competitive-programming/solved-topcoder/Solved/AlternateColors.cpp at master · the-redback/competitive-programming · GitHub

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#include <bits/stdc++.h>
using namespace std;
struct data {
    long long color;
    string name;
};
bool comp(data a, data b) { return a.color < b.color; }

class AlternateColors {
public:
    string getColor(long long r, long long g, long long b, long long k) {
        string ret;
        data v[4];
        v[0].color = r;
        v[0].name = "RED";
        v[1].color = g;
        v[1].name = "GREEN";
        v[2].color = b;
        v[2].name = "BLUE";
        sort(v, v + 3, comp);
        if (k <= v[0].color * 3) {
            v[1].name = "RED";
            v[2].name = "GREEN";
            v[0].name = "BLUE";
            k = k % 3;
            ret = v[k].name;
        } else {
            k -= v[0].color * 3;
            v[1].color -= v[0].color;
            v[2].color -= v[0].color;
            v[0].color -= v[0].color;
            if (k <= v[1].color * 2) {
                if (v[0].name == "RED") {
                    v[1].name = "GREEN";
                    v[0].name = "BLUE";
                } else if (v[0].name == "GREEN") {
                    v[1].name = "RED";
                    v[0].name = "BLUE";
                } else {
                    v[1].name = "RED";
                    v[0].name = "GREEN";
                }
                k = k % 2;
                ret = v[k].name;
            } else
                ret = v[2].name;
        }

        return ret;
    }

    // BEGIN CUT HERE
public:
    void run_test(int Case) {
        if ((Case == -1) || (Case == 0)) test_case_0();
        if ((Case == -1) || (Case == 1)) test_case_1();
        if ((Case == -1) || (Case == 2)) test_case_2();
        if ((Case == -1) || (Case == 3)) test_case_3();
        if ((Case == -1) || (Case == 4)) test_case_4();
    }

private:
    template <typename T>
    string print_array(const vector<T>& V) {
        ostringstream os;
        os << "{ ";
        for (typename vector<T>::const_iterator iter = V.begin(); iter != V.end(); ++iter) os << '\"' << *iter << "\",";
        os << " }";
        return os.str();
    }
    void verify_case(int Case, const string& Expected, const string& Received) {
        cerr << "Test Case #" << Case << "...";
        if (Expected == Received)
            cerr << "PASSED" << endl;
        else {
            cerr << "FAILED" << endl;
            cerr << "\tExpected: \"" << Expected << '\"' << endl;
            cerr << "\tReceived: \"" << Received << '\"' << endl;
        }
    }
    void test_case_0() {
        long long Arg0 = 1LL;
        long long Arg1 = 1LL;
        long long Arg2 = 1LL;
        long long Arg3 = 3LL;
        string Arg4 = "BLUE";
        verify_case(0, Arg4, getColor(Arg0, Arg1, Arg2, Arg3));
    }
    void test_case_1() {
        long long Arg0 = 3LL;
        long long Arg1 = 4LL;
        long long Arg2 = 5LL;
        long long Arg3 = 4LL;
        string Arg4 = "RED";
        verify_case(1, Arg4, getColor(Arg0, Arg1, Arg2, Arg3));
    }
    void test_case_2() {
        long long Arg0 = 7LL;
        long long Arg1 = 7LL;
        long long Arg2 = 1LL;
        long long Arg3 = 7LL;
        string Arg4 = "GREEN";
        verify_case(2, Arg4, getColor(Arg0, Arg1, Arg2, Arg3));
    }
    void test_case_3() {
        long long Arg0 = 1000000000000LL;
        long long Arg1 = 1LL;
        long long Arg2 = 1LL;
        long long Arg3 = 1000000000002LL;
        string Arg4 = "RED";
        verify_case(3, Arg4, getColor(Arg0, Arg1, Arg2, Arg3));
    }
    void test_case_4() {
        long long Arg0 = 653LL;
        long long Arg1 = 32LL;
        long long Arg2 = 1230LL;
        long long Arg3 = 556LL;
        string Arg4 = "BLUE";
        verify_case(4, Arg4, getColor(Arg0, Arg1, Arg2, Arg3));
    }

    // END CUT HERE
};

// BEGIN CUT HERE
int main() {
    AlternateColors ___test;
    ___test.run_test(-1);
    int gbase;
    cin >> gbase;  // erase this line if you are not using dev-cpp! :)
    return 0;
}
// END CUT HERE