oj.uz

Submission #849816

# Submission time Handle Problem Language Result Execution time Memory
849816 2023-09-15T12:04:18 Z abcvuitunggio Horses (IOI15_horses) C++17
57 / 100
 515 ms 53412 KB 
#include "horses.h"
#include <bits/stdc++.h>
using namespace std;
const int mod=1000000007;
set <pair <int, int>> s;
int n,st[2000001][2],x[500001],y[500001],mx[500001];
void build(int node, int l, int r){
    if (l==r){
        st[node][0]=x[l];
        st[node][1]=y[l];
        return;
    }
    int mid=(l+r)>>1;
    build(node<<1,l,mid);
    build(node<<1|1,mid+1,r);
    st[node][0]=1LL*st[node<<1][0]*st[node<<1|1][0]%mod;
    st[node][1]=max(st[node<<1][1],st[node<<1|1][1]);
}
void update(int node, int l, int r, int i, int val, int id){
    if (l>i||r<i)
        return;
    if (l==r){
        st[node][id]=val;
        return;
    }
    int mid=(l+r)>>1;
    update(node<<1,l,mid,i,val,id);
    update(node<<1|1,mid+1,r,i,val,id);
    st[node][0]=1LL*st[node<<1][0]*st[node<<1|1][0]%mod;
    st[node][1]=max(st[node<<1][1],st[node<<1|1][1]);
}
int getprod(int node, int l, int r, int u, int v){
    if (l>v||r<u||l>r||u>v)
        return 1;
    if (l>=u&&r<=v)
        return st[node][0];
    int mid=(l+r)>>1;
    return 1LL*getprod(node<<1,l,mid,u,v)*getprod(node<<1|1,mid+1,r,u,v)%mod;
}
int getmax(int node, int l, int r, int u, int v){
    if (l>v||r<u||l>r||u>v)
        return 1;
    if (l>=u&&r<=v)
        return st[node][1];
    int mid=(l+r)>>1;
    return max(getmax(node<<1,l,mid,u,v),getmax(node<<1|1,mid+1,r,u,v));
}
void add(int i){
    if (s.empty()){
        s.insert({0,st[1][1]});
        return;
    }
    auto it=s.upper_bound(make_pair(i,0));
    int val=getmax(1,0,n-1,i,(it==s.end()?n:(*it).first-1));
    mx[i]=val;
    if (it!=s.begin()){
        it--;
        auto p=*it;
        s.erase(it);
        p.second=getmax(1,0,n-1,p.first,i-1);
        mx[p.first]=p.second;
        s.insert(p);
    }
    s.insert({i,val});
}
void del(int i){
    if (!i)
        return;
    auto it=s.find({i,mx[i]});
    int r=n;
    if (it!=s.end()){
        it++;
        r=(*it).first-1;
        it--;
    }
    if (it!=s.begin()){
        it--;
        auto p=*it;
        s.erase(it);
        p.second=getmax(1,0,n-1,p.first,r);
        mx[p.first]=p.second;
        s.insert(p);
    }
    s.erase({i,mx[i]});
}
int calc(){
    auto it=--s.end();
    for (int i=0;i<31;i++){
        if (it==s.begin())
            break;
        it--;
    }
    auto res=*it;
    int cur=1;
    it++;
    while (it!=s.end()){
        auto p=*it;
        if (x[p.first]>res.second/cur){
            res=p;
            cur=1;
            it++;
            continue;
        }
        cur*=x[p.first];
        if (p.second>res.second/cur){
            res=p;
            cur=1;
            it++;
            continue;
        }
        cur*=p.second;
        it++;
    }
    return 1LL*getprod(1,0,n-1,0,res.first)*res.second%mod;
}
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];
    }
    build(1,0,n-1);
    for (int i=0;i<n;i++)
        if (!i||x[i]>1)
            add(i);
    return calc();
}
int updateX(int pos, int val){
    update(1,0,n-1,pos,val,0);
    if (x[pos]==1&&val>1)
        add(pos);
    if (x[pos]>1&&val==1)
        del(pos);
    x[pos]=val;
    return calc();
}
int updateY(int pos, int val){
    y[pos]=val;
    update(1,0,n-1,pos,val,1);
    auto it=s.upper_bound({pos,1000000001});
    it--;
    int p=(*it).first;
    s.erase(it);
    add(p);
	return calc();
}

Compilation message

horses.cpp: In function 'void build(int, int, int)':
horses.cpp:16:52: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   16 |     st[node][0]=1LL*st[node<<1][0]*st[node<<1|1][0]%mod;
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
horses.cpp: In function 'void update(int, int, int, int, int, int)':
horses.cpp:29:52: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   29 |     st[node][0]=1LL*st[node<<1][0]*st[node<<1|1][0]%mod;
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
horses.cpp: In function 'int getprod(int, int, int, int, int)':
horses.cpp:38:73: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   38 |     return 1LL*getprod(node<<1,l,mid,u,v)*getprod(node<<1|1,mid+1,r,u,v)%mod;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
horses.cpp: In function 'int calc()':
horses.cpp:114:55: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  114 |     return 1LL*getprod(1,0,n-1,0,res.first)*res.second%mod;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 6648 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6488 KB Output is correct
8 Correct 1 ms 6488 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6488 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6488 KB Output is correct
14 Correct 1 ms 6488 KB Output is correct
15 Correct 1 ms 6488 KB Output is correct
16 Correct 1 ms 6488 KB Output is correct
17 Correct 1 ms 6744 KB Output is correct
18 Correct 1 ms 6488 KB Output is correct
19 Correct 1 ms 6488 KB Output is correct
20 Correct 1 ms 6488 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 6488 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6744 KB Output is correct
7 Correct 1 ms 6488 KB Output is correct
8 Correct 1 ms 6488 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6488 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6488 KB Output is correct
14 Correct 1 ms 6488 KB Output is correct
15 Correct 1 ms 6488 KB Output is correct
16 Correct 1 ms 6488 KB Output is correct
17 Correct 1 ms 6488 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 6492 KB Output is correct
20 Correct 1 ms 6488 KB Output is correct
21 Correct 1 ms 6488 KB Output is correct
22 Correct 1 ms 6744 KB Output is correct
23 Correct 2 ms 6488 KB Output is correct
24 Correct 2 ms 6488 KB Output is correct
25 Correct 3 ms 6488 KB Output is correct
26 Correct 2 ms 6488 KB Output is correct
27 Correct 2 ms 6488 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 1 ms 6488 KB Output is correct
30 Correct 3 ms 6488 KB Output is correct
31 Correct 2 ms 6744 KB Output is correct
32 Correct 2 ms 6488 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 515 ms 43244 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 6488 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6488 KB Output is correct
7 Correct 1 ms 6488 KB Output is correct
8 Correct 1 ms 6488 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6488 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6488 KB Output is correct
14 Correct 1 ms 6596 KB Output is correct
15 Correct 1 ms 6488 KB Output is correct
16 Correct 1 ms 6492 KB Output is correct
17 Correct 1 ms 6488 KB Output is correct
18 Correct 1 ms 6488 KB Output is correct
19 Correct 1 ms 6488 KB Output is correct
20 Correct 1 ms 6488 KB Output is correct
21 Correct 1 ms 6488 KB Output is correct
22 Correct 1 ms 6488 KB Output is correct
23 Correct 3 ms 6488 KB Output is correct
24 Correct 2 ms 6488 KB Output is correct
25 Correct 3 ms 6488 KB Output is correct
26 Correct 3 ms 6488 KB Output is correct
27 Correct 2 ms 6488 KB Output is correct
28 Correct 3 ms 6488 KB Output is correct
29 Correct 2 ms 6488 KB Output is correct
30 Correct 2 ms 6488 KB Output is correct
31 Correct 2 ms 6488 KB Output is correct
32 Correct 2 ms 6488 KB Output is correct
33 Correct 53 ms 22988 KB Output is correct
34 Correct 48 ms 22852 KB Output is correct
35 Correct 388 ms 53240 KB Output is correct
36 Correct 420 ms 53412 KB Output is correct
37 Correct 26 ms 20824 KB Output is correct
38 Correct 187 ms 33876 KB Output is correct
39 Correct 21 ms 20568 KB Output is correct
40 Correct 361 ms 48376 KB Output is correct
41 Correct 23 ms 20840 KB Output is correct
42 Correct 29 ms 20820 KB Output is correct
43 Correct 360 ms 48716 KB Output is correct
44 Correct 348 ms 48588 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 6488 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6488 KB Output is correct
8 Correct 1 ms 6488 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6488 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6488 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6488 KB Output is correct
16 Correct 1 ms 6488 KB Output is correct
17 Correct 1 ms 6488 KB Output is correct
18 Correct 1 ms 6488 KB Output is correct
19 Correct 1 ms 6488 KB Output is correct
20 Correct 1 ms 6488 KB Output is correct
21 Correct 1 ms 6488 KB Output is correct
22 Correct 1 ms 6488 KB Output is correct
23 Correct 2 ms 6488 KB Output is correct
24 Correct 2 ms 6488 KB Output is correct
25 Correct 3 ms 6488 KB Output is correct
26 Correct 2 ms 6488 KB Output is correct
27 Correct 2 ms 6492 KB Output is correct
28 Correct 2 ms 6488 KB Output is correct
29 Correct 1 ms 6488 KB Output is correct
30 Correct 2 ms 6488 KB Output is correct
31 Correct 2 ms 6492 KB Output is correct
32 Correct 2 ms 6488 KB Output is correct
33 Incorrect 501 ms 47184 KB Output isn't correct
34 Halted 0 ms 0 KB -