Submission #682917

#	Time	Username	Problem	Language	Result	Execution time	Memory
682917		vjudge1	Monkey and Apple-trees (IZhO12_apple)	C++17	0 / 100	401 ms	262144 KiB

apple

#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <algorithm>
#include <string>
#include <cmath>
#include <cstdio>
#include <iomanip>
#include <fstream>
#include <cassert>
#include <cstring>
#include <unordered_set>
#include <unordered_map>
#include <numeric>
#include <ctime>
#include <bitset>
#include <complex>
#include <chrono>
#include <random>
#include <functional>
#define taskname ""

using namespace std;

const long long MAXN = 1e9, INF = 1e18;

struct node
{
    long long left, right;
    long long val = 0;
    bool lazy = false;
    node *left_child = nullptr, *right_child = nullptr;

    node(int lb, int rb)
    {
        left = lb;
        right = rb;
    }

    void extend()
    {
        if (!left_child && left < right)
        {
            int mid = (left + right) / 2;
            left_child = new node(left, mid);
            right_child = new node(mid + 1, right);
        }
    }

    ~node()
    {
        delete left_child;
        delete right_child;
        left_child = NULL;
        right_child = NULL;
    }

    void push()
    {
        if (lazy)
        {
            extend();
            left_child->val = left_child->right - left_child->left + 1;
            left_child->lazy = true;
            right_child->val = right_child->right - right_child->left + 1;
            right_child->lazy = true;
            lazy = false;
        }
    }

    void update(long long l, long long r, long long newval)
    {
        if (l > r)
            return;
        if (l == left && right == r)
        {
            val = right - left + 1;
            lazy = true;
        }
        else
        {
            extend();
            push();
            long long mid = (left + right) / 2;
            left_child->update(l, min(r, mid), newval);
            right_child->update(max(l, mid + 1), r, newval);
            val = left_child->val + right_child->val;
        }
    }

    long long query(long long l, long long r)
    {
        if (l > r)
            return 0;
        if (l == left && r == right)
            return val;
        extend();
        push();
        long long mid = (left + right) / 2;
        return left_child->query(l, min(mid, r)) + right_child->query(max(mid + 1, l), r);
    }
};

void solve()
{
    long long m;
    cin >> m;
    node *root = new node(1, MAXN);
    long long c = 0;
    while (m--)
    {
        long long d, x, y;
        cin >> d >> x >> y;
        if (d == 1)
        {
            c = root->query(x + c, y + c);
            cout << c << '\n';
        }
        else
        {
            root->update(x + c, y + c, 1);
        }
    }
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    if (fopen(taskname ".inp", "r"))
    {
        freopen(taskname ".inp", "r", stdin);
        freopen(taskname ".out", "w", stdout);
    }
    long long segtree = 1;
    // cin >> segtree;
    while (segtree--)
    {
        solve();
    }
}

Compilation message (stderr)

apple.cpp: In function 'int main()':
apple.cpp:136:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  136 |         freopen(taskname ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
apple.cpp:137:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  137 |         freopen(taskname ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100