Help with C program for sum of two numbers in range

Question

Hello,
I have for homework to write program in C. User have to type two numbers and program will do sum of numbers in range (example: If user type 3 and 5 program will shows result of 3+4+5) using dowhile loop, but it no works.

When I type 3 and 5 nothing no happens. Can you help me please?

#include <stdio.h>
#include <stdlib.h>

int main()
{
int m,n,i,s=0;
printf("Type two numbers\n");
scanf("%d%d",&m,&n);
do {
s=s+i;
i++;
}
while(i<=n); if (i>0);
printf("S=%d",s);
return 0;
}

Answer 1

Zoran Dori Do like this

do {
s = s + m;
m++;
}
while(m <= n);

Answer 2

Works, thank you AJ #Level 20 End Day