Artifact f68efed934ab056b0a0f09dbfed2cfe08d7285bd
#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>
using namespace std;
typedef long long LL;
typedef long double LD;
typedef complex<LD> CMP;
class CuttingBitString { public:
static const int INF = 999;
int getmin(string S)
{
LL v = 1;
set<string> good;
for(LL v=1; v<(1LL<<60); v*=5) {
cerr << bin(v) << endl;
good.insert(bin(v));
}
int s = best(S, good, 0, S.size());
return s>=INF ? -1 : s;
}
map<pair<int,int>, int> memo;
int best(const string& S, const set<string>& good, int s, int e)
{
pair<int,int> key(s,e);
if(memo.count(key))
return memo[key];
if( good.count(S.substr(s, e-s)) )
return memo[key] = 1;
int score = INF;
for(int m=s+1; m+1<=e; ++m)
{
int x = best(S, good, s, m);
int y = best(S, good, m, e);
score = min(score, x+y);
}
return memo[key] = score;
}
string bin(LL v)
{
string s;
for(; v; v>>=1)
s += (v&1 ? '1' : '0');
reverse(s.begin(), s.end());
return s;
}
};
// 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 int& Expected, const int& 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(_, CuttingBitString().getmin(S));}
int main(){
CASE(3)
string S = "110011011";
int _ = 3;
END
CASE(0)
string S = "101101101";
int _ = 3;
END
CASE(1)
string S = "1111101";
int _ = 1;
END
CASE(2)
string S = "00000";
int _ = -1;
END
CASE(4)
string S = "1000101011";
int _ = -1;
END
CASE(5)
string S = "111011100110101100101110111";
int _ = 5;
END
CASE(6)
string S = "11111111111111111111111111111111111111111111111111";
int _ = -999;
END
CASE(7)
string S = "1101100011010111001001101011011100010111011110101";
int _ = 1;
END
}
// END CUT HERE