EllysSubstringSorter.cpp

#include <iostream>
#include <sstream>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
using namespace std;

class EllysSubstringSorter
        {
        public:
        string getMin(string s, int l)
            {
                string res =  s;
                if(l >= s.size()){
                    sort(res.begin(), res.end());
                    return res;
                }

                for(int i = 0; i+l <= s.size(); i++){
                    string t = s.substr(i, l);
                    sort(t.begin(), t.end());
                    t = s.substr(0, i) + t + s.substr(i+l);
                    res = min(res, t);
//                    cout<<res<<endl;
                }
                return res;
            }

// 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(); if ((Case == -1) || (Case == 5)) test_case_5(); }
	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 = "TOPCODER"; int Arg1 = 4; string Arg2 = "COPTODER"; verify_case(0, Arg2, getMin(Arg0, Arg1)); }
	void test_case_1() { string Arg0 = "ESPRIT"; int Arg1 = 3; string Arg2 = "EPRSIT"; verify_case(1, Arg2, getMin(Arg0, Arg1)); }
	void test_case_2() { string Arg0 = "AAAAAAAAA"; int Arg1 = 2; string Arg2 = "AAAAAAAAA"; verify_case(2, Arg2, getMin(Arg0, Arg1)); }
	void test_case_3() { string Arg0 = "ABRACADABRA"; int Arg1 = 5; string Arg2 = "AAABCRDABRA"; verify_case(3, Arg2, getMin(Arg0, Arg1)); }
	void test_case_4() { string Arg0 = "BAZINGA"; int Arg1 = 6; string Arg2 = "ABGINZA"; verify_case(4, Arg2, getMin(Arg0, Arg1)); }
	void test_case_5() { string Arg0 = "AAAWDIUAOIWDESBEAIWODJAWDBPOAWDUISAWDOOPAWD"; int Arg1 = 21; string Arg2 = "AAAAAABDDDEEIIIJOOSUWWWWDBPOAWDUISAWDOOPAWD"; verify_case(5, Arg2, getMin(Arg0, Arg1)); }

// END CUT HERE

        };

// BEGIN CUT HERE
     int main()
     {
        EllysSubstringSorter ___test;
        ___test.run_test(-1);
     }
// END CUT HERE