Program questions.. for ITERATIVE STATEMENTS

[zegdrick]

Using while loop
1. Make and run a program that will output all the common factors of two numbers.
2. Make and run a program that will display all the consonants from ’A’ to ’Z’.
Using do-while loop
1. Make and run a program that will output all the prime numbers from 1-100.
2. Make and run a program that will allow the user to input ten numbers and display the total number of positive and negative numbers entered.
Using for loop
1. Make and run a program that will display the numbers 1, 2, 3, and so on depending on the number of lines the user will enter. For example, if input=3, first line of output should be 1, next line 2 3, and the last line 4 5 6.
2. Make and run a program that will be able to display the following output:

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

[MiiNiPaa]

Please, show what you have done at this point. We are willing to help you with problems you encountered, but we won't do your homework for you.

[zegdrick]

for number 1:::

#include<stdio.h>
#include<conio.h>
main()
{
int num1,num2,divisor;
printf("Enter a 2 integers: \n");
scanf("%d%d",&num1,&num2);
printf("The common factors of %d",num1);
printf(" and %d",num2);
printf(" is:\n");
(divisor=num1)&&(divisor=num2);
while(divisor>0)
{
if((num1%divisor==0)&&(num2%divisor==0))
printf("\n%d",divisor);
divisor--;
}
getch();
return0;
}

[zegdrick]

for number 2 (while loop & do-while loop) is hard for me the rest its okay ....