incorrect solution

422.cpp

// was trying to sum up Pa + Pb_selective {2,3,17} but the probability that both team score a prime should
// be calculated this way pA * pB

double getProbability(int skillOfTeamA, int skillOfTeamB) {
        vector<int> aWin = {2,3,5,7,11,13,17}, bWin = {2,3,17};
        double ret, pa = skillOfTeamA/100.0, pb = skillOfTeamB/100.0;
        for(int d : aWin)
            ret += pow(pa, d)*pow(pb,(18-d))*C(18, d);
        for(int d: bWin)
            ret += pow(pb, d)*pow(pa,(18-d))*C(18, d);
        return ret;
}