답안 #887517

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
887517 2023-12-14T16:56:46 Z nnhzzz 사다리꼴 (balkan11_trapezoid) C++14
100 / 100
80 ms 15864 KB
/* [Author: Nguyen Ngoc Hung] - From THPT Ngo Gia Tu with Love */

#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <exception>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <locale>
#include <map>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <set>
#include <unordered_set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <utility>
#include <valarray>
#include <vector>
#include <cstring>
#include <unordered_map>
#include <cmath>
#include <array>
#include <cassert>
#include <random>
#include <chrono>

using namespace std;

#define        __nnhzzz__  signed main()
#define          BIT(i,j)  (((i)>>(j))&1LL)
#define           MASK(i)  (1LL<<(i))
#define            ALL(x)  (x).begin(),(x).end()
#define             SZ(x)  (int)(x).size()
#define                fi  first
#define                se  second
#define                ll  long long
#define                ld  long double
#define                vi  vector<int>
#define               vvi  vector<vi>
#define              vvvi  vector<vvi>
#define               pii  pair<int,int>
#define              vpii  vector<pii>
#define             vvpii  vector<vpii>
#define REPDIS(i,be,en,j)  for(int i = (be); i<=(en); i+=j)
#define     REPD(i,be,en)  for(int i = (be); i>=(en); i--)
#define      REP(i,be,en)  for(int i = (be); i<=(en); i++)
#define              endl  "\n"
#define                MP  make_pair
// #define               int  ll

//-----------------------------------------------------------------------------------------------//
int readInt(){
    char c;
    do{ c = getchar(); }while(c!='-' && !isdigit(c));
    bool neg = (c=='-');
    int res = neg?0:c-'0';
    while(isdigit(c=getchar())) res = (res<<3)+(res<<1)+(c-'0');
    return neg?-res:res;
}
//------------------------------------------------------------------------------------------------//
const  ll   LINF = 1e18;
const int    INF = 1e9;
const int    LOG = 20;
const int   MAXN = 5e5+7;
const int      N = 1e2+3;
const int    MOD = 30013;
const int   BASE = 1e5;
const  ld    EPS = 1e-9;
const  ld     PI = acos(-1);
const int OFFSET = 1e3;
//------------------------------------------------------------------------------------------------//
template<typename T1, typename T2> bool mini(T1 &a, T2 b){if(a>b){a=b;return true;}return false;}
template<typename T1, typename T2> bool maxi(T1 &a, T2 b){if(a<b){a=b;return true;}return false;}
template<typename T> T gcd(T a, T b) { while(b) { a %= b; swap(a,b); } return a; }
template<typename T> T lcm(T a, T b) { return a/gcd(a,b)*b; }
//------------------------------------------------------------------------------------------------//

/*
----------------------------------------------------------------
    END OF TEMPLATE
----------------------------------------------------------------
    Nguyen Ngoc Hung - nnhzzz
    Training for VOI24 gold medal
----------------------------------------------------------------
*/

struct Node{
	int x,y,u,v;

	bool operator < (const Node &other) const {
		return x<other.x;
	}
};

struct FENWICK_TREE{
    vi f;
    int n;

    void update(int id, int val){
        for(; id<=n; id+=id&-id){
            f[id] += val;
        }
    }

    int get(int id){
        int res = 0;
        for(; id>0; id-=id&-id){
            res += f[id];
        }
        return res;
    }

    int get(int l, int r){
        return get(r)-get(l-1);
    }

    FENWICK_TREE(int _):n(_){
        f.resize(n+1);
    }
};

Node a[MAXN];
pii dp[MAXN];
int n;

namespace sub1{
	void solve(){
		int res1 = 0,res2 = 0;
		REP(i,1,n){
			dp[i] = MP(1,1);
			int dem = 0;
			REP(j,1,i-1){
				if(a[i].x>a[j].y && a[i].u>a[j].v){
					++dem;
					if(dp[j].fi>=dp[i].fi) dp[i] = MP(dp[j].fi+1,dp[j].se);
					else if(dp[i].fi==dp[j].fi+1) dp[i].se = (dp[i].se+dp[j].se)%MOD;
				}
			}
			maxi(res1,dp[i].fi);
			cerr << dem;
		}
		REP(i,1,n) if(dp[i].fi==res1) res2 = (res2+dp[i].se)%MOD;
		cout << res1 << " " << res2;
	}
}

namespace sub2{
	struct events{
		int fi,se,op,id;

		bool operator < (const events &other) const {
			return fi<other.fi;
		}
	};
	int b[MAXN];
	pii f[MAXN];
	const int BASE = MAXN-7;

	pii combine(const pii &u, const pii &v){
		if(u.fi<v.fi) return v;
		if(v.fi<u.fi) return u;
		return MP(u.fi,(u.se+v.se)%MOD);
	}

	void update(int id, pii val){
		for(; id<=BASE; id+=id&-id) f[id] = combine(f[id],val);
	}

	pii get(int id){
		pii res = MP(0,1);
		for(; id>0; id-=id&-id) res = combine(res,f[id]);
		return res;
	}

	void solve(){
		vector<events> ev;
		vi cur;
		REP(i,1,n){
			ev.push_back({a[i].x,a[i].u,-1,i});
			ev.push_back({a[i].y,a[i].v,1,i});
			cur.push_back(a[i].u); cur.push_back(a[i].v);
		}
		sort(ALL(cur)); cur.resize(unique(ALL(cur))-cur.begin());
		sort(ALL(ev));
		pii res = MP(1,1);
		REP(i,0,SZ(ev)-1){
			int fi = ev[i].fi,se = ev[i].se,op = ev[i].op,id = ev[i].id;
			int pos = upper_bound(ALL(cur),se)-cur.begin();
			if(op==-1){
				dp[id] = get(pos);
				++dp[id].fi;
				res = combine(res,dp[id]);
			}else{
				update(pos,dp[id]);
			}
		}
		cout << res.fi << " " << res.se;
	}

	// void solve(){
	// 	pii res = MP(1,1);
	// 	vpii cur; vi comp;
	// 	REP(i,1,n){
	// 		cur.push_back(MP(a[i].x,a[i].u));
	// 		// cur.push_back(MP(a[i].y,a[i].v));
	// 		comp.push_back(a[i].v);
	// 		comp.push_back(a[i].u);
	// 	}
	// 	sort(ALL(cur)); cur.resize(unique(ALL(cur))-cur.begin());
	// 	sort(ALL(comp)); comp.resize(unique(ALL(comp))-comp.begin());
	// 	FENWICK_TREE fen(MAXN-1);
	// 	priority_queue<pii,vpii,greater<pii>> heap;
	// 	REP(i,1,n){
	// 		heap.push(MP(a[i].y,a[i].v));
	// 		while(SZ(heap)!=0 && heap.top().fi<a[i].x){
	// 			int pos = upper_bound(ALL(comp),heap.top().se)-comp.begin();
	// 			fen.update(pos,1);
	// 			heap.pop();
	// 		}
	// 		int pos = upper_bound(ALL(comp),a[i].u)-comp.begin();
	// 		b[i] = fen.get(pos);
	// 	}
	// 	REP(i,1,n){
	// 		int l = b[i];
	// 		int r = upper_bound(ALL(cur),MP(a[i].x,a[i].u))-cur.begin();
	// 		dp[i] = get(l-1); ++dp[i].fi;
	// 		update(r,dp[i]);
	// 		cout << dp[i].fi << " " << dp[i].se << endl;
	// 		maxi(res,dp[i]);
	// 	}
	// 	res = get(2*n);
	// 	cout << res.fi << " " << res.se;
	// }
}

void solve(){
	cin >> n;
	REP(i,1,n) cin >> a[i].x >> a[i].y >> a[i].u >> a[i].v;
	sort(a+1,a+n+1);
	sub2::solve(); return ;
	if(n<=5000){
		sub1::solve();
		return ;
	}
	sub2::solve();
}

__nnhzzz__{
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    #define task "test"
    if(fopen(task".inp","r")){
        freopen(task".inp","r",stdin);
        freopen(task".out","w",stdout);
    }
    #define task1 "nnhzzz"
    if(fopen(task1".inp","r")){
        freopen(task1".inp","r",stdin);
        freopen(task1".out","w",stdout);
    }

    int test = 1;

    while(test--){
      solve();
    }
    cerr << "\nTime elapsed: " << 1000*clock()/CLOCKS_PER_SEC << "ms\n";
    return 0;
}

/**  /\_/\
 *  (= ._.)
 *  / >TL \>AC
**/

Compilation message

trapezoid.cpp: In function 'void sub2::solve()':
trapezoid.cpp:48:28: warning: unused variable 'first' [-Wunused-variable]
   48 | #define                fi  first
      |                            ^~~~~
trapezoid.cpp:201:8: note: in expansion of macro 'fi'
  201 |    int fi = ev[i].fi,se = ev[i].se,op = ev[i].op,id = ev[i].id;
      |        ^~
trapezoid.cpp: In function 'int main()':
trapezoid.cpp:267:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  267 |         freopen(task".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
trapezoid.cpp:268:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  268 |         freopen(task".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
trapezoid.cpp:272:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  272 |         freopen(task1".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
trapezoid.cpp:273:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  273 |         freopen(task1".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 2 ms 4696 KB Output is correct
5 Correct 2 ms 4700 KB Output is correct
6 Correct 3 ms 4860 KB Output is correct
7 Correct 4 ms 5204 KB Output is correct
8 Correct 4 ms 4956 KB Output is correct
9 Correct 8 ms 5404 KB Output is correct
10 Correct 14 ms 6420 KB Output is correct
11 Correct 19 ms 6556 KB Output is correct
12 Correct 40 ms 10880 KB Output is correct
13 Correct 48 ms 13316 KB Output is correct
14 Correct 58 ms 15328 KB Output is correct
15 Correct 63 ms 15864 KB Output is correct
16 Correct 68 ms 15228 KB Output is correct
17 Correct 73 ms 15356 KB Output is correct
18 Correct 62 ms 15616 KB Output is correct
19 Correct 73 ms 14720 KB Output is correct
20 Correct 80 ms 15096 KB Output is correct