제출 #471148

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
471148		MohammadAghil	원숭이와 사과 나무 (IZhO12_apple)	C++17	0 / 100	128 ms	262148 KiB

apple

#include <bits/stdc++.h> 
using namespace std;
typedef long long ll;
#define rep(i,l,r) for(int i = (l); i < r; i++)
#define per(i,r,l) for(int i = (r); i >= l; i--)
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x).size()
#define pb push_back
#define ff first
#define ss second 
 
const ll mod = 1e9 + 7, maxn = 123456 + 5, inf = 1e9 + 5;

struct node{
    ll lx, rx, sum = 0, lazy = 0, l = 0, r = 0;
    node(){}
    node(ll sum, ll lazy, ll lx, ll rx, ll l = 0, ll r = 0):
        sum(sum), lazy(lazy), lx(lx), rx(rx), l(l), r(r){}
};

struct seg{
    vector<node> a;
    int cnt = 1;
    seg(int n){
        a.resize(n);
        a[1] = node(0, 0, 1, 1e9 + 1);
    }
    void build(int x){
        if(!a[x].l){
            int mid = (a[x].lx + a[x].rx)/2;
            a[++cnt] = node(0, 0, a[x].lx, mid);
            a[x].l = cnt;
            a[++cnt] = node(0, 0, mid, a[x].rx);
            a[x].r = cnt;
        }
    }
    void shift(int x){
        if(a[x].lazy){
            a[x].sum = a[x].rx - a[x].lx;
            build(x);
            a[a[x].l].lazy = a[a[x].r].lazy = 1;
            a[x].lazy = 0;
        }
    }
    void set(int l, int r, int x){
        shift(x);
        if(l == a[x].lx && r == a[x].rx){
            a[x].lazy = 1;
            shift(x);
            return;
        }
        build(x);
        int mid = (a[x].lx + a[x].rx)/2;
        if(l >= mid) set(l, r, a[x].r);
        else if(r <= mid) set(l, r, a[x].l);
        else{
            set(l, mid, a[x].l);
            set(mid, r, a[x].r);
        }
        shift(a[x].l);
        shift(a[x].r);
        a[x].sum = a[a[x].l].sum + a[a[x].r].sum;
    }
    int get(int l, int r, int x){
        shift(x);
        if(l == a[x].lx && r == a[x].rx) return a[x].sum;
        int mid = (a[x].lx + a[x].rx)/2;
        build(x);
        if(r <= mid) return get(l, r, a[x].l);
        else if(l >= mid) return get(l, r, a[x].r);
        else return get(l, mid, a[x].l) + get(mid, r, a[x].r);
    }
};


int main(){
    cin.tie(0) -> sync_with_stdio(0);
    int q; cin >> q;
    seg st(maxn*64);
    int c = 0;
    while(q--){
        int d, l, r; cin >> d >> l >> r;
        if(d == 2){
            st.set(c + l, c + r + 1, 1);
        }else{
            c = st.get(c + l, c + r + 1, 1);
            cout << c << '\n';
        }
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

apple.cpp: In constructor 'node::node(ll, ll, ll, ll, ll, ll)':
apple.cpp:15:25: warning: 'node::lazy' will be initialized after [-Wreorder]
   15 |     ll lx, rx, sum = 0, lazy = 0, l = 0, r = 0;
      |                         ^~~~
apple.cpp:15:8: warning:   'll node::lx' [-Wreorder]
   15 |     ll lx, rx, sum = 0, lazy = 0, l = 0, r = 0;
      |        ^~
apple.cpp:17:5: warning:   when initialized here [-Wreorder]
   17 |     node(ll sum, ll lazy, ll lx, ll rx, ll l = 0, ll r = 0):
      |     ^~~~

• Subtask 1: 0 / 100