2652 - Sum Multiples.cpp

class Solution 
{
    public:
        int sumOfMultiples(int n) 
        {
            int sum = 0;
            for(int i=1; i<=n; i++)
            {
                if(i % 3 == 0 || i % 5 == 0 || i % 7 == 0) sum += i;
            }
            return sum;
        }
};