oj.uz

답안 #393420

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
393420 2021-04-23T12:01:02 Z vanic UFO (IZhO14_ufo) C++14
100 / 100
 922 ms 114732 KB 
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <vector>
#include <set>
#include <array>

using namespace std;

const int maxn=1e6+5;

typedef long long ll;

int n, m, r, k, p;
vector < int > poz;


struct tournament{
	vector < int > t;
	int pot;
	tournament(int sz){
		pot=sz/2;
		while(sz--){
			t.push_back(0);
		}
	}
	void build(){
		for(int x=pot-1; x>0; x--){
			t[x]=max(t[x*2], t[x*2+1]);
		}
	}
	void update(int x, int val){
		t[x]+=val;
		for(x>>=1; x>0; x>>=1){
			t[x]=max(t[x*2], t[x*2+1]);
		}
	}
	int query1(int L, int D, int x, int val, int puc){
		if(x>=pot){
			poz.push_back(x-pot);
			return puc-1;
		}
		if(t[x*2]>=val){
			puc=query1(L, (L+D)/2, x*2, val, puc);
			if(!puc){
				return 0;
			}
		}
		if(t[x*2+1]>=val){
			puc=query1((L+D)/2+1, D, x*2+1, val, puc);
		}
		return puc;
	}
	int query2(int L, int D, int x, int val, int puc){
		if(x>=pot){
			poz.push_back(x-pot);
			return puc-1;
		}
		if(t[x*2+1]>=val){
			puc=query2((L+D)/2+1, D, x*2+1, val, puc);
			if(!puc){
				return 0;
			}
		}
		if(t[x*2]>=val){
			puc=query2(L, (L+D)/2, x*2, val, puc);
		}
		return puc;
	}
};


vector < tournament > R, S;
vector < vector < int > > l;
vector < vector < ll > > pref;
vector < int > vi;
vector < ll > vi1;

void scan(int &a){
	a=0;
	char c=getchar();
	while(c<'0' || c>'9'){
		c=getchar();
	}
	while(c>='0' && c<='9'){
		a*=10;
		a+=c-'0';
		c=getchar();
	}
}


int main(){
	scan(n);
	scan(m);
	scan(r);
	scan(k);
	scan(p);
	int a;
	int pot1=1;
	while(pot1<n){
		pot1*=2;
	}
	tournament T1(pot1*2);
	for(int i=0; i<m; i++){
		S.push_back(T1);
	}
	int pot2=1;
	while(pot2<m){
		pot2*=2;
	}
	tournament T2(pot2*2);
	for(int i=0; i<n; i++){
		R.push_back(T2);
	}
	vi1.resize(m+1, 0);
	for(int i=0; i<n; i++){
		for(int j=0; j<m; j++){
			scan(a);
			R[i].t[j+pot2]=a;
			S[j].t[i+pot1]=a;
			vi.push_back(a);
		}
		pref.push_back(vi1);
		l.push_back(vi);
		vi.clear();
	}
	for(int i=0; i<n; i++){
		R[i].build();
	}
	for(int i=0; i<m; i++){
		S[i].build();
	}
	pref.push_back(vi1);
	char c;
	int b;
	for(int i=0; i<k; i++){
		do{
			c=getchar();
		}while(c<'A' || c>'Z');
		scan(a);
		scan(b);
		a--;
		if(c=='W'){
			R[a].query1(0, pot2-1, 1, b, r);
			for(int j=0; j<(int)poz.size(); j++){
				R[a].update(poz[j]+pot2, -1);
				S[poz[j]].update(a+pot1, -1);
				l[a][poz[j]]--;
			}
		}
		else if(c=='N'){
			S[a].query1(0, pot1-1, 1, b, r);
			for(int j=0; j<(int)poz.size(); j++){
				R[poz[j]].update(a+pot2, -1);
				S[a].update(poz[j]+pot1, -1);
				l[poz[j]][a]--;
			}
		}
		else if(c=='E'){
			R[a].query2(0, pot2-1, 1, b, r);
			for(int j=0; j<(int)poz.size(); j++){
				R[a].update(poz[j]+pot2, -1);
				S[poz[j]].update(a+pot1, -1);
				l[a][poz[j]]--;
			}
		}
		else{
			S[a].query2(0, pot1-1, 1, b, r);
			for(int j=0; j<(int)poz.size(); j++){
				R[poz[j]].update(a+pot2, -1);
				S[a].update(poz[j]+pot1, -1);
				l[poz[j]][a]--;
			}
		}
		poz.clear();
//		printf("dalje\n");
	}
//	printf("kraj\n");
	for(int i=0; i<n; i++){
		for(int j=0; j<m; j++){
			pref[i+1][j+1]=pref[i][j+1]+pref[i+1][j]-pref[i][j]+l[i][j];
		}
	}
	ll maksi=0;
	for(int i=p; i<=n; i++){
		for(int j=p; j<=m; j++){
			maksi=max(maksi, pref[i][j]-pref[i-p][j]-pref[i][j-p]+pref[i-p][j-p]);
		}
	}
	printf("%lld\n", maksi);
	return 0;
}

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 7 ms 624 KB Output is correct
5 Correct 48 ms 2824 KB Output is correct
6 Correct 90 ms 17404 KB Output is correct
7 Correct 107 ms 45244 KB Output is correct
8 Correct 76 ms 43064 KB Output is correct
9 Correct 207 ms 40216 KB Output is correct
10 Correct 283 ms 44472 KB Output is correct
11 Correct 165 ms 36772 KB Output is correct
12 Correct 284 ms 44468 KB Output is correct
13 Correct 359 ms 49672 KB Output is correct
14 Correct 331 ms 36716 KB Output is correct
15 Correct 414 ms 44976 KB Output is correct
16 Correct 83 ms 36780 KB Output is correct
17 Correct 645 ms 50868 KB Output is correct
18 Correct 91 ms 44844 KB Output is correct
19 Correct 160 ms 51556 KB Output is correct
20 Correct 922 ms 114732 KB Output is correct