Multiplication of numbers from a to b

Question

I need to write algorithm, that multiplies numbers from a to b without input (scanf). Like this:

a = 2;
b = 6;

2 * 3
2 * 4
...
2 * 6

I have my algorithm:

void main()
{
    int dist = 1;
    int a = 2;
    int b = 5;
    for (int i = a; a <= b; a++) {
        printf("%d", a * a++);
    }
}

but it doesn't work correct

Answer 1

This is because you are increasing a (a++) two times in your example above. Also you mixed up a and i a little bit. Correct one is:

int a = 2;
int b = 5;
for (int i = a; i <= b; i++)
{
    printf("%d * %d = %d\n", a, i, a * i);
}

which prints:

2 * 2 = 4

2 * 3 = 6

2 * 4 = 8

2 * 5 = 10