Discussion on: Daily Challenge #218 - Possible Sides of a Non-Right Triangle

// check if three integers a, b, c can form a right triangle
bool pythagoreanTriplet(int a, int b, int c){
    return (a*a + b*b == c*c) || (a*a + c*c == b*b) || (c*c + b*b == a*a);
}

// returns a vector of all the possible third side lengths
// without right triangles in increasing order
vector<int> side_len(int a, int b){
    vector<int> thirdSide;
    int start = abs(b - a) + 1;
    int end = b + a - 1;

    for(int i=start; i<=end; i++){
        if(!pythagoreanTriplet(a, b, i))
            thirdSide.push_back(i);
    }

    return thirdSide;
}