답안 #917014

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
917014 2024-01-27T01:07:50 Z Whisper 원숭이와 사과 나무 (IZhO12_apple) C++17
컴파일 오류
0 ms 0 KB
#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using ld = long double;
using T = tuple<ll, ll, ll>;

//#define int long long
#define Base 41
#define sz(a) (int)a.size()
#define FOR(i, a, b) for ( int i = a ; i <= b ; i++ )
#define FORD(i, a, b) for (int i = b; i >= a; i --)
#define REP(i, n) for (int i = 0; i < n; ++i)
#define REPD(i, n) for (int i = n - 1; i >= 0; --i)
#define all(x) x.begin() , x.end()
#define pii pair<int , int>
#define fi first
#define se second
#define Lg(x) 31 - __builtin_clz(x)

#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)

constexpr ll LINF = (1ll << 60);
constexpr int INF = 1e9;
constexpr int MAX = 1e5 + 5;
constexpr int Mod = 1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

void setupIO(){
    #define name "Whisper"
    //Phu Trong from Nguyen Tat Thanh High School for gifted student
    srand(time(NULL));
    cin.tie(nullptr)->sync_with_stdio(false); cout.tie(nullptr);
    //freopen(name".inp", "r", stdin);
    //freopen(name".out", "w", stdout);
    cout << fixed << setprecision(10);
}

template <class X, class Y>
    bool minimize(X &x, const Y &y){
        X eps = 1e-9;
        if (x > y + eps) {x = y; return 1;}
        return 0;
    }

template <class X, class Y>
    bool maximize(X &x, const Y &y){
        X eps = 1e-9;
        if (x + eps < y) {x = y; return 1;}
        return 0;
    }
int Q;
struct Node{
    int l, r, val, lzy;
    Node(): l(-1), r(-1), val(0), lzy(0){}
    Node(int _l, int _r, int _val, int _lzy): l(_l), r(_r), val(_val), lzy(_lzy){}
};

struct SparseSegmentTree{
    vector<Node> f;
    int n;
    SparseSegmentTree(): f(MAX * 60), n(1){}

    void pushDown(int id, int l, int r){
        if (!f[id].lzy) return;
        if (f[id].l == -1)
            f[id].l = ++n;
        if (f[id].r == -1)
            f[id].r = ++n;
        int mid = (l + r) >> 1;
        int &res = f[id].lzy;
        f[f[id].l].lzy = res;
        f[f[id].r].lzy = res;
        f[f[id].l].val = (mid - l + 1) * res;
        f[f[id].r].val = (r - mid) * res;
        f[id].lzy = 0;
    }

    void modify(int u, int v, int val, int id = 1, int l = 1, int r = INF){
        if (u > r || v < l) return;
        if (u <= l && v >= r){
            f[id].val = val * (r - l + 1);
            f[id].lzy = val;
            return;
        }
        if (f[id].l == -1)
            f[id].l = ++n;
        if (f[id].r == -1)
            f[id].r = ++n;
        int mid = (l + r) >> 1;
        pushDown(id, l, r);
        modify(u, v, val, f[id].l, l, mid);
        modify(u, v, val, f[id].r, mid + 1, r);
        f[id].val = f[f[id].l].val + f[f[id].r].val;
    }
    int query(int u, int v, int id = 1, int l = 1, int r = INF){
        if (u > r || v < l) return 0;
        if (u <= l && v >= r) return f[id].val;
        if (f[x].l == -1)
            f[x].l = ++n;
        if (f[x].r == -1)
            f[x].r = ++n;
        int mid = (l + r) >> 1;
        pushDown(id, l, r);
        int ql = query(u, v, f[id].l, l, mid);
        int qr = query(u, v, f[id].r, mid + 1, r);
        return ql + qr;
    }
};
void Whisper(){
    cin >> Q;
    int c = 0;
    SparseSegmentTree st;
    for (int i = 1; i <= Q; ++i){
        int cmd, l, r;
        cin >> cmd >> l >> r;
        l += c, r += c;
        if (cmd == 1){
            c = st.query(l, r);
            cout << c << '\n';
        }
        else{
            st.modify(l, r, 1);
        }
    }
}


signed main(){
    setupIO();
    int Test = 1;
//    cin >> Test;
    for ( int i = 1 ; i <= Test ; i++ ){
        Whisper();
        if (i < Test) cout << '\n';
    }
}

Compilation message

apple.cpp: In member function 'int SparseSegmentTree::query(int, int, int, int, int)':
apple.cpp:100:15: error: 'x' was not declared in this scope
  100 |         if (f[x].l == -1)
      |               ^
apple.cpp:102:15: error: 'x' was not declared in this scope
  102 |         if (f[x].r == -1)
      |               ^