1.Three numbers are input through keyboard, write a program to find out the maximum and minimum of these 3 numbers.
#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
int a,b,c;
float aver;
double s;
clrscr();
printf("Please enter three different inteser :\n");
scanf("%d%d%d", &a,&b,&c);
printf("\n%d is maximum & %d is minimum .",a,c);
else if(a>b && c>b && a>c)
printf("\n%d is maximum & %d is minimum .",a,b);
else if(c>a && a>b && c>b)
printf("\n%d is maximum & %d is minimum .",c,b);
else if(b>a && b>c && a>c)
printf("\n%d is maximum & %d is minimum .",b,c);
else if(b>c && b>a && c>a)
printf("\n%d is maximum & %d is minimum .",b,a);
else
printf("\n%d is maximum & %d is minimum .",c,a);
getch();
}
2.Take a year as input and determine whether it is a leap year.
#include<stdio.h>
#include<conio.h>
void main()
{
int year;
clrscr();
printf("Please enter a year to teste for leap year : ");
scanf("%d", &year);
if((year%4==0 && year%100 !=0)|| year%400==0)
printf("\n%d is a leap year.",year);
else
printf("\n%d is not a leap year.",year);
getch();
}
6.A 5 digit number is input through the keyboard, write a program to reverse the number and cheak it if it is equal to the original number.
#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
Long int n,a[50];
long sum=0;
clrscr();
while(n!=0)
{
a[i]=n%10;
n=n/10;
i++;
}
for(j=0;j<i;j++)
{
sum+=a[i-j-1]*pow(10,j);
}
printf(“Reverse number is %d : “,sum);
if(b==sum)
printf(“Equal to the main number.”);
else
printf(“Not equal to the main number.”);
getch();
}
(ii)7 + 20 + 33 + .. . ( up to nth term )
#include<stdio.h>
#include<conio.h>
void main()
{
long int a,n,i,j;
long sum = 0,term;
clrscr();
printf("Sum of serises : ");
printf("\n\7 + 20 + 33 + .. . ( up to nth term ));
printf("\n\nEnter a value for n : ");
scanf("%d",&n);
for(i=0;i<=n;i=i++)
{
term=5+(i*6);
sum = sum+i;
}
printf("sum = %ld",sum);
getch();
}
3.If cost price and selling price of an item is input through the keyboard, write a program to determine whether the seller has made profit or incurred loss. Also determine how much he made or loss he incurred.
#include<stdio.h>
#include<conio.h>
void main()
{ float a,b;
long float p,l;
clrscr();
printf("Enter cost price(In TK) : ");
scanf("%f",&a);
printf("Enter selling price(In TK) : ");
scanf("%f",&b);
p = ((b-a)/a)*100.00;
l = ((a-b)/a)*100.00;
if(a<b)
printf("\nHe made a profit.");
else if(b<a)
printf("\nHe made a loss .");
else
printf("\nHe neither made a profit nor a loss .");
if(a<b)
printf("\nHe made %.2lf percent profit .",p);
else if(a>b)
printf("\nHe made %.2lf percent loss .",l);
else
getch();
}
4.Any integer is input through keyboard. Write a program to find out whether it is an odd number or even number.
#include<stdio.h>
#include<conio.h>
void main()
{
long int n;
clrscr();
printf("Enter a intger number to be tested for even or odd nunber : ");
scanf("%ld",&n);
if(n%2==0)
printf("\n%ld is enen number .",n);
else
printf("\n%ld is odd number .",n);
getch();
}
5.According to Gregorian calendar, it was Monday on the date 01/01/1900. If any year is input through the keyboard write a program to find out what is the day on 1st January of this year.
#include<stdio.h>
#include<conio.h>
void main()
{
unsigned int days;
int year,n=0, yr,i;
clrscr();
printf("Enter the year:");
scanf ("%d", &year);
for(i=1900;i<year;i++)
{
if((i%4==0 && i%100 !=0)|| i%400==0)
n=n+1;
else
n=n+0;
}
yr=(n+(year-1900));
days = (yr*365);
if (days%7 == 0)
printf("The day on Jan 1st of this year is Monday");
else if (days%7 == 1)
printf("The day on Jan 1st of this year is Tuesday");
else if (days%7 == 2)
printf("The day on Jan 1st of this year is Wednesday");
else if (days%7 == 3)
printf("The day on Jan 1st of this year is Thursday");
else if (days%7 ==4)
printf("The day on Jan 1st of this year is Friday");
else if (days%7 ==5)
printf("The day on Jan 1st of this year is Saturday");
else if (days%7 ==6)
printf("The day on Jan 1st of this year is Sunday");
getch();
}
7.AUST grading policy is :
(i) 80% marks or above is A+
(ii) 75% to 79% marks is A
(iii) 70% to 74% marks is A-
(iv) 65% to 69% marks is B+
(v) 60% to 64% marks is B
(vi) 55% to 59% marks is B-
(vii) 50% to 54% marks is C+
(viii) 45% to 44% marks is C
(ix) 40% to 44% marks is D
(x) Below 40% is F
Write a program which will take an input from user and calculate the grade of a student according to AUST grading policy based on that input.
#include<stdio.h>
#include<conio.h>
void main()
{
float marks;
clrscr();
printf("Input marks that obtained : ");
scanf("%f", &marks);
if((marks>100) || (marks<0))
printf("\nInvalid number");
else if(marks<40)
printf("\nGrade = F ");
else if(marks<45)
printf("\nGrade = D");
else if(marks<50)
printf("\nGrade = C");
else if(marks<55)
printf("\nGrade = C+");
else if(marks<60)
printf("\nGrade = B-");
else if(marks<65)
printf("\nGrade = B");
else if(marks<70)
printf("\nGrade = B+");
else if(marks<75)
printf("\nGrade = A-");
else if(marks<80)
printf("\nGrade = A");
else
printf("\nGrade = A+");
printf("\n\nPress any key for exit...");
getch();
}
8.A certain grade of steel is graded according to the following conditions:
(i) Hardness must be greater than 60
(ii) Carbon content must be less than 0.7
(iii) Tensile strength must be greater than 50000
The grades are as follows :
Grade is 10 if all three conditions are met
Grade is 9 if condition (i) and (ii) are met
Grade is 8 if condition (ii) and (iii) are met
Grade is 7 if condition (i) and (iii) are met
Grade is 6 if only one condition is met
Grade is 5 if none of the conditions are met
Write a program which will require the user to give values of hardness, carbon content and tensile strength of the steel under consideration and output the grade of the steel.
#include<stdio.h>
#include<conio.h>
void main()
{
float h,c,t;
clrscr();
printf("Enter the value of Hardness of the steel : ");
scanf("%f",&h);
printf("\nEnter the value of Carbon content of the steel : ");
scanf("%f",&c);
printf("\nEnter the value of Tensile strength of the steel : ");
scanf("%f",&t);
if(h>60.00 && c<0.7 && t>5000.00)
printf("\n\t\tGrade is 10");
else if(h>60.00 && c<0.7)
printf("\n\t\tGrade is 9");
else if(c<0.7 && t>5000.00)
printf("\n\t\tGrade is 8");
else if(h>60.00 && t>5000.00)
printf("\n\t\tGrade is 7");
else if(h>60.00 || c<0.7 || t>5000.00)
printf("\n\t\tGrade is 6");
else
printf("\n\t\tGrade is 5");
printf("\n\nPress any key for exit...");
getch(); }
Those solutions helped a lot. Thank you so much!
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