oj.uz

Submission #1005354

# Submission time Handle Problem Language Result Execution time Memory
1005354 2024-06-22T10:56:39 Z vjudge1 Horses (IOI15_horses) C++17
100 / 100
 460 ms 42240 KB 
#pragma GCC optimize("-O3")
#include<bits/stdc++.h>
#include "horses.h"
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#define ll long long
#define ld long double
#define vl vector<ll>
#define vi vector<int>
#define pii pair<int, int>
#define pll pair<ll, ll>
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define pb push_back
#define p_b pop_back
#define f first
#define s second
using namespace std;
using namespace __gnu_pbds;
typedef tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
const int mod = 1e9+7, sz = 5e5+5;
const ll inf = 2e9;
int x[sz], y[sz], n;
pii segtree[4*sz];
set<pii>st;
int m(ll x, int y)
{
    return ((x % mod) * y) % mod;
}
void build(int v, int l, int r)
{
    if(l == r)
    {
        segtree[v].f = x[l];
        segtree[v].s = y[l];
    }
    else
    {
        int mid = (l + r) / 2;
        build(2*v, l, mid);
        build(2*v+1, mid+1, r);
        segtree[v].f = m(segtree[2*v].f, segtree[2*v+1].f);
        segtree[v].s = max(segtree[2*v].s, segtree[2*v+1].s);
    }
}
void update(int v, int l, int r, int type, int pos, int val)
{
    if(l == r)
    {
        if(type == 1)
            segtree[v].f = val;
        else
            segtree[v].s = val;
    }
    else
    {
        int mid = (l + r) / 2;
        if(pos <= mid)
            update(2*v, l, mid, type, pos, val);
        else
            update(2*v+1, mid+1, r, type, pos, val);
        segtree[v].f = m(segtree[2*v].f, segtree[2*v+1].f);
        segtree[v].s = max(segtree[2*v].s, segtree[2*v+1].s);
    }
}
pii findans(int v, int l, int r, int tl, int tr)
{
    if(tl > tr)
        return {1, INT_MIN};
    if(l == tl && r == tr)
        return segtree[v];
    else
    {
        int mid = (l + r) / 2;
        pii lans, rans, ans;
        lans = findans(2*v, l, mid, tl, min(mid, tr));
        rans = findans(2*v+1, mid+1, r, max(mid+1, tl), tr);
        ans.f = m(lans.f, rans.f);
        ans.s = max(lans.s, rans.s);
        return ans;
    }
}
int ans()
{
    ll res = 1;
    int lst = n + 1;
    for(auto u : st)
    {
        res = max(res, (ll)(findans(1, 1, n, -u.f, lst-1).s));
        res *= u.s;
        if(res >= inf)
            return m(res, findans(1, 1, n, 1, -u.f-1).f);
        lst = -u.f;
    }
    return res % mod;
}
int init(int N, int X[], int Y[]) {
    n = N;
    for(int i = 1; i <= N; i++)
    {
        x[i] = X[i-1];
        y[i] = Y[i-1];
        if(x[i] >= 2 || i == 1)
            st.insert({-i, x[i]});
    }
    build(1, 1, N);
    return ans();
}
int updateX(int pos, int val) {
    pos++;
    update(1, 1, n, 1, pos, val);
    if(x[pos] >= 2 || pos == 1)
    {
        if(st.find({-pos, x[pos]}) != st.end())
            st.erase({-pos, x[pos]});
    }
    x[pos] = val;
    if(x[pos] >= 2 || pos == 1)
        st.insert({-pos, x[pos]});
    return ans();
}
int updateY(int pos, int val) {
    update(1, 1, n, 2, pos+1, val);
    return ans();
}

Compilation message

horses.cpp: In function 'int m(long long int, int)':
horses.cpp:27:17: warning: declaration of 'y' shadows a global declaration [-Wshadow]
   27 | int m(ll x, int y)
      |             ~~~~^
horses.cpp:24:12: note: shadowed declaration is here
   24 | int x[sz], y[sz], n;
      |            ^
horses.cpp:27:10: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   27 | int m(ll x, int y)
      |          ^
horses.cpp:24:5: note: shadowed declaration is here
   24 | int x[sz], y[sz], n;
      |     ^
horses.cpp:29:28: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   29 |     return ((x % mod) * y) % mod;
      |            ~~~~~~~~~~~~~~~~^~~~~
horses.cpp: In function 'int ans()':
horses.cpp:96:16: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   96 |     return res % mod;
      |            ~~~~^~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 0 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 0 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 0 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 0 ms 4444 KB Output is correct
13 Correct 1 ms 4540 KB Output is correct
14 Correct 0 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 0 ms 4444 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 0 ms 4444 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4444 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 0 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 0 ms 4444 KB Output is correct
11 Correct 1 ms 4548 KB Output is correct
12 Correct 0 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 0 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 0 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 4 ms 4576 KB Output is correct
28 Correct 2 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 2 ms 4444 KB Output is correct
32 Correct 2 ms 4560 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 414 ms 42196 KB Output is correct
2 Correct 229 ms 42184 KB Output is correct
3 Correct 229 ms 42064 KB Output is correct
4 Correct 267 ms 42068 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 1 ms 4440 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 0 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 0 ms 4444 KB Output is correct
12 Correct 0 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 0 ms 4444 KB Output is correct
16 Correct 0 ms 4444 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 0 ms 4444 KB Output is correct
20 Correct 0 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 0 ms 4444 KB Output is correct
23 Correct 2 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 3 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 2 ms 4444 KB Output is correct
32 Correct 2 ms 4444 KB Output is correct
33 Correct 28 ms 17836 KB Output is correct
34 Correct 27 ms 17756 KB Output is correct
35 Correct 132 ms 41244 KB Output is correct
36 Correct 119 ms 41300 KB Output is correct
37 Correct 76 ms 17756 KB Output is correct
38 Correct 76 ms 29776 KB Output is correct
39 Correct 22 ms 17756 KB Output is correct
40 Correct 126 ms 41180 KB Output is correct
41 Correct 40 ms 17752 KB Output is correct
42 Correct 53 ms 17860 KB Output is correct
43 Correct 107 ms 41040 KB Output is correct
44 Correct 109 ms 41044 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4696 KB Output is correct
3 Correct 1 ms 4440 KB Output is correct
4 Correct 0 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4696 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 0 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 0 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4536 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 3 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4696 KB Output is correct
31 Correct 2 ms 4444 KB Output is correct
32 Correct 4 ms 4444 KB Output is correct
33 Correct 460 ms 42056 KB Output is correct
34 Correct 244 ms 42212 KB Output is correct
35 Correct 241 ms 42064 KB Output is correct
36 Correct 243 ms 42064 KB Output is correct
37 Correct 28 ms 17860 KB Output is correct
38 Correct 27 ms 17776 KB Output is correct
39 Correct 124 ms 41208 KB Output is correct
40 Correct 114 ms 41220 KB Output is correct
41 Correct 60 ms 17756 KB Output is correct
42 Correct 63 ms 29776 KB Output is correct
43 Correct 21 ms 17756 KB Output is correct
44 Correct 111 ms 41300 KB Output is correct
45 Correct 40 ms 17756 KB Output is correct
46 Correct 52 ms 17756 KB Output is correct
47 Correct 104 ms 41004 KB Output is correct
48 Correct 100 ms 41044 KB Output is correct
49 Correct 89 ms 19792 KB Output is correct
50 Correct 80 ms 19804 KB Output is correct
51 Correct 258 ms 42068 KB Output is correct
52 Correct 174 ms 42240 KB Output is correct
53 Correct 421 ms 19716 KB Output is correct
54 Correct 172 ms 32596 KB Output is correct
55 Correct 86 ms 17756 KB Output is correct
56 Correct 180 ms 42064 KB Output is correct
57 Correct 262 ms 18512 KB Output is correct
58 Correct 369 ms 18940 KB Output is correct
59 Correct 98 ms 41044 KB Output is correct