oj.uz

Submission #734641

# Submission time Handle Problem Language Result Execution time Memory
734641 2023-05-02T18:17:30 Z Magikarp4000 Horses (IOI15_horses) C++17
54 / 100
 591 ms 65612 KB 
#include "horses.h"
#include <bits/stdc++.h>
using namespace std;
#define OPTM ios_base::sync_with_stdio(0); cin.tie(0);
#define INF int64_t(1e9+7)
#define ln '\n' 
#define ll long long
#define ull unsigned long long
#define ui unsigned int
#define us unsigned short
#define FOR(i,s,n) for (int i = s; i < n; i++)
#define FORR(i,n,s) for (int i = n; i > s; i--)
#define FORX(u, arr) for (auto u : arr)
#define PB push_back
#define in(v,x) (v.find(x) != v.end())
#define F first
#define S second
#define PII pair<int, int>
#define PLL pair<ll, ll>
#define UM unordered_map
#define US unordered_set
#define PQ priority_queue
#define ALL(v) v.begin(), v.end()
const ll LLINF = 1e18+1;

const int MAXN = 5e5+1, LOG = 30;
const ll MAXX = 1e9;
int n;
ll x[MAXN], y[MAXN];
set<int> a;
ll st[MAXN*4], st1[MAXN*4];

void build(int s, int tl, int tr) {
    if (tl == tr) st[s] = y[tl];
    else {
        int tm = (tl+tr)/2;
        build(s*2,tl,tm);
        build(s*2+1,tm+1,tr);
        st[s] = max(st[s*2], st[s*2+1]);
    }
}

void update(int s, int tl, int tr, int idx, ll val) {
    if (tl == tr) st[s] = val;
    else {
        int tm = (tl+tr)/2;
        if (idx <= tm) update(s*2,tl,tm,idx,val);
        else update(s*2+1,tm+1,tr,idx,val);
        st[s] = max(st[s*2], st[s*2+1]);
    }
}

ll query(int s, int tl, int tr, int l, int r) {
    if (l <= tl && r >= tr) return st[s];
    else {
        int tm = (tl+tr)/2;
        ll cur = -INF;
        if (l <= tm) cur = max(cur, query(s*2,tl,tm,l,r));
        if (r > tm) cur = max(cur, query(s*2+1,tm+1,tr,l,r));
        return cur;
    }
}

void build1(int s, int tl, int tr) {
    if (tl == tr) st1[s] = x[tl];
    else {
        int tm = (tl+tr)/2;
        build1(s*2,tl,tm);
        build1(s*2+1,tm+1,tr);
        st1[s] = (st1[s*2]*st1[s*2+1])%INF;
    }
}

void update1(int s, int tl, int tr, int idx, ll val) {
    if (tl == tr) st1[s] = val;
    else {
        int tm = (tl+tr)/2;
        if (idx <= tm) update1(s*2,tl,tm,idx,val);
        else update1(s*2+1,tm+1,tr,idx,val);
        st1[s] = (st1[s*2]*st1[s*2+1])%INF;
    }
}

ll query1(int s, int tl, int tr, int l, int r) {
    if (l <= tl && r >= tr) return st1[s];
    else {
        int tm = (tl+tr)/2;
        ll cur = 1ll;
        if (l <= tm) cur = (cur*query1(s*2,tl,tm,l,r))%INF;
        if (r > tm) cur = (cur*query1(s*2+1,tm+1,tr,l,r))%INF;
        return cur;
    }
}

int num = 0;

int calc() {
    vector<int> v;
    int cnt = 0;
    for (auto it = a.rbegin(); it != a.rend(); it++) {
    	v.PB(*it);
    	cnt++;
    	if (cnt >= LOG) break;
    }
    //v.PB(0);
    reverse(ALL(v));
    // FORX(u,v) cout << u << ' ';
    // cout << ln;
    int vn = v.size();
    ll xval = 1, yval = 0, cur = -INF, idx = -1;
    FOR(i,0,vn) {
        int en = i == vn-1 ? n-1 : v[i+1]-1;
        xval *= x[v[i]];
        yval = query(1,0,n-1,v[i],en);
        if (xval*yval > cur) {
            idx = i;
            cur = yval;
            xval = 1;
        }
    }
    int en = idx == vn-1 ? n-1 : v[idx+1]-1;
    // cout << v[idx] << ln;
    ll res = (query1(1,0,n-1,0,v[idx])*query(1,0,n-1,v[idx],en))%INF;
    //ll res = 0;
    return res;
}

int init(int N, int X[], int Y[]) {
    OPTM;
    n = N;
    FOR(i,0,n) {
        x[i] = X[i];
        y[i] = Y[i];
    }
    a.insert(0);
    build(1,0,n-1);
    build1(1,0,n-1);
    FOR(i,0,n) if (x[i] > 1) a.insert(i);
    return calc();
}

int updateX(int pos, int val) {	
    update1(1,0,n-1,pos,val);
    x[pos] = val;
    if (val == 1 && a.count(pos) && pos != 0) a.erase(pos);
    if (val > 1) a.insert(pos);
    return calc();
}

int updateY(int pos, int val) {
    update(1,0,n-1,pos,val);
    y[pos] = val;
    return calc();
}

Compilation message

horses.cpp: In function 'int calc()':
horses.cpp:109:20: warning: conversion from 'std::vector<int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
  109 |     int vn = v.size();
      |              ~~~~~~^~
horses.cpp:125:12: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  125 |     return res;
      |            ^~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 316 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 312 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 3 ms 352 KB Output is correct
24 Correct 3 ms 328 KB Output is correct
25 Correct 3 ms 468 KB Output is correct
26 Correct 4 ms 480 KB Output is correct
27 Correct 3 ms 340 KB Output is correct
28 Correct 3 ms 468 KB Output is correct
29 Correct 1 ms 320 KB Output is correct
30 Correct 3 ms 468 KB Output is correct
31 Correct 2 ms 324 KB Output is correct
32 Correct 3 ms 340 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 508 ms 56720 KB Output is correct
2 Correct 569 ms 65612 KB Output is correct
3 Correct 532 ms 56752 KB Output is correct
4 Correct 591 ms 60692 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 320 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 1 ms 316 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 312 KB Output is correct
17 Correct 1 ms 312 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 316 KB Output is correct
23 Correct 3 ms 340 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 3 ms 468 KB Output is correct
26 Correct 3 ms 468 KB Output is correct
27 Correct 3 ms 468 KB Output is correct
28 Correct 3 ms 456 KB Output is correct
29 Correct 2 ms 340 KB Output is correct
30 Correct 3 ms 468 KB Output is correct
31 Correct 3 ms 424 KB Output is correct
32 Correct 3 ms 340 KB Output is correct
33 Correct 99 ms 32072 KB Output is correct
34 Correct 70 ms 32532 KB Output is correct
35 Correct 214 ms 62880 KB Output is correct
36 Correct 204 ms 62932 KB Output is correct
37 Correct 84 ms 30708 KB Output is correct
38 Correct 150 ms 43692 KB Output is correct
39 Correct 39 ms 30476 KB Output is correct
40 Correct 208 ms 57988 KB Output is correct
41 Incorrect 54 ms 30604 KB Output isn't correct
42 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 1 ms 316 KB Output is correct
23 Correct 3 ms 324 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 3 ms 468 KB Output is correct
26 Correct 3 ms 468 KB Output is correct
27 Correct 3 ms 440 KB Output is correct
28 Correct 3 ms 452 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 4 ms 452 KB Output is correct
31 Correct 2 ms 340 KB Output is correct
32 Correct 3 ms 340 KB Output is correct
33 Correct 464 ms 56720 KB Output is correct
34 Correct 559 ms 65472 KB Output is correct
35 Correct 557 ms 56836 KB Output is correct
36 Correct 585 ms 60688 KB Output is correct
37 Correct 96 ms 32600 KB Output is correct
38 Correct 73 ms 32632 KB Output is correct
39 Correct 222 ms 63012 KB Output is correct
40 Correct 220 ms 62860 KB Output is correct
41 Correct 77 ms 30792 KB Output is correct
42 Correct 123 ms 43484 KB Output is correct
43 Correct 37 ms 30552 KB Output is correct
44 Correct 197 ms 57856 KB Output is correct
45 Incorrect 50 ms 30528 KB Output isn't correct
46 Halted 0 ms 0 KB -