CarolsSinging.cpp

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#include <sstream>
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <utility>
#include <set>
#include <cctype>
#include <queue>
#include <stack>
using namespace std;
class CarolsSinging {
public:
  int choose(vector <string> lyrics)
  {
    int ret = lyrics.size();

    for (int i=0; i<(1 << lyrics[0].size()); i++)
      {
        bool sang[lyrics.size()];
        memset(sang, false, sizeof(sang));

        for (int j=0; j<lyrics.size(); j++)
          for (int k=0; k<lyrics[0].size(); k++)
            if ((i & 1 << k) && lyrics[j][k] == 'Y')
              sang[j] = true;

        bool ok = true;
        for (int j=0; j<lyrics.size(); j++)
          if (!sang[j])
            ok = false;

        if (ok)
          ret = min(ret, __builtin_popcount(i));
      }

    return ret;
  }
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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(); }
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[] = {"YN","NY"}; vector <string> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 2; verify_case(0, Arg1, choose(Arg0)); }
  void test_case_1() { string Arr0[] = {"YN","YY","YN"}; vector <string> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 1; verify_case(1, Arg1, choose(Arg0)); }
  void test_case_2() { string Arr0[] = {"YNN","YNY","YNY","NYY","NYY","NYN"}; vector <string> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 2; verify_case(2, Arg1, choose(Arg0)); }
  void test_case_3() { string Arr0[] = {"YNNYYY","YYNYYY","YNNYYN","NYYNNN","YYYNNN","YYYNNY","NYYYYY","NYNYYY","NNNNYY",
                                        "YYYYYY","YNNNNN","YYYYNY","YYNNNN","NNYYYN","NNNNYY","YYYNNN","NYNNYN","YNNYYN",
                                        "YYNNNY","NYYNNY","NNYYYN","YNYYYN","NNNYNY","YYYYNN","YYNYNN","NYYNYY","YYNYYN"}; vector <string> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 4; verify_case(3, Arg1, choose(Arg0)); }

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};
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int main() {
CarolsSinging ___test;
___test.run_test(-1);
}
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