CatsOnTheLineDiv2.cpp

#include <iostream>
#include <sstream>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <queue>
#include <cstring>
#include <climits>
using namespace std;
typedef pair<int,int> pi;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<string> vs;
typedef vector<vs> vvs;

class CatsOnTheLineDiv2 {
        public:
        string getAnswer(vector <int> p, vector <int> c, int t)
        {
            int n = p.size();
            for(int c1 : c) if(2*t+1 < c1) return "Impossible";

            vector<pi> v;
            for(int i = 0; i < n; i++)
                v.push_back(make_pair(p[i], c[i]));

            sort(v.begin(), v.end());

            for(int i = 0; i < n; i++){
                p[i] = v[i].first;
                c[i] = v[i].second;
            }

            int x = p[0]-t, y = x+c[0]-1;

            for(int i = 1; i < n; i++){
                int p1 = p[i], c1 = c[i];
                x = max(y+1, p1-t);
                y = x+c1-1;
                if(x > p1+t || y > p1+t) return "Impossible";
            }

            return "Possible";
        }

// 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(); }
	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 string &Expected, const string &Received) { cerr << "Test Case #" << Case << "..."; if (Expected == Received) cerr << "PASSED" << endl; else { cerr << "FAILED" << endl; cerr << "\tExpected: \"" << Expected << '\"' << endl; cerr << "\tReceived: \"" << Received << '\"' << endl; } }
	void test_case_0() { int Arr0[] = {0}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arr1[] = {7}; vector <int> Arg1(Arr1, Arr1 + (sizeof(Arr1) / sizeof(Arr1[0]))); int Arg2 = 3; string Arg3 = "Possible"; verify_case(0, Arg3, getAnswer(Arg0, Arg1, Arg2)); }
	void test_case_1() { int Arr0[] = {0}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arr1[] = {8}; vector <int> Arg1(Arr1, Arr1 + (sizeof(Arr1) / sizeof(Arr1[0]))); int Arg2 = 2; string Arg3 = "Impossible"; verify_case(1, Arg3, getAnswer(Arg0, Arg1, Arg2)); }
	void test_case_2() { int Arr0[] = {0, 1}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arr1[] = {3, 1}; vector <int> Arg1(Arr1, Arr1 + (sizeof(Arr1) / sizeof(Arr1[0]))); int Arg2 = 0; string Arg3 = "Impossible"; verify_case(2, Arg3, getAnswer(Arg0, Arg1, Arg2)); }
	void test_case_3() { int Arr0[] = {5, 0, 2}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arr1[] = {2, 3, 5}; vector <int> Arg1(Arr1, Arr1 + (sizeof(Arr1) / sizeof(Arr1[0]))); int Arg2 = 2; string Arg3 = "Impossible"; verify_case(3, Arg3, getAnswer(Arg0, Arg1, Arg2)); }
	void test_case_4() { int Arr0[] = {5, 1, -10, 7, 12, 2, 10, 20}; vector <int> Arg0(Arr0, Arr0 + (sizeof(Arr0) / sizeof(Arr0[0]))); int Arr1[] = {3, 4, 2, 7, 1, 4, 3, 4}; vector <int> Arg1(Arr1, Arr1 + (sizeof(Arr1) / sizeof(Arr1[0]))); int Arg2 = 6; string Arg3 = "Possible"; verify_case(4, Arg3, getAnswer(Arg0, Arg1, Arg2)); }

// END CUT HERE

 };

// BEGIN CUT HERE
int main(){

        CatsOnTheLineDiv2 ___test;
        ___test.run_test(-1);

}
// END CUT HERE