Submission #71244

#	Time	Username	Problem	Language	Result	Execution time	Memory
71244		khohko	매트 (KOI15_mat)	C++17	57 / 100	1062 ms	174812 KiB

mat

#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];

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},{-1,0}});
	b.pb({{0,0},{w+1,0}});
	for(int i=0; i<n; i++){
		cin>>k;
		if(k){
			cin>>l>>r>>d>>c;
			a.pb({{l,r},{d,c}});
		}
		else {
			cin>>l>>r>>d>>c;
			b.pb({{l,r},{w-d,c}});
		}
	}
	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<=a.size(); i++)rtl[i]=NULL;
	for(int i=0; i<=b.size(); i++)rtr[i]=NULL;
	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)){
				wl=0;
				wr=a[i].fr.fr;
				ll k=quer(0,MAX,rtr[j]);
				dp[i][j]=max(dp[i][j],k+a[i].sc.sc);

//				for(int k=0; k<i; k++){
//					if(a[k].fr.sc<=a[i].fr.fr)
//						dp[i][j]=max(dp[i][j],dp[k][j]+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)){
				wl=0;
				wr=b[j].fr.fr;
				ll k=quer(0,MAX,rtl[i]);
				dp[i][j]=max(dp[i][j],k+b[j].sc.sc);

//				for(int k=0; k<j; k++){
//					if(b[k].fr.sc<=b[j].fr.fr)
//						dp[i][j]=max(dp[i][j],dp[i][k]+b[j].sc.sc);
//				}
			}
			wi=a[i].fr.sc;
			wx=dp[i][j];
			updt(0,MAX,rtr[j]);

			wi=b[j].fr.sc;
			wx=dp[i][j];
			updt(0,MAX,rtl[i]);
			//cout<<i<<" "<<j<<" "<<dp[i][j]<<endl;

			pas=max(pas,dp[i][j]);
		}
	}
	cout<<pas;
}

Compilation message (stderr)

mat.cpp: In function 'void updt(int, int, node*&)':
mat.cpp:45:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  updt(l,l+r>>1,x->L);
         ~^~
mat.cpp:46:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  updt(l+r>>1,r,x->R);
       ~^~
mat.cpp: In function 'int quer(int, int, node*&)':
mat.cpp:53:7: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
  if(wl<=l&r-1<=wr)return x->x;
     ~~^~~
mat.cpp:54:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  return max(quer(l,l+r>>1,x->L),
                    ~^~
mat.cpp:55:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
      quer(l+r>>1,r,x->R));
           ~^~
mat.cpp: In function 'int main()':
mat.cpp:83:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<=a.size(); i++)
               ~^~~~~~~~~~
mat.cpp:84:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j<=b.size(); j++)
                ~^~~~~~~~~~
mat.cpp:86:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<=a.size(); i++)rtl[i]=NULL;
               ~^~~~~~~~~~
mat.cpp:87:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<=b.size(); i++)rtr[i]=NULL;
               ~^~~~~~~~~~
mat.cpp:90:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<a.size(); i++){
               ~^~~~~~~~~
mat.cpp:91:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j<b.size(); j++){
                ~^~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 13 / 13
• Subtask 3: 25 / 25
• Subtask 4: 11 / 11
• Subtask 5: 0 / 43