• branch=trunk inherited from [9165bd3629]
• sym-trunk inherited from [9165bd3629]

Added SRM/598-U/1A.cpp version [effb84b9c71f12e1]

            1  +#include <iostream>
            2  +#include <sstream>
            3  +#include <iomanip>
            4  +#include <vector>
            5  +#include <string>
            6  +#include <map>
            7  +#include <set>
            8  +#include <algorithm>
            9  +#include <numeric>
           10  +#include <iterator>
           11  +#include <functional>
           12  +#include <complex>
           13  +#include <queue>
           14  +#include <stack>
           15  +#include <cmath>
           16  +#include <cassert>
           17  +#include <tuple>
           18  +using namespace std;
           19  +typedef long long LL;
           20  +typedef complex<double> CMP;
           21  +
           22  +class BinPacking { public:
           23  + int minBins(vector <int> item)
           24  + {
           25  +  sort(item.begin(), item.end());
           26  +  return rec(item);
           27  + }
           28  +
           29  + int rec(vector<int>& item)
           30  + {
           31  +  if(item.empty())
           32  +   return 0;
           33  +  if(item.back() == 100)
           34  +   return (item.size()+2)/3;
           35  +  int w = item.back();
           36  +  item.pop_back();
           37  +
           38  +  int i = -1;
           39  +  for(int k=0; k<item.size(); ++k)
           40  +   if(item[k] + w <= 300)
           41  +    i = k;
           42  +  if(i!=-1)
           43  +   item.erase(item.begin() + i);
           44  +  return 1 + rec(item);
           45  + }
           46  +
           47  +};
           48  +
           49  +// BEGIN CUT HERE
           50  +#include <ctime>
           51  +double start_time; string timer()
           52  + { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
           53  +template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
           54  + { os << "{ ";
           55  +   for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
           56  +   os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
           57  +void verify_case(const int& Expected, const int& Received) {
           58  + bool ok = (Expected == Received);
           59  + if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
           60  + cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
           61  +#define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
           62  +#define END  verify_case(_, BinPacking().minBins(item));}
           63  +int main(){
           64  +
           65  +CASE(0)
           66  + int item_[] = {150, 150, 150, 150, 150};
           67  +   vector <int> item(item_, item_+sizeof(item_)/sizeof(*item_));
           68  + int _ = 3;
           69  +END
           70  +CASE(1)
           71  + int item_[] = {130, 140, 150, 160};
           72  +   vector <int> item(item_, item_+sizeof(item_)/sizeof(*item_));
           73  + int _ = 2;
           74  +END
           75  +CASE(2)
           76  + int item_[] = {100, 100, 100, 100, 100, 100, 100, 100, 100};
           77  +   vector <int> item(item_, item_+sizeof(item_)/sizeof(*item_));
           78  + int _ = 3;
           79  +END
           80  +CASE(3)
           81  + int item_[] = {100, 200, 100, 100, 100, 100, 200, 100, 200};
           82  +   vector <int> item(item_, item_+sizeof(item_)/sizeof(*item_));
           83  + int _ = 4;
           84  +END
           85  +CASE(4)
           86  + int item_[] = {157, 142, 167, 133, 135, 157, 143, 160, 141, 123, 162, 159, 165, 137, 138, 152};
           87  +   vector <int> item(item_, item_+sizeof(item_)/sizeof(*item_));
           88  + int _ = 8;
           89  +END
           90  +/*
           91  +CASE(5)
           92  + int item_[] = ;
           93  +   vector <int> item(item_, item_+sizeof(item_)/sizeof(*item_));
           94  + int _ = ;
           95  +END
           96  +CASE(6)
           97  + int item_[] = ;
           98  +   vector <int> item(item_, item_+sizeof(item_)/sizeof(*item_));
           99  + int _ = ;
          100  +END
          101  +*/
          102  +}
          103  +// END CUT HERE