CSE GTU

20. Write a program to find out sum of first and last digit of a given number. #include<stdio.h> #include<conio.h> int main() { int num,fd,ld,sum; printf("\nenter number : "); scanf("%d",&num); ld=num%10; while(num!=0) { if(num == ld) { fd=0; break; } else { fd=num%10; num=num/10; } } sum=fd+ld; printf("\nSum of first and last digit of given number is %d",sum); getch(); return 0; } sample output Previous Program Next Program

19. Write a program to generate first n number of Fibonacci series. #include<stdio.h> #include<conio.h> int main() { int n,a,b,c,i; a=0; b=1; printf("\nEnter value of n : "); scanf("%d",&n); printf("\nFibonacci series is\n"); printf("\n%d\t%d",a,b); for(i=1;i<=n-2;i++) { c=a+b; a=b; b=c; printf("\t%d",b); } getch(); return 0; } Sample output Previous Program Next Program

18. Write a program to reverse a number. #include<stdio.h> #include<conio.h> int main() { int num,rev=0,i,j; printf("\nEnter number : "); scanf("%d",&num); while(num!=0) { i=num%10; rev=rev*10+i; num/=10; } printf("\nReverse is %d",rev); getch(); return 0; } Sample output Previous Program Next Program

17. Write a C program to find factorial of a given number. #include<stdio.h> #include<conio.h> int main() { int fact=1,num,i; printf("\nenter number : "); scanf("%d",&; for(i=1;i<=num;i++) { fact=fact*i; } printf("\nFactorial of %d is %d",num,fact); getch(); return 0; } Sample output Previous Program Next Program

16. Write a C program to input an integer number and check the last digit of number is even or odd. #include<stdio.h> #include<conio.h> int main() { int num; printf("\nEnter any number : "); scanf("%d",&num); if(num%2==0) printf("\nentered number is even"); else printf("\nEntered number is odd"); getch(); return 0; } Sample output Previous Program Next Program

15. Write a C program to find out the Maximum and Minimum number from given 10 numbers. #include<stdio.h> #include<conio.h> int main() { int a,b,i,n; int max,min; printf("Enter number[1] : "); scanf("%d",&a); max=a;min=a; for(i=1;i<10;i++) { printf("\nEnter number[%d] : ",i+1); scanf("%d",&b); if(b>max) max=b; if(b<min) min=b; } printf("\nmaximum is %d",max); printf("\nMinimum is %d",min); getch(); return 0; } Sample output Previous Program Next Program

14. Write a C program to read no 1 to 7 and print relatively day Sunday to Saturday. #include<stdio.h> #include<conio.h> int main() { int day; printf("\nEnter day number : "); scanf("%d",&day); printf("\n"); switch(day) { case 1: printf("Sunday"); break; case 2: printf("Monday"); break; case 3: printf("Tuesday"); break; case 4: printf("Wednesday"); break; case 5: printf("Thursday"); break; case 6: printf("Friday"); break; case 7: printf("Saturday"); break; default: printf("Enter correct day number"); } getch(); return 0; } Sample output Previous Program Next Program

13. Write a c program to prepare pay slip using following data. Da = 10% of basic, Hra = 7.50% of basic, Ma = 300, Pf = 12.50% of basic, Gross = basic + Da + Hra + Ma, Nt = Gross – Pf. #include<stdio.h> #include<conio.h> int main() { int Ma=300,basic; float Da,Hra,Pf,Gross,Nt; printf("\nEnter your basic salary : "); scanf("%d",&basic); Da=0.1*basic; Hra=0.075*basic; Pf=0.125*basic; Gross = basic + Da + Hra + Ma; Nt = Gross - Pf; printf("\nYour Pay slip is ready.. "); printf("\n\nDa = %-10.2f Hra = %-10.2f",Da,Hra); printf("\n\nPf = %-10.2f Ma = %d",Pf,Ma); printf("\n\nGross Salary is %-10.2f\n\nNet salary is %-10.2f",Gross,Nt); getch(); return 0; } Sample output Previous Program Next Program

12. Write a program to read marks from keyboard and your program should display equivalent grade according to following table(if else ladder) Marks Grade 100 - 80 Distinction 79 - 60 First Class 59 - 40 Second Class < 40 Fail. #include<stdio.h> #include<conio.h> int main() { int m; printf("\nEnter your marks : "); scanf("%d",&m); if(m>=80&& m<=100) printf("\nDistinction"); else if(m<=79 && m>=60) printf("\nFirst Class"); else if(m<=59 && m>=40) printf("\nSecond class"); else if(m<40) printf("\nFail"); else printf("\nEnter correct marks"); getch(); return 0; } Sample output Previous Program Next Program

11. Write a C program to check whether the entered character is capital, small letter, digit or any special character. #include<stdio.h> #include<conio.h> int main() { char ch; printf("\nPress any key : "); ch=getchar(); if(ch>='A' && ch<='Z') printf("\nentered character is capital letter"); else if(ch>='a'&& ch<='z') printf("\nEntered character is small letter"); else if(ch>='0'&& ch<='9') printf("\nEntered character is digit"); else printf("\nEntered character is special character"); getch(); return 0; } Sample output Previous Program Next Program

10. Write a program to read three numbers from keyboard and find out maximum out of these three. (nested if else). #include<stdio.h> #include<conio.h> int main() { int a,b,c,max=0; printf("\t\t\tfinding maximum out of three numbers\n\n"); printf("\nEnter three numbers a,b and c : "); scanf("%d%d%d",&a,&b,&c); if(a>b) { if(a>c) max=a; else max=c; } else { if(b>c) max=b; else max=c; } printf("\nMaximum out of three number is %d",max); getch(); return 0; } Sample output Previous Program Next Program

9. Write a program to read marks of a student from keyboard whether the student is pass or fail. #include<stdio.h> #include<conio.h> int main() { int marks; printf("\nEnter your marks out of 100 : "); scanf("%d",&marks); if(marks>=33) printf("\nCongratulations! you passed the exam"); else printf("\nSorry! you failed, keep trying"); getch(); return 0; } Sample output Previous Program Next Program

8. Write a C program to find that the accepted number is Negative, or Positive or Zero. #include<stdio.h> #include<conio.h> int main() { int num; printf("\nEnter any number : "); scanf("%d",&num); if(num==0) printf("\nyou entered Zero"); else if(num>0) printf("\nEntered number is Positive"); else if(num<0) printf("\nEntered number is Negative"); else printf("\n Enter valid number"); getch(); return 0; } Sample output Previous Program Next Program

7. Write a C program to find out distance travelled by the equation d = ut + 0.5at^2. #include>stdio.h< #include>conio.h< int main() { float u,t,a,d; printf("\nEnter initial velocity u : "); scanf("%f",&u); printf("\nEnter time t : "); scanf("%f",&t); printf("\nEnter Acceleration a : "); scanf("%f",&a); d = u*t + 0.5*a*t*t; printf("\n\nDistance traveled by object : %f",d); getch(); return 0; } Sample output Previous Program Next Program

6. Write a program to compute Fahrenheit from centigrade (f=1.8*c +32). #include<stdio.h> #include<conio.h> int main() { float cel,fet; printf("\nenter temperature in centigrades\b : "); scanf("%f",&cel); fet = 1.8*cel + 32; printf("\ntemperature in Fahrenheit : %7.2f",fet); getch(); return 0; } Sample output Previous Program Next Program

5. Write a C program to enter a distance in to kilometer and convert it in to meter, feet, inches and centimeter #include<stdio.h> #include<conio.h> int main() { float km,m,cm,ft,inch; printf("\nenter distance in kilometer : "); scanf("%f",&km); m = km*1000; cm = m*100; inch = cm/2.54; ft = cm/12; printf("\n\n here is what you need "); printf("\n\nDistance in meter %7.2f\t Distance in centimeter : %7.2f",m,cm); printf("\n\nDistance in inches : %7.2f\t Distance in feet : %7.2f",inch,ft); getch(); return 0; } Sample output Previous Program Next Program

4. Write a C program to interchange two numbers. #include<stdio.h> #include<conio.h> int main() { int a,b,c; printf("\nenter a : "); scanf("%d",&a); printf("\nEnter b : "); scanf("%d",&b); c = a; a = b; b = c; printf("\nValues after interchange "); printf("\n\na : %d\t b : %d",a,b); getch(); return 0; } sample output Previous Program Next Program

3. Write a program to calculate simple interest(i= p*r*n/100). where, i - simple interest p - principal amount r - Rate of interest n - Number of years #include<stdio.h> #include<conio.h> int main() { int p,n; float rate,si_int; printf("\n\nEnter principal amount : "); scanf("%d",&p); printf("\nEnter number of years : "); scanf("%d",&n); printf("\nenter rate of interest : "); scanf("%f",&rate); si_int = p*rate*n/100; printf("\nSimple interest is %f",si_int); getch(); return 0; } sample output Previous Program Next Program

2.Write a program to find area of triangle using formula a = h*b*0.5. where, a - area of triangle h - height of triangle and b - length of base of triangle #include<stdio.h> #include<conio.h> int main() { float b,h,area; printf("\t\tProgram to find area of the triangle"); printf("\n---------------------------------------"); printf("\n\nenter length of base of triangle : "); scanf("%f",&b); printf("\nenter height of the triangle : "); scanf("%f",&h); area = 0.5*b*h; printf("\nArea of the triangle is %f",area); getch(); return 0; } Sample output Previous Program Next Program

1.Write a program that perform as calculator( Addition, Multiplication, division, subtraction). #include<stdio.h> #include<conio.h> int main() { float a,b,sum,mul,sub,div; printf("\t\t\t simple calculator\n"); printf("------------------------------------------\n\n"); printf("enter first number : "); scanf("%f",&a); printf("\nenter second number : "); scanf("%f",&b); sum=a+b; mul=a*b; sub=a-b; div=a/b; printf("\naddition is %f\nSubtraction is %f",sum,sub); printf("\nmultiplication is %f\ndivision is %f",mul,div); getch(); return 0; } Sample output Previous Program Next Program