topcoder/ContiguousSubsequences.cpp at master · cou929/topcoder · GitHub

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// BEGIN CUT HERE
// END CUT HERE
#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 ContiguousSubsequences {
public:
  vector <int> findMaxAverage(vector <int> a, int K) {
    vector <int> ret(2, 0);
    double avg = -1;

    for (int len=a.size(); len>=K; len--) {
      for (int pos=0; pos<=a.size()-len; pos++) {
        int sum = 0;
        for (int i=pos; i<pos+len; i++)
          sum += a[i];
        if (avg < (double)sum/(double)len) {
          avg = (double)sum/(double)len;
          ret[0] = pos, ret[1] = pos + len - 1;
        }
      }
    }

    return ret;
  }

  // BEGIN CUT HERE
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(); if ((Case == -1) || (Case == 4)) test_case_4(); if ((Case == -1) || (Case == 5)) test_case_5(); if ((Case == -1) || (Case == 6)) test_case_6(); if ((Case == -1) || (Case == 7)) test_case_7(); }
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 vector <int> &Expected, const vector <int> &Received) { cerr << "Test Case #" << Case << "..."; if (Expected == Received) cerr << "PASSED" << endl; else { cerr << "FAILED" << endl; cerr << "\tExpected: " << print_array(Expected) << endl; cerr << "\tReceived: " << print_array(Received) << endl; } }
	void test_case_0() { int Arr0[] = {1,3,7}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 2; int Arr2[] = {1, 2 }; vector <int> Arg2(Arr2, Arr2 + (sizeof(Arr2) / sizeof(Arr2[0]))); verify_case(0, Arg2, findMaxAverage(Arg0, Arg1)); }
	void test_case_1() { int Arr0[] = {5,1,3,4}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 2; int Arr2[] = {2, 3 }; vector <int> Arg2(Arr2, Arr2 + (sizeof(Arr2) / sizeof(Arr2[0]))); verify_case(1, Arg2, findMaxAverage(Arg0, Arg1)); }
	void test_case_2() { int Arr0[] = {10}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 1; int Arr2[] = {0, 0 }; vector <int> Arg2(Arr2, Arr2 + (sizeof(Arr2) / sizeof(Arr2[0]))); verify_case(2, Arg2, findMaxAverage(Arg0, Arg1)); }
	void test_case_3() { int Arr0[] = {381,921,513,492,135,802,91,519}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 1; int Arr2[] = {1, 1 }; vector <int> Arg2(Arr2, Arr2 + (sizeof(Arr2) / sizeof(Arr2[0]))); verify_case(3, Arg2, findMaxAverage(Arg0, Arg1)); }
	void test_case_4() { int Arr0[] = {381,921,513,492,135,802,91,519}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 4; int Arr2[] = {0, 3 }; vector <int> Arg2(Arr2, Arr2 + (sizeof(Arr2) / sizeof(Arr2[0]))); verify_case(4, Arg2, findMaxAverage(Arg0, Arg1)); }
	void test_case_5() { int Arr0[] = {3,5,7,7,2,5,4,7,7,2,4}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 1; int Arr2[] = {2, 3 }; vector <int> Arg2(Arr2, Arr2 + (sizeof(Arr2) / sizeof(Arr2[0]))); verify_case(5, Arg2, findMaxAverage(Arg0, Arg1)); }
	void test_case_6() { int Arr0[] = {3, 1, 3, 3, 3, 1, 3, 3, 3}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 1; int Arr2[] = {2, 4 }; vector <int> Arg2(Arr2, Arr2 + (sizeof(Arr2) / sizeof(Arr2[0]))); verify_case(6, Arg2, findMaxAverage(Arg0, Arg1)); }
	void test_case_7() { int Arr0[] = {1, 3, 2, 1, 1, 2, 2, 2, 2}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arg1 = 3; int Arr2[] = {5, 8 }; vector <int> Arg2(Arr2, Arr2 + (sizeof(Arr2) / sizeof(Arr2[0]))); verify_case(7, Arg2, findMaxAverage(Arg0, Arg1)); }

  // END CUT HERE

};
// BEGIN CUT HERE
int main() {
ContiguousSubsequences ___test;
___test.run_test(-1);
}
// END CUT HERE