio.h>
3	Function should return with value Name  should be as main()	void main()
4	[ should be replaced with {	{
5	All key words are to be written in small letters Every completed line ends with ;	int n;
6	All key words are to be written in small letters	clrscr();
7	Closing bracket is missing PRINTF – unknown function	printf(“\nEnter the number:\n”);
8	SCAMF – unknown function Semicolon missing	scanf(“%d”);
9	If statement should not end with semicolon	If(n%2==0)
10	printf(“In   “In – should be replaced by \n	printf(“\n the Given number is even”);
12	Opening quotation( “) is missing	printf(“The given number is not even”);

**** ************ ************ *************** ******************* *****************

Question Write the output of the following program

Example

#include <stdio.h>

main()

{

int term;

int i;

i=1;

term=1;

while(term<=10)

     {

        printf(“%d \t”,i);

        i=i+term;

        term=term+1;

}

}

Way To Write

Rewrite the program in paper

1.     Analyze step by step

2.     Go in the flow of program

3.     Write whatever the printf command follows as per the rule.

 

Answer to be in the paper

#include <stdio.h>

main()

 

{

int term;

int i;

i=1;

term=1;

while(term<=10)

     {

        printf(“%d \t”,i);

        i=i+term;

        term=term+1;

}

}

Output

1          2          4         7          11        16       22       29       37        46

Explanation  of the program:

1.     Variable term, i are declared and initialized with 1.

2.     Now in memory i=term = 1

3.     So term<=10 is true. While this true status the body of the loop followed within {  } are repeated

o   i value   1 is printed with tab space

o   i value in memory changed to 1+1=2

o   term value in memory changed to 1+1=2

4.      term<=10 is true. While this true status the body of the loop followed within {  } are repeated

o   i value   2 is printed with tab space

o   i value in memory changed to 2+2=4

o   term value in memory changed to 2+1=3

5.     term<=10 is true. While this true status the body of the loop followed within {  } are repeated

o   i value   4 is printed with tab space

o   i value in memory changed to 4+3=7

o   term value in memory changed to 3+1=4

.

.

     In the same way analyze till term<=10 becomes false.

An album - A tribute - To our former President

An  album prepared by our student NIRMALA S of XI B (during 2015-16) as a tribute to  of our former President Dr.A.P.J.Abdul Kalam on the day of his demise