제출 #527872

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
527872		Koosha_mv	Pinball (JOI14_pinball)	C++14	100 / 100	198 ms	52008 KiB

pinball

#include <bits/stdc++.h>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,v.size()) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<(x.F)<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define Add(x,y) x=(x+y)%mod
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first
#define int ll

const int N=1e6+99,Max=4e5,inf=1e15;

int m,n,ans=inf,L[N],R[N],seg[2][N];
vector<int> Q[N];

void upd(int x,int val,int s){
	x+=Max;
	while(x) minm(seg[s][x],val),x/=2;
}
int get(int l,int r,int s){
	int res=inf;
	for(l+=Max,r+=Max;l<r;l>>=1,r>>=1){
		if(l&1) minm(res,seg[s][l++]);
		if(r&1) minm(res,seg[s][--r]);
	}
	return res;
}
main(){
	ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
	f(s,0,2) f(i,0,N) seg[s][i]=inf;
	vector<int> vec;
	cin>>m>>n;
	f(i,1,m+1){
		int x;
		f(j,0,3){ cin>>x; Q[i].pb(x); vec.pb(x); }
		cin>>x;
		Q[i].pb(x);
	}
	vec.pb(1);
	vec.pb(n);
	sort(all(vec));
	vec.resize(unique(vec.begin(),vec.end())-vec.begin());
	f(i,1,m+1){
		int l,r,p,cost;
		cost=Q[i][3];
		l=lower_bound(all(vec),Q[i][0])-vec.begin();
		r=lower_bound(all(vec),Q[i][1])-vec.begin();
		p=lower_bound(all(vec),Q[i][2])-vec.begin();
		//cout<<l<<" "<<r<<" "<<p<<endl;
		if(l==0){
			L[i]=0;
		}
		else{
			L[i]=get(l,r+1,0);
		}
		if(r==vec.size()-1){
			R[i]=0;
		}
		else{
			R[i]=get(l,r+1,1);
		}
		L[i]+=cost;
		R[i]+=cost;
		upd(p,L[i],0);
		upd(p,R[i],1);
		minm(ans,L[i]+R[i]-cost);
	}
	cout<<(ans==inf ? -1 : ans);
}

컴파일 시 표준 에러 (stderr) 메시지

pinball.cpp:41:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   41 | main(){
      | ^~~~
pinball.cpp: In function 'int main()':
pinball.cpp:69:7: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |   if(r==vec.size()-1){
      |      ~^~~~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 18 / 18
• Subtask 3: 22 / 22
• Subtask 4: 49 / 49