oj.uz

답안 #928407

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
928407 2024-02-16T10:39:50 Z VMaksimoski008 말 (IOI15_horses) C++14
100 / 100
 210 ms 113776 KB 
#include <bits/stdc++.h>
#include "horses.h"
 
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
 
using namespace std;
 
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using Node = pair<double, int>;
 
const int mod = 1e9 + 7;
const int maxn = 1e5 + 5;
 
int n;
vector<int> X(5*maxn), Y(5*maxn), PS(5*maxn);
vector<double> logX(5*maxn), logY(5*maxn), PL(5*maxn);
 
Node merge(Node a, Node b) {
    if(a.first > b.first) return a;
    return b;
}
 
struct SegTree {
    int N;
    vector<ll> prod;
    vector<Node> tree;
    vector<double> lazy;
 
    void init() {
        N = n;
        prod.resize(5*N+5);
        tree.resize(5*N+5);
        lazy.resize(5*N+5);
        build(1, 0, N-1);
    }
 
    void push(int u, int tl, int tr) {
        if(lazy[u] == 0) return ;
 
        tree[u].first += lazy[u];
 
        if(tl != tr) {
            lazy[2*u] += lazy[u];
            lazy[2*u+1] += lazy[u];
        }
 
        lazy[u] = 0;
    }
 
    void build(int u, int tl, int tr) {
        if(tl == tr) {
            tree[u] = { PL[tl] + logY[tl], tl };
            prod[u] = X[tl];
        } else {
            int tm = (tl + tr) / 2;
            build(2*u, tl, tm);
            build(2*u+1, tm+1, tr);
            prod[u] = (prod[2*u] * prod[2*u+1]) % mod;
            tree[u] = merge(tree[2*u], tree[2*u+1]);
        }
    }
 
    void updateProd(int u, int tl, int tr, int pos, int val) {
        if(tl == tr) {
            prod[u] = val;
        } else {
            int tm = (tl + tr) / 2;
            if(pos <= tm)
                updateProd(2*u, tl, tm, pos, val);
            else
                updateProd(2*u+1, tm+1, tr, pos, val);
            prod[u] = (prod[2*u] * prod[2*u+1]) % mod;
        }
    }
 
    void updatePos(int u, int tl, int tr, int l, int r, double val) {
        push(u, tl, tr);
        if(tl > tr || tl > r || l > tr) return ;
 
        if(l <= tl && tr <= r) {
            lazy[u] += val;
            push(u, tl, tr);
            return ;
        }
 
        int tm = (tl + tr) / 2;
        updatePos(2*u, tl, tm, l, r, val);
        updatePos(2*u+1, tm+1, tr, l, r, val);
        tree[u] = merge(tree[2*u], tree[2*u+1]);
    }
 
    ll getProd(int u, int tl, int tr, int l, int r) {
        if(tl > tr || l > tr || tl > r) return 1;
        if(l <= tl && tr <= r) return prod[u];
        int tm = (tl + tr) / 2;
        return (
            getProd(2*u, tl, tm, l, r) *
            getProd(2*u+1, tm+1, tr, l, r)
        ) % mod;
    }
 
    Node getPos(int u, int tl, int tr, int l, int r) {
        if(tl > tr || l > tr || tl > r) return { -1e18, 0 };
        push(u, tl, tr);
        if(l <= tl && tr <= r) return tree[u];
        int tm = (tl + tr) / 2;
        return merge(
            getPos(2*u, tl, tm, l, r),
            getPos(2*u+1, tm+1, tr, l, r)
        );
    }
 
    void updateProd(int pos, int val) { updateProd(1, 0, N-1, pos, val); }
    ll getProd(int p) { return getProd(1, 0, N-1, 0, p); } 
    int getPos() { return getPos(1, 0, N-1, 0, N-1).second; }
    void updatePos(int l, int r, double val) { updatePos(1, 0, N-1, l, r, val); }
} tree;
 
int calc() {
    int pos = tree.getPos();
    ll ans = (tree.getProd(pos) * Y[pos]) % mod;
    return (int)ans;
}
 
int init(int N, int x[], int y[]) {
    n = N;
    for(int i=0; i<n; i++) {
        X[i] = x[i], Y[i] = y[i];
        PS[i] = X[i];
        if(i) PS[i] = (1ll * PS[i] * PS[i-1]) % mod;
        logX[i] = log2(X[i]), logY[i] = log2(y[i]);
        PL[i] = logX[i];
        if(i) PL[i] += PL[i-1];
    }
 
    tree.init();
    
    return calc();
}
 
int updateX(int p, int v) {
    tree.updatePos(p, n-1, -logX[p]);
    X[p] = v, logX[p] = log2(v);
    tree.updateProd(p, v);
    tree.updatePos(p, n-1, log2(v));
    return calc();
}
 
int updateY(int p, int v) {
    tree.updatePos(p, p, -logY[p]);
    Y[p] = v, logY[p] = log2(v);
    tree.updatePos(p, p, log2(v));
    return calc();
}
 
// int main() {
//     int n;
//     cin >> n;
//     int x[n], y[n];
//     for(int i=0; i<n; i++) cin >> x[i];
//     for(int i=0; i<n; i++) cin >> y[i];
//     cout << init(n, x, y) << '\n';
    
//     int m;
//     cin >> m;
 
//     while(m--) {
//         int t, p, v;
//         cin >> t >> p >> v;
//         if(t == 1) cout << updateX(p, v) << '\n';
//         else cout << updateY(p, v) << '\n';
//     }
 
//     return 0;
// }

Compilation message

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:134:47: warning: conversion from 'long long int' to '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} may change value [-Wconversion]
  134 |         if(i) PS[i] = (1ll * PS[i] * PS[i-1]) % mod;
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 18012 KB Output is correct
2 Correct 5 ms 18012 KB Output is correct
3 Correct 6 ms 18012 KB Output is correct
4 Correct 6 ms 18008 KB Output is correct
5 Correct 6 ms 18012 KB Output is correct
6 Correct 6 ms 18012 KB Output is correct
7 Correct 6 ms 18012 KB Output is correct
8 Correct 6 ms 18012 KB Output is correct
9 Correct 6 ms 18012 KB Output is correct
10 Correct 6 ms 18012 KB Output is correct
11 Correct 5 ms 18012 KB Output is correct
12 Correct 6 ms 18024 KB Output is correct
13 Correct 5 ms 17928 KB Output is correct
14 Correct 6 ms 18012 KB Output is correct
15 Correct 6 ms 18012 KB Output is correct
16 Correct 5 ms 17940 KB Output is correct
17 Correct 6 ms 18012 KB Output is correct
18 Correct 7 ms 18012 KB Output is correct
19 Correct 6 ms 18012 KB Output is correct
20 Correct 6 ms 18012 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 18012 KB Output is correct
2 Correct 5 ms 18080 KB Output is correct
3 Correct 6 ms 18008 KB Output is correct
4 Correct 6 ms 18008 KB Output is correct
5 Correct 6 ms 18080 KB Output is correct
6 Correct 6 ms 18008 KB Output is correct
7 Correct 6 ms 18008 KB Output is correct
8 Correct 6 ms 18012 KB Output is correct
9 Correct 6 ms 18080 KB Output is correct
10 Correct 7 ms 17832 KB Output is correct
11 Correct 5 ms 18012 KB Output is correct
12 Correct 6 ms 17976 KB Output is correct
13 Correct 5 ms 18024 KB Output is correct
14 Correct 5 ms 18012 KB Output is correct
15 Correct 5 ms 18012 KB Output is correct
16 Correct 6 ms 17932 KB Output is correct
17 Correct 6 ms 18012 KB Output is correct
18 Correct 6 ms 18008 KB Output is correct
19 Correct 7 ms 18012 KB Output is correct
20 Correct 6 ms 18012 KB Output is correct
21 Correct 6 ms 18008 KB Output is correct
22 Correct 6 ms 18080 KB Output is correct
23 Correct 8 ms 18268 KB Output is correct
24 Correct 6 ms 18264 KB Output is correct
25 Correct 6 ms 18268 KB Output is correct
26 Correct 6 ms 18180 KB Output is correct
27 Correct 7 ms 18012 KB Output is correct
28 Correct 6 ms 18268 KB Output is correct
29 Correct 6 ms 18012 KB Output is correct
30 Correct 7 ms 18012 KB Output is correct
31 Correct 6 ms 18012 KB Output is correct
32 Correct 6 ms 18092 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 122 ms 105040 KB Output is correct
2 Correct 208 ms 113776 KB Output is correct
3 Correct 176 ms 104920 KB Output is correct
4 Correct 203 ms 108624 KB Output is correct

Subtask #4
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 18012 KB Output is correct
2 Correct 6 ms 18012 KB Output is correct
3 Correct 6 ms 18012 KB Output is correct
4 Correct 5 ms 17952 KB Output is correct
5 Correct 6 ms 18012 KB Output is correct
6 Correct 5 ms 18012 KB Output is correct
7 Correct 5 ms 18012 KB Output is correct
8 Correct 6 ms 18012 KB Output is correct
9 Correct 5 ms 18012 KB Output is correct
10 Correct 5 ms 18012 KB Output is correct
11 Correct 6 ms 18012 KB Output is correct
12 Correct 7 ms 18012 KB Output is correct
13 Correct 5 ms 18008 KB Output is correct
14 Correct 6 ms 18012 KB Output is correct
15 Correct 6 ms 18080 KB Output is correct
16 Correct 6 ms 18012 KB Output is correct
17 Correct 5 ms 18012 KB Output is correct
18 Correct 6 ms 18012 KB Output is correct
19 Correct 6 ms 18012 KB Output is correct
20 Correct 6 ms 18012 KB Output is correct
21 Correct 8 ms 18012 KB Output is correct
22 Correct 6 ms 18012 KB Output is correct
23 Correct 6 ms 18268 KB Output is correct
24 Correct 7 ms 18272 KB Output is correct
25 Correct 7 ms 18264 KB Output is correct
26 Correct 6 ms 18268 KB Output is correct
27 Correct 6 ms 18012 KB Output is correct
28 Correct 6 ms 18012 KB Output is correct
29 Correct 6 ms 18012 KB Output is correct
30 Correct 6 ms 18012 KB Output is correct
31 Correct 6 ms 18092 KB Output is correct
32 Correct 6 ms 18264 KB Output is correct
33 Correct 64 ms 104268 KB Output is correct
34 Correct 61 ms 104188 KB Output is correct
35 Correct 90 ms 110792 KB Output is correct
36 Correct 82 ms 110928 KB Output is correct
37 Correct 52 ms 102352 KB Output is correct
38 Correct 55 ms 103248 KB Output is correct
39 Correct 46 ms 102312 KB Output is correct
40 Correct 69 ms 106248 KB Output is correct
41 Correct 52 ms 102252 KB Output is correct
42 Correct 52 ms 102228 KB Output is correct
43 Correct 63 ms 106576 KB Output is correct
44 Correct 63 ms 106576 KB Output is correct

Subtask #5
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 18008 KB Output is correct
2 Correct 8 ms 18012 KB Output is correct
3 Correct 5 ms 18008 KB Output is correct
4 Correct 6 ms 18024 KB Output is correct
5 Correct 6 ms 18012 KB Output is correct
6 Correct 5 ms 18012 KB Output is correct
7 Correct 6 ms 18008 KB Output is correct
8 Correct 6 ms 18012 KB Output is correct
9 Correct 6 ms 18012 KB Output is correct
10 Correct 6 ms 18012 KB Output is correct
11 Correct 6 ms 18008 KB Output is correct
12 Correct 5 ms 18012 KB Output is correct
13 Correct 6 ms 18012 KB Output is correct
14 Correct 6 ms 18012 KB Output is correct
15 Correct 6 ms 18012 KB Output is correct
16 Correct 5 ms 18012 KB Output is correct
17 Correct 5 ms 18044 KB Output is correct
18 Correct 6 ms 18012 KB Output is correct
19 Correct 5 ms 18076 KB Output is correct
20 Correct 6 ms 17832 KB Output is correct
21 Correct 6 ms 18012 KB Output is correct
22 Correct 6 ms 17940 KB Output is correct
23 Correct 6 ms 18520 KB Output is correct
24 Correct 7 ms 18268 KB Output is correct
25 Correct 7 ms 18148 KB Output is correct
26 Correct 6 ms 18268 KB Output is correct
27 Correct 7 ms 18152 KB Output is correct
28 Correct 6 ms 18268 KB Output is correct
29 Correct 7 ms 18012 KB Output is correct
30 Correct 6 ms 18052 KB Output is correct
31 Correct 6 ms 18264 KB Output is correct
32 Correct 6 ms 18088 KB Output is correct
33 Correct 109 ms 105044 KB Output is correct
34 Correct 210 ms 113488 KB Output is correct
35 Correct 176 ms 104932 KB Output is correct
36 Correct 209 ms 108748 KB Output is correct
37 Correct 63 ms 104148 KB Output is correct
38 Correct 58 ms 104272 KB Output is correct
39 Correct 83 ms 110928 KB Output is correct
40 Correct 84 ms 110856 KB Output is correct
41 Correct 52 ms 102232 KB Output is correct
42 Correct 54 ms 103248 KB Output is correct
43 Correct 46 ms 102228 KB Output is correct
44 Correct 69 ms 106204 KB Output is correct
45 Correct 43 ms 102228 KB Output is correct
46 Correct 46 ms 102400 KB Output is correct
47 Correct 61 ms 106616 KB Output is correct
48 Correct 62 ms 106488 KB Output is correct
49 Correct 180 ms 106060 KB Output is correct
50 Correct 184 ms 106192 KB Output is correct
51 Correct 147 ms 112980 KB Output is correct
52 Correct 138 ms 112468 KB Output is correct
53 Correct 159 ms 104800 KB Output is correct
54 Correct 131 ms 105040 KB Output is correct
55 Correct 101 ms 103200 KB Output is correct
56 Correct 148 ms 107904 KB Output is correct
57 Correct 98 ms 104016 KB Output is correct
58 Correct 104 ms 104340 KB Output is correct
59 Correct 61 ms 106504 KB Output is correct