{

public:

string getMin(string S, int L)

{

int n = S.size();

sort(S.begin() + n - L, S.end());

if(n == L) return S;

return getMin(S.substr(0, n-1), L);

}

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(); if ((Case == -1) || (Case == 5)) test_case_5(); if ((Case == -1) || (Case == 6)) test_case_6(); }

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() { string Arg0 = "ABRACADABRA"; int Arg1 = 5; string Arg2 = "AAAAA"; verify_case(0, Arg2, getMin(Arg0, Arg1)); }

void test_case_1() { string Arg0 = "ESPRIT"; int Arg1 = 3; string Arg2 = "EIP"; verify_case(1, Arg2, getMin(Arg0, Arg1)); }

void test_case_2() { string Arg0 = "BAZINGA"; int Arg1 = 7; string Arg2 = "AABGINZ"; verify_case(2, Arg2, getMin(Arg0, Arg1)); }

void test_case_3() { string Arg0 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; int Arg1 = 13; string Arg2 = "ABCDEFGHIJKLM"; verify_case(3, Arg2, getMin(Arg0, Arg1)); }

void test_case_4() { string Arg0 = "GOODLUCKANDHAVEFUN"; int Arg1 = 10; string Arg2 = "AACDDEFGHK"; verify_case(4, Arg2, getMin(Arg0, Arg1)); }

void test_case_5() { string Arg0 = "AAAWDIUAOIWDESBEAIWODJAWDBPOAWDUISAWDOOPAWD"; int Arg1 = 21; string Arg2 = "AAAAAAAAABBDDDDDDDEEI"; verify_case(5, Arg2, getMin(Arg0, Arg1)); }

void test_case_6() { string Arg0 = "TOPCODER"; int Arg1 = 3; string Arg2 = "CDT"; verify_case(6, Arg2, getMin(Arg0, Arg1)); }

{

EllysSortingTrimmer ___test;

___test.run_test(-1);