Submission #1026209

#	Time	Username	Problem	Language	Result	Execution time	Memory
1026209		_rain_	Best Place (NOI17_bestplace)	C++14	100 / 100	30 ms	4048 KiB

bestplace

#include<bits/stdc++.h>
using namespace std;

mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
namespace Random
{
	#define int long long
	int Rand(int l , int r)
		{
			return uniform_int_distribution<int>(l , r)(rng);
		} 
	#undef int 
}

using i64 = long long;
using ui64 = unsigned long long;

#define MASK(x) ((i64)(1) << (x))
#define BIT(mask , x) (((mask) >> (x)) & (1))
#define sz(x) (x).size()
#define all(x) (x).begin() , (x).end()

#define FOR(i ,a , b) for (int i = (a); i <= (b); ++i)
#define FORD(i , a , b) for (int i = (b); i >= (a); --i)
#define REP(i , a , b) for (int i = (a); i < (b); ++i)
#define REPD(i , a , b) for (int i = (b) - 1 ; i >= (a); --i)

template <class T> 
    void compress(vector<T> &a)
    {
        sort(a.begin() , a.end());
        a.resize(unique(a.begin() , a.end()) - a.begin());
        return;
    }
template<class T>
    void printArr(T& container , string separator = "" , string finish = "\n")
    {
        for (auto& item : container) cout << item << separator;
        cout << finish;
    }
template<class T>
    bool maximize(T &a , T b) {if (a < b) return a = b , true; else return false;}
template<class T>
    bool minimize(T &a , T b) {if (a > b) return a = b , true; else return false;}
template<class T>
    T gcd(T x , T y) {while (y) swap(y , x %= y); return x;}
template<class T>
    T lcm(T x , T y) {return (x * y) / gcd(x , y);}

//... INPUT
    void INPUT(string name)
    {
    	iostream::sync_with_stdio(false); cin.tie(0);
    	if (!fopen((name + ".inp").c_str() , "r")) return;
    	freopen((name + ".inp").c_str() , "r" , stdin);
    	freopen((name + ".out").c_str() , "w+" , stdout);
    	return;
    }

const int maxn = 1e5;
int x[maxn + 2] , y[maxn + 2] , n;

int32_t main()
{
	INPUT("main");
		cin >> n;
		vector<int> valuex,valuey;
		FOR(i,1,n)
			{
				cin >> x[i] >> y[i];
				valuex.push_back(x[i]);
				valuey.push_back(y[i]);
			}
		sort(all(valuex));
		sort(all(valuey));
		// compress(valuex);
		// compress(valuey);
		int xx = (sz(valuex) + 1) / 2 - 1;
		int yy = (sz(valuey) + 1) / 2 - 1;
		cout << valuex[xx] << ' ' << valuey[yy] << '\n';
	cerr << "\nTIME RUN : " << 1000 * clock() / CLOCKS_PER_SEC << "MS\n";
	return 0;
}

Compilation message (stderr)

bestplace.cpp: In function 'void INPUT(std::string)':
bestplace.cpp:55:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   55 |      freopen((name + ".inp").c_str() , "r" , stdin);
      |      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bestplace.cpp:56:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |      freopen((name + ".out").c_str() , "w+" , stdout);
      |      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 20 / 20
• Subtask 3: 28 / 28
• Subtask 4: 13 / 13
• Subtask 5: 17 / 17
• Subtask 6: 19 / 19