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답안 #71263

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
71263 2018-08-24T09:11:01 Z khohko 매트 (KOI15_mat) C++17
100 / 100
 657 ms 158084 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
#define ll int
#define pb push_back
#define fr first
#define sc second
#define MAX ((ll)(1e9+100))
#define MX ((ll)(1e6+100))
#define ARRS ((ll)(2e6+100))
#define HS ((ll)(1049))
#define MOD ((ll)(1000000861))
#define EP ((double)(1e-9))
#define LG 21
#define mul(a,b) a=((a)*(b))%MOD
using namespace std;

string s,t;
vector<pair<pair<ll,ll> ,pair<ll,ll> > > a;
vector<pair<pair<ll,ll> ,pair<ll,ll> > > b;
ll dp[4100][4100];
//
//struct node{
//	node *L,*R;
//	ll x;
//	node(){
//		L=R=NULL;
//		x=-MAX;
//	}
//	void updt(){
//		x=-MAX;
//		if(L)x=max(x,L->x);
//		if(R)x=max(x,R->x);
//	}
//};
//
//ll wl,wr,wi,wx;
//void updt(ll l,ll r,node *& x){
//	if(wi<l||r-1<wi)return;
//	if(!x)x=new node();
//	if(l==r-1){
//		x->x=max(x->x,wx);
//		return;
//	}
//	updt(l,l+r>>1,x->L);
//	updt(l+r>>1,r,x->R);
//	x->updt();
//}
//
//ll quer(ll l,ll r,node *& x){
//	if(wr<l||r-1<wl)return -MAX;
//	if(!x)return -MAX;
//	if(wl<=l&r-1<=wr)return x->x;
//	return max(quer(l,l+r>>1,x->L),
//					quer(l+r>>1,r,x->R));
//}
//
//node *rtl[4000];
//node *rtr[4000];

ll fw[2][3010][6020];
//ll fw2[3010][6020];

void add(ll wa,ll w,ll i,ll x){
	i++;
	while(i<=6010){
		fw[wa][w][i]=max(fw[wa][w][i],x);
		i+=i&-i;
	}
}
ll quer(ll wa,ll w,ll i){
	ll p=-MAX;
	i++;
	while(i>1){
		p=max(p,fw[wa][w][i]);
		i-=i&-i;
	}
	return p;
}

map<ll,ll> mp;

int main(){
	#ifdef KHOKHO
		freopen("in.in","r",stdin);
		freopen("out.out","w",stdout);
	#endif
	ll n,w,l,r,d,k,c;
	cin>>n>>w;
	a.pb({{0,0},{0,0}});
	b.pb({{0,0},{w,0}});
	mp[0]=1;
	mp[w]=1;
	for(int i=0; i<n; i++){
		cin>>k;
		if(k){
			cin>>l>>r>>d>>c;
			mp[l]=1;
			mp[r]=1;
			a.pb({{l,r},{d,c}});
		}
		else {
			cin>>l>>r>>d>>c;
			mp[l]=1;
			mp[r]=1;
			b.pb({{l,r},{w-d,c}});
		}
	}
	ll C=1;
	for(auto x:mp)
		mp[x.fr]=C++;
	//C+=100;
	C+=2;
	for(auto &x:a){
		x.fr.fr=mp[x.fr.fr];
		x.fr.sc=mp[x.fr.sc];
	}
	for(auto &x:b){
		x.fr.fr=mp[x.fr.fr];
		x.fr.sc=mp[x.fr.sc];
	}

	sort(a.begin(),a.end());
	sort(b.begin(),b.end());
	for(int i=0; i<=a.size(); i++)
		for(int j=0; j<=b.size(); j++)
			dp[i][j]=-MAX;

	for(int i=0; i<=3005; i++){
		for(int j=0; j<=C; j++){
			fw[0][i][j]=-MAX;
			fw[1][i][j]=-MAX;
		}
	}

	dp[0][0]=0;
	ll pas=0;
	for(int i=0; i<a.size(); i++){
		for(int j=0; j<b.size(); j++){
			if(b[j].fr.fr<=a[i].fr.fr&&(a[i].fr.fr>=b[j].fr.sc||a[i].sc.fr<=b[j].sc.fr)){
				ll k=quer(1,j,a[i].fr.fr);
				dp[i][j]=max(dp[i][j],k+a[i].sc.sc);
			}

			if(b[j].fr.fr>=a[i].fr.fr&&(b[j].fr.fr>=a[i].fr.sc||a[i].sc.fr<=b[j].sc.fr)){
				ll k=quer(0,i,b[j].fr.fr);
				dp[i][j]=max(dp[i][j],k+b[j].sc.sc);
			}
			add(1,j,a[i].fr.sc,dp[i][j]);
			add(0,i,b[j].fr.sc,dp[i][j]);
			pas=max(pas,dp[i][j]);
		}
	}
	cout<<pas;
}

Compilation message

mat.cpp: In function 'int main()':
mat.cpp:125:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<=a.size(); i++)
               ~^~~~~~~~~~
mat.cpp:126:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j<=b.size(); j++)
                ~^~~~~~~~~~
mat.cpp:138:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<a.size(); i++){
               ~^~~~~~~~~
mat.cpp:139:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j<b.size(); j++){
                ~^~~~~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 25336 KB Output is correct
2 Correct 20 ms 25448 KB Output is correct
3 Correct 21 ms 25448 KB Output is correct
4 Correct 20 ms 25448 KB Output is correct
5 Correct 22 ms 25508 KB Output is correct

Subtask #2
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 25508 KB Output is correct
2 Correct 21 ms 25508 KB Output is correct
3 Correct 18 ms 25508 KB Output is correct
4 Correct 21 ms 25508 KB Output is correct
5 Correct 21 ms 25632 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 37056 KB Output is correct
2 Correct 33 ms 37056 KB Output is correct
3 Correct 31 ms 37056 KB Output is correct
4 Correct 26 ms 37056 KB Output is correct
5 Correct 30 ms 37056 KB Output is correct

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 127 ms 142572 KB Output is correct
2 Correct 143 ms 142572 KB Output is correct
3 Correct 128 ms 142572 KB Output is correct
4 Correct 130 ms 142572 KB Output is correct
5 Correct 71 ms 142572 KB Output is correct

Subtask #5
43.0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 579 ms 157688 KB Output is correct
2 Correct 657 ms 157688 KB Output is correct
3 Correct 611 ms 157688 KB Output is correct
4 Correct 634 ms 157876 KB Output is correct
5 Correct 461 ms 157876 KB Output is correct
6 Correct 361 ms 158084 KB Output is correct
7 Correct 625 ms 158084 KB Output is correct
8 Correct 393 ms 158084 KB Output is correct
9 Correct 473 ms 158084 KB Output is correct
10 Correct 418 ms 158084 KB Output is correct