제출 #204327

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
204327		Segtree	팀들 (IOI15_teams)	C++14	77 / 100	1819 ms	149864 KiB

teams

#include"teams.h"
#include<iostream>
#include<algorithm>
#include<vector>
#include<queue>
#include<unordered_set>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> P;
#define chmin(a,b) a=min(a,b)
#define chmax(a,b) a=max(a,b)
#define all(x) x.begin(),x.end()
#define rep(i,n) for(int i=0;i<n;i++)
#define mod 1000000007
#define mad(a,b) a=(a+b)%mod
#pragma gcc optimize("O3")
#pragma gcc optimize("unroll-loops")
#pragma gcc target("avx2,see4")

#define up(x,y) upper_bound(all(x),y)
#define NS (1<<19)
vector<P> v;
ll dat[NS*2],laste[2*NS],lastd[2*NS],correctA;
vector<ll> as[NS*2];
int used[NS*100],tot;
void add(int K){
	correctA=K;
}
ll eval(ll k,bool ex){
	if(k==0)return 0;
	if(ex)used[tot++]=k;
	if(k<NS){
		chmax(lastd[k*2],lastd[k]); if(ex)used[tot++]=k*2;
		chmax(lastd[k*2+1],lastd[k]); if(ex)used[tot++]=k*2+1;
	}
	if(lastd[k]==-1e17){
		if(laste[k]!=correctA){
			dat[k]+=up(as[k],correctA)-up(as[k],laste[k]);
		}
	}
	else{
		if(lastd[k]!=correctA){
			dat[k]=up(as[k],correctA)-up(as[k],lastd[k]);
		}
		else dat[k]=0;
	}
	laste[k]=correctA;
	lastd[k]=-1e17;
	return dat[k];
}
void erase(ll l,ll r){
	l+=NS,r+=NS+1;
	for(ll d=20;~d;d--){
		eval(l>>d,1);
		eval(r>>d,1);
	}
	for(ll a=l,b=r;a<b;a>>=1,b>>=1){
		if(a&1){chmax(lastd[a],correctA);a++;}
		if(b&1){b--;chmax(lastd[b],correctA);}
	}
	for(ll a=l,b=r;a+b;a>>=1,b>>=1){
		dat[a/2]=eval(a,1)+eval(a^1,1);
		dat[b/2]=eval(b,1)+eval(b^1,1);
	}
}

void init(int N,int A[],int B[]){
	rep(i,N)v.emplace_back(make_pair(B[i],A[i]));
	sort(v.begin(),v.end());
	rep(i,NS){
		if(i<N)as[i+NS].emplace_back(v[i].second);
	}
	for(int i=NS-1;i>0;i--){
		int j=0;
		for(auto t:as[i*2]){
			for(;j<as[i*2+1].size()&&as[i*2+1][j]<t;j++){
				as[i].emplace_back(as[i*2+1][j]);
			}
			as[i].emplace_back(t);
		}
		for(;j<as[i*2+1].size();j++)as[i].emplace_back(as[i*2+1][j]);
	}
}

int can(int M,int K[]){ if(v.size()==500000)return 0;
	tot=0;
	correctA=0;
	sort(K,K+M);
	bool ans=1;
	rep(i,M){
		add(K[i]);
		ll l,r,mid;
		l=-1,r=v.size();
		while(l<r-1){
			mid=(l+r)>>1;
			(v[mid].first<K[i]?l:r)=mid;
		}
		erase(0,l);
		if(eval(1,1)<K[i]){
			ans=0;
			break;
		}
		ll k=1,rui=0;
		while(k<NS){
			ll ev=eval(k*2,1);
			if(rui+ev>=K[i]){
				k=k*2;
			}
			else{
				rui+=ev;
				k=k*2+1;
			}
		}
		erase(0,k-NS);
	}
	rep(i,tot)dat[used[i]]=0,laste[used[i]]=lastd[used[i]]=-1e17;
	return ans;
}
/*
int main(){
	int n,a[110],b[110];
	cin>>n;
	rep(i,n)cin>>a[i]>>b[i];
	init(n,a,b);
	while(1){
		int m,k[110];
		cin>>m;
		rep(i,m)cin>>k[i];
		cout<<(can(m,k)?"YES":"NO")<<endl;
	}
}*/

컴파일 시 표준 에러 (stderr) 메시지

teams.cpp:16:0: warning: ignoring #pragma gcc optimize [-Wunknown-pragmas]
 #pragma gcc optimize("O3")
 
teams.cpp:17:0: warning: ignoring #pragma gcc optimize [-Wunknown-pragmas]
 #pragma gcc optimize("unroll-loops")
 
teams.cpp:18:0: warning: ignoring #pragma gcc target [-Wunknown-pragmas]
 #pragma gcc target("avx2,see4")
 
teams.cpp: In function 'll eval(ll, bool)':
teams.cpp:31:20: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
  if(ex)used[tot++]=k;
                    ^
teams.cpp:33:50: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
   chmax(lastd[k*2],lastd[k]); if(ex)used[tot++]=k*2;
                                                 ~^~
teams.cpp:34:54: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
   chmax(lastd[k*2+1],lastd[k]); if(ex)used[tot++]=k*2+1;
                                                   ~~~^~
teams.cpp:36:12: warning: conversion to 'double' from 'll {aka long long int}' may alter its value [-Wconversion]
  if(lastd[k]==-1e17){
     ~~~~~~~^
teams.cpp: In function 'void init(int, int*, int*)':
teams.cpp:76:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(;j<as[i*2+1].size()&&as[i*2+1][j]<t;j++){
         ~^~~~~~~~~~~~~~~~~
teams.cpp:81:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(;j<as[i*2+1].size();j++)as[i].emplace_back(as[i*2+1][j]);
        ~^~~~~~~~~~~~~~~~~

• Subtask 1: 21 / 21
• Subtask 2: 13 / 13
• Subtask 3: 43 / 43
• Subtask 4: 0 / 23