제출 #149411

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
149411	2019-09-01 06:25:54	Cafe Maru (#200)	Bulb Game (FXCUP4_bulb)	C++17	100 / 100	144 ms	24540 KiB

bulb

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#include "bulb.h"
const int RED = -1;
const int BLUE = -2;
using vi = std::vector<int>;
const int NMAX = 300000;
bool c[NMAX*4+3];
void SetTrue(int nl,int nr,int l,int r,int node){
    if(l<=nl&&nr<=r){
        c[node]=true; return;
    }
    else if(nr<l||r<nl) return;
    int mid = (nl+nr)/2;
    SetTrue(nl,mid,l,r,node*2+1);
    SetTrue(mid+1,nr,l,r,node*2+2);
}
int N;
void SetTrue(int l,int r){if(l<=r) SetTrue(0,N-1,l,r,0);}
bool ReadBool(int nl,int nr,int x,int node){
    if(c[node]) return true;
    if(nl==nr) return c[node];
    int mid = (nl+nr)/2;
    if(x<=mid) return ReadBool(nl,mid,x,node*2+1);
    else return ReadBool(mid+1,nr,x,node*2+2);
}
bool ReadBool(int x){return ReadBool(0,N-1,x,0);}
 
 
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컴파일 시 표준 에러 (stderr) 메시지

bulb.cpp: In function 'void FindOne()':
bulb.cpp:73:9: warning: unused variable 'st' [-Wunused-variable]
     int st = 0;
         ^~

• Subtask 1: 11 / 11
• Subtask 2: 25 / 25
• Subtask 3: 64 / 64