Submission #382306

#	Time	Username	Problem	Language	Result	Execution time	Memory
382306		JerryLiu06	Monkey and Apple-trees (IZhO12_apple)	C++11	0 / 100	510 ms	262148 KiB

apple

#include <bits/stdc++.h>

using namespace std;

struct Node {
    int sum, l, r, lazy; Node *lc, *rc;

    Node(int L, int R): sum(0), l(L), r(R), lc(NULL), rc(NULL) {}

    void pushdown() {
        if (!lazy) return ; sum = r - l + 1; int mid = (l + r) / 2;

        if (l < r) { if (!lc) lc = new Node(l, mid); lc -> lazy = lazy; if (!rc) rc = new Node(mid + 1, r); rc -> lazy = lazy; } lazy = 0;
    }
    void update(int tl, int tr) { int mid = (l + r) / 2;
        pushdown(); if (l > tr || r < tl) return ; if (tl <= l && r <= tr) { lazy = 1; return ; }

        if (!(tl > mid || tr < l)) { if (!lc) lc = new Node(l, mid); lc -> update(tl, tr); }
        if (!(tl > r || tr < mid + 1)) { if (!rc) rc = new Node(mid + 1, r); rc -> update(tl, tr); }
        
        if (lc) lc -> pushdown(); if (rc) rc -> pushdown();

        sum = 0; if (lc) sum += lc -> sum; if (rc) sum += rc -> sum;
    }
    int query(int tl, int tr) { int mid = (l + r) / 2;
        pushdown(); if (l > tr || r < tl) return 0; if (tl <= l && r <= tr) return sum;

        int res = 0; if (lc) res += lc -> query(tl, tr); if (rc) res += rc -> query(tl, tr); return res;
    }
};

int M, C; Node *root;

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);

    cin >> M; root = new Node(1, 1000000000);

    for (int i = 0; i < M; i++) { int D, X, Y; cin >> D >> X >> Y;

        if (D == 1) { C = root -> query(X + C, Y + C); cout << C << "\n"; }

        if (D == 2) root -> update(X + C, Y + C);
    }
}

Compilation message (stderr)

apple.cpp: In member function 'void Node::pushdown()':
apple.cpp:11:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   11 |         if (!lazy) return ; sum = r - l + 1; int mid = (l + r) / 2;
      |         ^~
apple.cpp:11:29: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   11 |         if (!lazy) return ; sum = r - l + 1; int mid = (l + r) / 2;
      |                             ^~~
apple.cpp: In member function 'void Node::update(int, int)':
apple.cpp:21:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   21 |         if (lc) lc -> pushdown(); if (rc) rc -> pushdown();
      |         ^~
apple.cpp:21:35: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   21 |         if (lc) lc -> pushdown(); if (rc) rc -> pushdown();
      |                                   ^~
apple.cpp: In member function 'int Node::query(int, int)':
apple.cpp:25:37: warning: unused variable 'mid' [-Wunused-variable]
   25 |     int query(int tl, int tr) { int mid = (l + r) / 2;
      |                                     ^~~

• Subtask 1: 0 / 100