제출 #560626

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
560626		Sergio_2357	말 (IOI15_horses)	C++17	37 / 100	349 ms	111420 KiB

horses

#include "horses.h"
#include <bits/stdc++.h>
using namespace std;

#define ll long long

const long long mod = 1e9 + 7;

struct range {
public:
    ll p_m, s_m, m_m, h_a;
    int p_o, s_o, x, y;
    range()
    {
        h_a = 1;
        p_m = s_m = m_m = 1;
        p_o = s_o = x = y = 0;
    }
    range(int i_, int x_, int y_)
    {
        h_a = x_;
        s_m = 1;
        p_m = x_;
        x = x_;
        y = y_;
        m_m = y_;
        p_o = s_o = 0;
    }
    range operator+(range b)
    {
        range res;
        bool choose = false;
        if (s_m * b.p_m > mod)
            choose = true;
        else if (s_m * b.p_m * b.m_m > m_m)
            choose = true;
        if (s_o || b.p_o)
            choose = true;
        if (choose) {
            res.p_m = b.p_m * s_m;
            int tp_o = 0;
            if (res.p_m >= mod)
                tp_o = 1;
            res.p_m %= mod;
            res.h_a = h_a * res.p_m;
            res.h_a %= mod;
            res.p_m *= p_m;
            if (res.p_m >= mod)
                tp_o = 1;
            res.p_m %= mod;
            res.p_o = p_o | tp_o;
            res.m_m = b.m_m;
            res.s_m = b.s_m;
            res.s_o = b.s_o;
        } else {
            res.s_m = b.s_m * s_m;
            int ts_o = 0;
            if (res.s_m >= mod)
                ts_o = 1;
            res.s_m %= mod;
            res.s_m *= b.p_m;
            if (res.s_m >= mod)
                ts_o = 1;
            res.s_m %= mod;
            res.s_o = b.s_o | ts_o;
            res.p_m = p_m;
            res.p_o = p_o;
            res.m_m = m_m;
            res.h_a = h_a;
        }
        return res;
    }
    void print()
    {
        //cout << p_m << ' ' << s_m << ' ' << m_m << ' ' << h_a << ' ' << p_o << ' ' << s_o << ' ' << x << ' ' << y << endl;
    }
};

template <class T>
struct SegTree {
    int n;
    vector<T> v;
    void rupdate(int i, int l, int r, int idx, T val)
    {
        if (r - l == 1) {
            if (l == idx)
                v[i] = val;
        } else {
            int m = (r - l) / 2 + l;
            if (idx < m)
                rupdate(2 * i, l, m, idx, val);
            else
                rupdate(2 * i + 1, m, r, idx, val);
            v[i] = v[2 * i] + v[2 * i + 1];
        }
    }
    void update(int idx, T val)
    {
        rupdate(1, 0, n, idx, val);
    }
    T query()
    {
        return v[1];
    }
    SegTree() { }
    SegTree(vector<T> in)
    {
        n = 1;
        while (n < in.size())
            n *= 2;
        v = vector<T>(2 * n + 5);
        for (int i = 0; i < in.size(); i++)
            update(i, in[i]);
    }
};

SegTree<range> st;
vector<range> vr;

int init(int N, int X[], int Y[])
{
    vr = vector<range>(N);
    for (int i = 0; i < N; i++) {
        vr[i] = range(i, X[i], Y[i]);
    }
    //cout << N << endl;
    st = SegTree<range>(vr);
    st.query().print();
    return (st.query().h_a * st.query().m_m) % mod;
}

int updateX(int pos, int val)
{
    vr[pos] = range(pos, val, vr[pos].y);
    st.update(pos, vr[pos]);
    st.query().print();
    return (st.query().h_a * st.query().m_m) % mod;
}

int updateY(int pos, int val)
{
    vr[pos] = range(pos, vr[pos].x, val);
    st.update(pos, vr[pos]);
    st.query().print();
    return (st.query().h_a * st.query().m_m) % mod;
}

컴파일 시 표준 에러 (stderr) 메시지

horses.cpp: In constructor 'range::range(int, int, int)':
horses.cpp:19:15: warning: unused parameter 'i_' [-Wunused-parameter]
   19 |     range(int i_, int x_, int y_)
      |           ~~~~^~
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:129:46: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  129 |     return (st.query().h_a * st.query().m_m) % mod;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:137:46: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  137 |     return (st.query().h_a * st.query().m_m) % mod;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:145:46: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  145 |     return (st.query().h_a * st.query().m_m) % mod;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp: In instantiation of 'SegTree<T>::SegTree(std::vector<_Tp>) [with T = range]':
horses.cpp:127:27:   required from here
horses.cpp:109:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<range, std::allocator<range> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  109 |         while (n < in.size())
      |                ~~^~~~~~~~~~~
horses.cpp:112:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<range, std::allocator<range> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  112 |         for (int i = 0; i < in.size(); i++)
      |                         ~~^~~~~~~~~~~

• Subtask 1: 17 / 17
• Subtask 2: 0 / 17
• Subtask 3: 20 / 20
• Subtask 4: 0 / 23
• Subtask 5: 0 / 23