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답안 #935044

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
935044 2024-02-28T13:04:14 Z sleepntsheep 사다리꼴 (balkan11_trapezoid) C++17
100 / 100
 139 ms 43584 KB 
#include <iostream>
#include <numeric>
#include <fstream>
#include <iomanip>
#include <cmath>
#include <cassert>
#include <cstring>
#include <vector>
#include <algorithm>
#include <deque>
#include <set>
#include <utility>
#include <array>

using namespace std;
#define ALL(x) begin(x), end(x)
#define ShinLena cin.tie(nullptr)->sync_with_stdio(false);
#define N 500005

struct A
{
    int hi = -1, freq = 0;

    friend A operator+(A a, A b)
    {
        if (b.hi > a.hi) return b;
        if (a.hi > b.hi) return a;
        return A{a.hi, (a.freq + b.freq) % 30013};
    }

    void operator+=(A a) { *this = *this + a; }
};

int n;
A t[N+5<<1];
array<int, 4> a[N];

int stsz = N;
void upd(int p, A k)
{
    for (t[p += N] += k; p >>= 1;) t[p] = t[p<<1] + t[p<<1|1];
}

A qry(int l, int r)
{
    A z{-1,0};
    for (l += N, r += N; l < r; l >>= 1, r >>= 1)
    {
        if(l&1) z += t[l++];
        if(r&1) z = t[--r] + z;
    }
    return z;
}

vector<int> cx;
A dp[N];
basic_string<int> at_a[N], at_b[N];

int main()
{
    ShinLena;
    cin >> n;
    for (int i = 0; i < n; ++i) for (auto &x : a[i]) cin >> x, cx.push_back(x);

    int oo = 1e9+1;
    a[n++] = {oo, oo, oo, oo};
    cx.push_back(-1);
    cx.push_back(oo);

    sort(cx.begin(), cx.end());
    cx.resize(unique(cx.begin(), cx.end()) - cx.begin());

    sort(a, a+n);

    for (int i = 0; i < n; ++i) for (auto &x: a[i]) x = lower_bound(cx.begin(), cx.end(), x) - cx.begin()+1;


    for (int i = 0; i < n; ++i)
        at_a[a[i][0]].push_back(i),
        at_b[a[i][1]].push_back(i);

    upd(0, A{0, 1});

    for (int x = 0; x < N; ++x)
    {
        for (auto i : at_a[x])
        {
            auto [a, b, c, d] = ::a[i];
            dp[i] = qry(0, c);
            dp[i].hi++;
        }

        for (auto i : at_b[x]) upd(a[i][3], dp[i]);
    }

    cout << dp[n-1].hi-1 << ' ' << dp[n-1].freq;

    return 0;
}

Compilation message

trapezoid.cpp:35:6: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   35 | A t[N+5<<1];
      |      ^

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 31836 KB Output is correct
2 Correct 9 ms 31836 KB Output is correct
3 Correct 10 ms 32092 KB Output is correct
4 Correct 10 ms 32092 KB Output is correct
5 Correct 11 ms 32192 KB Output is correct
6 Correct 12 ms 32348 KB Output is correct
7 Correct 13 ms 32348 KB Output is correct
8 Correct 14 ms 32604 KB Output is correct
9 Correct 21 ms 32988 KB Output is correct
10 Correct 28 ms 35800 KB Output is correct
11 Correct 38 ms 36532 KB Output is correct
12 Correct 66 ms 38864 KB Output is correct
13 Correct 81 ms 40392 KB Output is correct
14 Correct 94 ms 41668 KB Output is correct
15 Correct 102 ms 41052 KB Output is correct
16 Correct 111 ms 41928 KB Output is correct
17 Correct 115 ms 43204 KB Output is correct
18 Correct 96 ms 41320 KB Output is correct
19 Correct 115 ms 42944 KB Output is correct
20 Correct 139 ms 43584 KB Output is correct