Calculating Percentage & Grade

#include <stdio.h>

#include <conio.h>

void main()

{

        int sub1, sub2, sub3, sub4, sub5;

        float total, percentage;

        clrscr();

        printf("\n\n\n***Program to Calculate Grade***\n\n\n");

        printf("Enter the obtained marks of Subject 1 : ");

        scanf("%d",&sub1);

        printf("Enter the obtained marks of Subject 2 : ");

        scanf("%d",&sub2);

        printf("Enter the obtained marks of Subject 3 : ");

        scanf("%d",&sub3);

        printf("Enter the obtained marks of Subject 4 : ");

        scanf("%d",&sub4);

        printf("Enter the obtained marks of Subject 5 : ");

        scanf("%d",&sub5);

        total = sub1+sub2+sub3+sub4+sub5;

        percentage = ((float)total/500)*100;

        printf("\n\nYour Total marks is %.f",total);

        printf("\nYour Percentage is %.2f",percentage);

        if(percentage>40)

        {

                if(percentage>60)

                {

                        if(percentage>80)

                        {

                                printf("\nYour Grade is A.");

                        }

                        else

                        {

                                printf("\nYour Grade is B.");

                        }

                }

                else

                {

                        printf("\nYour Grade is C.");

                }

        }

        else

        {

                printf("\n\nHome Guidance is necessary.");

        }

        getch();

}

Calculating Grand Total on Discount

#include <stdio.h>

#include <conio.h>

void main()

{

                clrscr();

                int a, b, c, d, e;

                float total, discount, discountAmt, grandTotal;

                printf("Enter the 1st amount : ");

                scanf("%d",&a);

                printf("Enter the 2nd amount : ");

                scanf("%d",&b);

                printf("Enter the 3rd amount : ");

                scanf("%d",&c);

                printf("Enter the 4th amount : ");

                scanf("%d",&d);

                printf("Enter the 5th amount : ");

                scanf("%d",&e);

                total = a+b+c+d+e;

                printf("\n\nTotal = Rs. %.f",total);

                if(total>5000)

                {

                                discount = 5;

                }

                else

                {

                                discount = 3;

                }

                printf("\n\nYou will get %.f discount.",discount);

                discountAmt = ((float) discount/100) * total;

                grandTotal = total - discountAmt;

                printf("\n\nDiscount Amount = Rs. %.f",discountAmt);

                printf("\n\Total Amount =  Rs. %.f",grandTotal);

                getch();

}

Convert Character to ASCII Code

#include <stdio.h>

#include <conio.h>

void main()

{

                char a;

                clrscr();

                printf("Enter a character : ");

                scanf("%c",&a);

                printf("ASCII code of %c is %u",a,a);

                getch();

}

Greatest value between Three Numbers

#include <stdio.h>

#include <conio.h>

void main()

{

                int a,b,c;

                clrscr();

                printf("Enter the A number : ");

                scanf("%d",&a);

                printf("Enter the A number : ");

                scanf("%d",&b);

                printf("Enter the C number : ");

                scanf("%d",&c);

                if(a>b)

                {

                                if(a>c)

                                {

                                                printf("A is the greatest Number.");

                                }

                }

                else

                {

                                if(b>c)

                                {

                                                printf("B is the greatest Number.");

                                }

                                else

                                {

                                                printf("C is the greatest Number.");

                                }

                }

                getch();

}