11th & 12th CS 2013 (Outside Delhi) Common Assignment

1(a)	WHAT IS THE BENEFIT OF USING DEFAULT PRAMETER/ARGUMENT IN A FUNCTION? GIVA A  SUITABLE  EXAMPLE TO ILLUSTRATE IT USING A C++ CODE.	2
ANS	Default parameter allows programmer to assign a value to the formal parameter , which gets substituted  in absence of corresponding actual parameter . Void calc(int  A=900) {   Cout<<100*A<<”\n”; } Void main() { Calc(100); Calc(); }
(b)	OBSERVE THE FOLLOWING C++ CODE AND WRITE THE NAME()S OF THE HEADER   FILES(S), WHICH WILL ESSENTIALLY REQUIRED TO RUN IT IN A C++ COMPILER: Void  main() {  Float Area,Side; Cin>>Area; Side=sqrt(Area); Cout<<”ONE  SIDE  OF THE SQUARE IS :”<<Side<<endl; }	1
ANS	iostream.h/iomanip.h/fstream.h/math.h/stdlib.h
(c)	OBSERVE THE FOLLOWING C++ CODE CAREFULLY AND REWRITE THE SAME AFTER REMOVINGALL THE SYNTAX ERROR(S) PRESENT IN THE CODE . ENSURE THAT YOU  UNDERLINE EACH CORRECTION IN THE CODE. IMPORTANT  NOTE : -          ALL THE DESIRED HEADER FILES ARE ALREADY INCLUDED , WHICH ARE REQUIRED TO RUN THE CODE -          CORRECTION SHOULD NOT CHANGE THE LOGIC OF THE PROGRAM #define Change(A,B)      2*A+B; void main() { Float X,Y,F; Cin>>X>>Y; F=Change[X.Y]; Cout<<”Result:”<<F<endline; }
ANS	#define Change(A,B)      2*A+B; Void main() { float X,Y,F;                                                     // F - uppercase Cin>>X>>Y; F=Change(X.Y);                                            //wrong brase Cout<<”Result:”<<F<<endl;                   //endline should be – endl                                                                    // single < with cout }
(f)	BASED ON THE FOLLOWING C++ PROGRAM  ,FIND OUT THE EXPECTED CORRECT OUTPUT(S) FROM THE OPTIONS (I) TO (IV) . ALSO FIND OUT THE MAXIMUMAND THE MINIMUMTHAT CAN BE ASSIGNEDTO THE VARIABLE GUESS USED IN THE CODE AT THE TIME WHEN VALUE OF TURN IS 3. void main() {    Char result [] [10] ={“GOLD” , “SILVER” , “BRONZE”};     Int Getit=9, Guess;     for (int Turn = 1;Turn<4;Turn++)      {              Guess=random(Turn);            cout<< Getit-Guess<< Resut [Guess]<<”*”;       } } (i)                   9Gold*9Gold*8Silver* (ii)                9Gold*7Bronze*8Gold* (iii)               9Gold*8Silver*9Gold* (iv)              9Gold*8Silver*8Gold*
ANS	EXPECTED CORRECT OUTPUTS ARE OPTIONS (I) AND (III) WHEN TURN = 3: MINIMUM VALUE OF GUESS  = 0 MAXIMUM VALUE OF GUESS  = 2