public:

int dfs(int s){

if(c[s] >= 0) return c[s];

int rc = 0;

for(int i = 0; i < n; i++){

if(M[s][i]){

rc = max(rc, dfs(i)+M[s][i]);

}

}

c[s] = rc;

return rc;

}

int howLong(vector <string> connects, vector <string> costs)

{

n = costs.size();

for(int i = 0; i < 55; i++)

for(int j = 0; j < 55; j++)

M[i][j] = 0;

fill(c, c+55, -1);

for(int i = 0; i < n; i++){

string s = connects[i], t = costs[i];

int j, cc;

stringstream ss(s), st(t);

if(s.empty()) c[i] = 0;

while(ss>>j){

st>>cc;

M[i][j] = cc;

}

}

int rc = 0;

for(int i = 0; i < n; i++)

rc = max(rc, dfs(i));

return rc;

}

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 int &Expected, const int &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() { string Arr0[] = {"1 2",

"2",

""}; vector <string> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); string Arr1[] = {"5 3",

"7",

""}; vector <string> Arg1(Arr1, Arr1 + (sizeof(Arr1) / sizeof(Arr1[0]))); int Arg2 = 12; verify_case(0, Arg2, howLong(Arg0, Arg1)); }

void test_case_1() { string Arr0[] = {"1 2 3 4 5","2 3 4 5","3 4 5","4 5","5",""}; vector <string> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); string Arr1[] = {"2 2 2 2 2","2 2 2 2","2 2 2","2 2","2",""}; vector <string> Arg1(Arr1, Arr1 + (sizeof(Arr1) / sizeof(Arr1[0]))); int Arg2 = 10; verify_case(1, Arg2, howLong(Arg0, Arg1)); }

void test_case_2() { string Arr0[] = {"1","2","3","","5","6","7",""}; vector <string> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); string Arr1[] = {"2","2","2","","3","3","3",""}; vector <string> Arg1(Arr1, Arr1 + (sizeof(Arr1) / sizeof(Arr1[0]))); int Arg2 = 9; verify_case(2, Arg2, howLong(Arg0, Arg1)); }

void test_case_3() { string Arr0[] = {"","2 3 5","4 5","5 6","7","7 8","8 9","10",

"10 11 12","11","12","12",""}; vector <string> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); string Arr1[] = {"","3 2 9","2 4","6 9","3","1 2","1 2","5",

"5 6 9","2","5","3",""}; vector <string> Arg1(Arr1, Arr1 + (sizeof(Arr1) / sizeof(Arr1[0]))); int Arg2 = 22; verify_case(3, Arg2, howLong(Arg0, Arg1)); }

void test_case_4() { string Arr0[] = {"","2 3","3 4 5","4 6","5 6","7","5 7",""}; vector <string> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); string Arr1[] = {"","30 50","19 6 40","12 10","35 23","8","11 20",""}; vector <string> Arg1(Arr1, Arr1 + (sizeof(Arr1) / sizeof(Arr1[0]))); int Arg2 = 105; verify_case(4, Arg2, howLong(Arg0, Arg1)); }

Circuits ___test;

___test.run_test(-1);