Submission #1094022

#	Time	Username	Problem	Language	Result	Execution time	Memory
1094022		8pete8	Two Dishes (JOI19_dishes)	C++17	74 / 100	6610 ms	197100 KiB

dishes

#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<cassert>
#include<unordered_map>
#include <queue>
#include <cstdint>
#include<cstring>
#include<limits.h>
#include<cmath>
#include<set>
#include<algorithm>
#include <iomanip>
#include<numeric>
#include<bitset>
using namespace std;
#define ll long long
#define f first
#define s second
#define pii pair<int,int>
#define ppii pair<int,pii>
#define vi vector<int>
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F(n) for(int i=0;i<n;i++)
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#pragma GCC optimize ("03,unroll-lopps")
#define int long long
#define double long double
using namespace std;
const int mod=998244353,mxn=1e6+5,inf=1e18,minf=-1e18,lg=30;
//#undef int
int n,k,m,q;
void setIO(string name){
	ios_base::sync_with_stdio(0); cin.tie(0);		
	freopen((name+".in").c_str(),"r",stdin);		
	freopen((name+".out").c_str(),"w",stdout);	
}
pair<int,pii> v1[mxn+10],v2[mxn+10];
//time,before,point
int gap[mxn+10],dp[mxn+10],suf[mxn+10];
struct seg{
    int v[4*mxn+10],lazy1[4*mxn+10],lazy2[4*mxn+10];
    void init(){for(int i=0;i<=4*(n+1);i++)lazy2[i]=inf;}
    void push(int l,int r,int pos){
        if(lazy2[pos]!=inf)v[pos]=lazy2[pos];
        v[pos]+=lazy1[pos];
        if(l!=r){
            if(lazy2[pos]!=inf)lazy1[pos*2+1]=0,lazy1[pos*2]=0;
            lazy1[pos*2+1]+=lazy1[pos];
            lazy1[pos*2]+=lazy1[pos];
            if(lazy2[pos]!=inf){
                lazy2[pos*2+1]=lazy2[pos];
                lazy2[pos*2]=lazy2[pos];
            }
        }
        lazy2[pos]=inf;
        lazy1[pos]=0;
    }
    void updateadd(int l,int r,int ql,int qr,int val,int pos){
        push(l,r,pos);
        if(l>qr||r<ql)return;
        if(l>=ql&&r<=qr){
            lazy1[pos]+=val;
            push(l,r,pos);
            return;
        }
        int mid=l+(r-l)/2;
        updateadd(l,mid,ql,qr,val,pos*2);
        updateadd(mid+1,r,ql,qr,val,pos*2+1);
        v[pos]=max(v[pos*2],v[pos*2+1]);
    }
    void updateset(int l,int r,int ql,int qr,int val,int pos){
        push(l,r,pos);
        if(l>qr||r<ql)return;
        if(l>=ql&&r<=qr){
            lazy2[pos]=val;
            push(l,r,pos);
            return;
        }
        int mid=l+(r-l)/2;
        updateset(l,mid,ql,qr,val,pos*2);
        updateset(mid+1,r,ql,qr,val,pos*2+1);
        v[pos]=max(v[pos*2],v[pos*2+1]);
    }
    int qry(int l,int r,int qpos,int pos){
        push(l,r,pos);
        if(l==r)return v[pos];
        int mid=l+(r-l)/2;
        if(qpos<=mid)return qry(l,mid,qpos,pos*2);
        return qry(mid+1,r,qpos,pos*2+1);
    }
}t;
int getbound(int x,int add){
	int l=0,r=n,pos=-1;
	while(l<=r){
		int mid=l+(r-l)/2;
		if(v1[mid].f+add<=x)l=mid+1,pos=max(pos,mid);
		else r=mid-1;
	}
	return pos;
}
int getpos(int x,int st){
    int l=st,r=n,pos=-1;
    while(l<=r){
        int mid=l+(r-l)/2;
        if(t.qry(0,n,mid,1)<x)l=mid+1,pos=max(pos,mid);
        else r=mid-1;
    }
    return pos;
}
int32_t main(){
    fastio
    //n^2 can use lazy seg to op
	cin>>n>>m;
	for(int i=1;i<=n;i++){
		cin>>v1[i].f>>v1[i].s.f>>v1[i].s.s;
		v1[i].f+=v1[i-1].f;
	}
	for(int i=1;i<=m;i++){
		cin>>v2[i].f>>v2[i].s.f>>v2[i].s.s;
		v2[i].f+=v2[i-1].f;
	}
	int ans1=0,ans2=0;
	vector<pii>gap;
	for(int i=1;i<=n;i++){
		if(v1[i].f<=v1[i].s.f){
			gap.pb({v1[i].s.f-v1[i].f,i});
			ans1+=v1[i].s.s;
		}
	}
    t.init();
	sort(all(gap));
	int cur=0;
	for(int j=1;j<=m;j++){
		int x=getbound(v2[j].s.f,v2[j].f);
        if(x!=-1)t.updateadd(0,n,0,x,v2[j].s.s,1);
		while(cur<gap.size()&&gap[cur].f<v2[j].f){
            t.updateadd(0,n,0,gap[cur].s-1,-v1[gap[cur].s].s.s,1);
			cur++;
		}
        t.push(0,n,1);
        ans2=max(ans2,t.v[1]);
        int bruh=t.qry(0,n,x,1);
        int where=getpos(bruh,x+1);
        if(where!=-1)t.updateset(0,n,x+1,where,bruh,1);
	}
    cout<<ans1+ans2<<'\n';
}
/*
 
*/

Compilation message (stderr)

dishes.cpp:32:40: warning: bad option '-funroll-lopps' to pragma 'optimize' [-Wpragmas]
   32 | #pragma GCC optimize ("03,unroll-lopps")
      |                                        ^
dishes.cpp:39:23: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   39 | void setIO(string name){
      |                       ^
dishes.cpp:49:15: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   49 |     void init(){for(int i=0;i<=4*(n+1);i++)lazy2[i]=inf;}
      |               ^
dishes.cpp:50:34: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   50 |     void push(int l,int r,int pos){
      |                                  ^
dishes.cpp:65:61: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   65 |     void updateadd(int l,int r,int ql,int qr,int val,int pos){
      |                                                             ^
dishes.cpp:78:61: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   78 |     void updateset(int l,int r,int ql,int qr,int val,int pos){
      |                                                             ^
dishes.cpp:91:41: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   91 |     int qry(int l,int r,int qpos,int pos){
      |                                         ^
dishes.cpp:99:27: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   99 | int getbound(int x,int add){
      |                           ^
dishes.cpp:108:24: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
  108 | int getpos(int x,int st){
      |                        ^
dishes.cpp:117:14: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
  117 | int32_t main(){
      |              ^
dishes.cpp: In function 'int32_t main()':
dishes.cpp:143:12: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  143 |   while(cur<gap.size()&&gap[cur].f<v2[j].f){
      |         ~~~^~~~~~~~~~~
dishes.cpp: In function 'void setIO(std::string)':
dishes.cpp:41:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |  freopen((name+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dishes.cpp:42:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |  freopen((name+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 3 / 3
• Subtask 3: 7 / 7
• Subtask 4: 39 / 39
• Subtask 5: 11 / 11
• Subtask 6: 9 / 9
• Subtask 7: 0 / 17
• Subtask 8: 0 / 9