Artifact 83e9a8df96eca9dfa5afe1e1491e75da6d3f0521
#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 FlipGame { public:
int minOperations(vector <string> board)
{
int cnt = 0;
while( !all_zero(board) ) {
next(board);
++cnt;
}
return cnt;
}
bool all_zero(const vector <string>& board)
{
for(int i=0; i<board.size(); ++i)
if( count(board[i].begin(), board[i].end(), '0') != board[i].size() )
return false;
return true;
}
void next(vector<string>& board)
{
int X=0;
for(int y=0; y<board.size(); ++y)
{
int last1 = X-1;
for(int x=X; x<board[y].size(); ++x)
if( board[y][x] == '1' )
last1 = x;
X = last1+1;
for(int x=0; x<X; ++x)
board[y][x] = char('0'+'1'-board[y][x]);
}
}
};
// 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(_, FlipGame().minOperations(board));}
int main(){
CASE(0)
string board_[] = {"1000",
"1110",
"1111"};
vector <string> board(board_, board_+sizeof(board_)/sizeof(*board_));
int _ = 1;
END
CASE(1)
string board_[] = {"1111",
"1111",
"1111"};
vector <string> board(board_, board_+sizeof(board_)/sizeof(*board_));
int _ = 1;
END
CASE(2)
string board_[] = {"00",
"00",
"00"};
vector <string> board(board_, board_+sizeof(board_)/sizeof(*board_));
int _ = 0;
END
CASE(3)
string board_[] = {
"00000000",
"00100000",
"01000000",
"00001000",
"00000000"};
vector <string> board(board_, board_+sizeof(board_)/sizeof(*board_));
int _ = 4;
END
CASE(4)
string board_[] = {"000000000000001100000000000000",
"000000000000011110000000000000",
"000000000000111111000000000000",
"000000000001111111100000000000",
"000000000011111111110000000000",
"000000000111111111111000000000",
"000000001100111111001100000000",
"000000011000011110000110000000",
"000000111100111111001111000000",
"000001111111111111111111100000",
"000011111111111111111111110000",
"000111111111000000111111111000",
"001111111111100001111111111100",
"011111111111110011111111111110",
"111111111111111111111111111111"};
vector <string> board(board_, board_+sizeof(board_)/sizeof(*board_));
int _ = 29;
END
/*
CASE(5)
string board_[] = ;
vector <string> board(board_, board_+sizeof(board_)/sizeof(*board_));
int _ = ;
END
CASE(6)
string board_[] = ;
vector <string> board(board_, board_+sizeof(board_)/sizeof(*board_));
int _ = ;
END
*/
}
// END CUT HERE