Artifact c544017c1bc2bc01f3adf8cd2ab610f4b727e6ce
#include <iostream>
#include <sstream>
#include <iomanip>
#include <vector>
#include <string>
#include <map>
#include <set>
#include <algorithm>
#include <numeric>
#include <iterator>
#include <functional>
#include <complex>
#include <queue>
#include <stack>
#include <cmath>
#include <cassert>
#include <cstring>
using namespace std;
typedef long long LL;
typedef complex<double> CMP;
class RemovingDigits { public:
string maxNumber(string number, string digits)
{
vector<int> d(9);
for(int i=0; i<digits.size(); ++i)
d[digits[i]-'1'] ++;
vector<int> n(9);
for(int i=0; i<number.size(); ++i)
n[number[i]-'1'] ++;
return maximize(number, 0, n, d);
}
map<pair< int, vector<int> >, string> memo;
string maximize(const string& number, int s, vector<int>& n, vector<int>& d)
{
if( s == number.size() )
return "";
pair< int, vector<int> > key(s, d);
if( memo.count(key) )
return memo[key];
char ch = number[s]-'1';
string cand = "";
n[ch]--;
if( n[ch] >= d[ch] )
{
string c1 = number[s] + maximize(number, s+1, n, d);
cand = max(cand, c1);
}
if( d[ch] > 0 )
{
d[ch]--;
string c2 = maximize(number, s+1, n, d);
cand = max(cand, c2);
d[ch]++;
}
n[ch]++;
return memo[key] = cand;
}
};
// BEGIN CUT HERE
#include <ctime>
double start_time; string timer()
{ ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
{ os << "{ ";
for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
void verify_case(const string& Expected, const string& Received) {
bool ok = (Expected == Received);
if(ok) cerr << "PASSED" << timer() << endl; else { cerr << "FAILED" << timer() << endl;
cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
#define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
#define END verify_case(_, RemovingDigits().maxNumber(number, digits));}
int main(){
CASE(0)
string number = "12345";
string digits = "513";
string _ = "24";
END
CASE(1)
string number = "112352";
string digits = "1123";
string _ = "52";
END
CASE(2)
string number = "123456654321";
string digits = "612534";
string _ = "654321";
END
CASE(3)
string number = "654321123456";
string digits = "612534";
string _ = "654321";
END
CASE(4)
string number = "2654982765982365";
string digits = "2345978";
string _ = "698265265";
END
/*
CASE(5)
string number = ;
string digits = ;
string _ = ;
END
CASE(6)
string number = ;
string digits = ;
string _ = ;
END
*/
}
// END CUT HERE