oj.uz

Submission #1107737

# Submission time Handle Problem Language Result Execution time Memory
1107737 2024-11-02T04:27:18 Z Aviansh Horses (IOI15_horses) C++17
54 / 100
 1500 ms 35412 KB 
#include "horses.h"
#include <bits/stdc++.h>
using namespace std;

int n;
int *x;
int *y;
int mod = 1e9+7;

template <class T> class segTree{
    private:
        int n;
        T *st;
    public:
        void realMakeST(int *arr, int l, int r, int ind){
            if(l==r){
                st[ind]=arr[l];
            }
            else{
                int mid = (l+r)/2;
                realMakeST(arr,l,mid,ind*2+1);
                realMakeST(arr,mid+1,r,ind*2+2);
                st[ind]=st[ind*2+1]*st[ind*2+2];
                st[ind]%=mod;
            }
        }
        segTree(){
            //aise hi
        }
        segTree(int *arr, int siz){
            int x = (int)pow(2,ceil(log2(siz)));
            n=siz-1;
            x*=2;
            st=new T[x];
            realMakeST(arr,0,n,0);
        }
        void realUpdate(int l, int r, int ind, int pos, int val){
            if(pos<l||pos>r){
                return;
            }
            if(l==r){
                st[ind]=val;
                return;
            }
            int mid = (l+r)/2;
            realUpdate(l,mid,2*ind+1,pos,val);
            realUpdate(mid+1,r,2*ind+2,pos,val);
            st[ind]=st[ind*2+1]*st[ind*2+2];
            st[ind]%=mod;
        }
        void update(int ind, int val){
            realUpdate(0,n,0,ind,val);
        }

        T realQuery(int l, int r, int s, int e, int ind){
            if(e<l||s>r){
                return 1;
            }
            if(s<=l&&r<=e){
                return st[ind];
            }
            int mid = (l+r)/2;
            return (realQuery(l,mid,s,e,2*ind+1)*realQuery(mid+1,r,s,e,2*ind+2))%mod;
        }

        T query(int s,int e){
            return realQuery(0,n,s,e,0);
        }
};


template <class T> class segTreeMax{
    private:
        int n;
        T *st;
    public:
        void realMakeST(int *arr, int l, int r, int ind){
            if(l==r){
                st[ind]=arr[l];
            }
            else{
                int mid = (l+r)/2;
                realMakeST(arr,l,mid,ind*2+1);
                realMakeST(arr,mid+1,r,ind*2+2);
                st[ind]=st[ind*2+1]*st[ind*2+2];
                st[ind]%=mod;
            }
        }
        segTreeMax(){
            //aise hi
        }
        segTreeMax(int *arr, int siz){
            int x = (int)pow(2,ceil(log2(siz)));
            n=siz-1;
            x*=2;
            st=new T[x];
            realMakeST(arr,0,n,0);
        }
        void realUpdate(int l, int r, int ind, int pos, int val){
            if(pos<l||pos>r){
                return;
            }
            if(l==r){
                st[ind]=val;
                return;
            }
            int mid = (l+r)/2;
            realUpdate(l,mid,2*ind+1,pos,val);
            realUpdate(mid+1,r,2*ind+2,pos,val);
            st[ind]=st[ind*2+1]*st[ind*2+2];
            st[ind]%=mod;
        }
        void update(int ind, int val){
            realUpdate(0,n,0,ind,val);
        }

        T realQuery(int l, int r, int s, int e, int ind){
            if(e<l||s>r){
                return 1;
            }
            if(s<=l&&r<=e){
                return st[ind];
            }
            int mid = (l+r)/2;
            return (realQuery(l,mid,s,e,2*ind+1)*realQuery(mid+1,r,s,e,2*ind+2))%mod;
        }

        T query(int s,int e){
            return realQuery(0,n,s,e,0);
        }
};

int t = 1;
int *temp = &t;

segTree<long long> st(temp,1);
segTreeMax<long long> stmax(temp,1);
set<pair<int,int>>ones;

int finans(){
    int mx = n-1;
    long long curr = 1;
    int mxy = y[n-1];
    //cout << "here1" << endl;
    set<pair<int,int>>::iterator it = ones.end();
    //cout << "here2" << endl;
    //--it;
    //cout << "ones.size: " << ones.size() << endl;
    bool over = !(ones.size()==0);
    for(int i = n-1;i>=0;i--){
        if(!over&&i==(*it).second){
            i=(*it).first;
            int cury = stmax.query((*it).first,(*it).second);
            if(cury>curr){
                mx=i;
                curr=cury;
                mxy=cury;
            }
            if(it==ones.begin()){
                over=1;
            }
            it--;
            continue;
        }
        if(y[i]>curr){
            mx=i;
            curr=y[i];
            mxy=y[i];
        }
        curr*=x[i];
        if(curr>1e9){
            break;
        }
    }
    //cout << "returning: " << (1LL*st.query(0,mx)*mxy)%mod << endl;
    return (1LL*st.query(0,mx)*mxy)%mod;
}

int init(int N, int X[], int Y[]) {
    x=X;
    y=Y;
    n=N;
    st = segTree<long long>(x,n);
    stmax = segTreeMax<long long>(y,n);
    pair<int,int>rg={-1,-1};
    for(int i = 0;i<n;i++){
        if(x[i]==1){
            if(rg.first==-1){
                rg.first=i;
                rg.second=i;
            }
            else{
                rg.second=i;
            }
        }
        else{
            ones.insert(rg);
            rg={-1,-1};
        }
    }
    if(rg.first!=-1){
        ones.insert(rg);
    }
    //cout << "here" << endl;
    return finans();
}

int updateX(int pos, int val) {
    x[pos]=val;
    st.update(pos,val);
	return finans();
}

int updateY(int pos, int val) {
    if(y[pos]==1&&val!=1){
        set<pair<int,int>>::iterator it = ones.upper_bound({pos,2e9});
        pair<int,int>p = *(--it);
        ones.erase(p);
        if(p.first!=pos){
            ones.insert({p.first,pos-1});
        }
        if(p.second!=pos){
            ones.insert({pos+1,p.second});
        }
    }
    else if(y[pos]!=1&&val==1){
        if(ones.size()==0){
            ones.insert({pos,pos});
        }
        else{
            set<pair<int,int>>::iterator it = ones.upper_bound({pos,2e9});
            pair<int,int>p={0,0};
            if(it!=ones.begin()){
                p = *(--it);
                if(p.second==pos-1){
                    ones.erase(p);
                    ones.insert({p.first,pos});
                }
                else{
                    ones.insert({pos,pos});
                }
            }
            else{
                ones.insert({pos,pos});
            }
            it=ones.upper_bound({pos,2e9});
            if(it!=ones.end()){
                p=*(it);
                if(p.first==pos+1){
                    pair<int,int>p2=*(--it);
                    ones.erase(p);
                    ones.erase(p2);
                    ones.insert({p2.first,p.second});
                }
            }
        }
    }
    y[pos]=val;
    stmax.update(pos,val);
	return finans();
}

Compilation message

horses.cpp: In constructor 'segTree<T>::segTree(int*, int)':
horses.cpp:31:17: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   31 |             int x = (int)pow(2,ceil(log2(siz)));
      |                 ^
horses.cpp:6:6: note: shadowed declaration is here
    6 | int *x;
      |      ^
horses.cpp: In constructor 'segTreeMax<T>::segTreeMax(int*, int)':
horses.cpp:93:17: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   93 |             int x = (int)pow(2,ceil(log2(siz)));
      |                 ^
horses.cpp:6:6: note: shadowed declaration is here
    6 | int *x;
      |      ^
horses.cpp: In function 'int finans()':
horses.cpp:153:35: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  153 |             int cury = stmax.query((*it).first,(*it).second);
      |                        ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
horses.cpp:171:12: warning: conversion from 'long long int' to 'double' may change value [-Wconversion]
  171 |         if(curr>1e9){
      |            ^~~~
horses.cpp:176:36: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  176 |     return (1LL*st.query(0,mx)*mxy)%mod;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 0 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 592 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 2 ms 336 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 0 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 508 KB Output is correct
21 Correct 1 ms 436 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 2 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 2 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 3 ms 336 KB Output is correct
32 Correct 2 ms 336 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 21576 KB Output is correct
2 Correct 87 ms 21576 KB Output is correct
3 Correct 90 ms 23624 KB Output is correct
4 Correct 81 ms 21624 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 436 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 516 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 2 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 2 ms 336 KB Output is correct
33 Correct 47 ms 24876 KB Output is correct
34 Correct 30 ms 24668 KB Output is correct
35 Correct 57 ms 31568 KB Output is correct
36 Correct 55 ms 31816 KB Output is correct
37 Correct 258 ms 23100 KB Output is correct
38 Correct 67 ms 35400 KB Output is correct
39 Execution timed out 1556 ms 22608 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 504 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 504 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 440 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 508 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 508 KB Output is correct
25 Correct 2 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 3 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 2 ms 560 KB Output is correct
30 Correct 2 ms 336 KB Output is correct
31 Correct 2 ms 456 KB Output is correct
32 Correct 2 ms 672 KB Output is correct
33 Correct 72 ms 24840 KB Output is correct
34 Correct 87 ms 21576 KB Output is correct
35 Correct 92 ms 27556 KB Output is correct
36 Correct 78 ms 29376 KB Output is correct
37 Correct 53 ms 24684 KB Output is correct
38 Correct 39 ms 24820 KB Output is correct
39 Correct 59 ms 31568 KB Output is correct
40 Correct 61 ms 31560 KB Output is correct
41 Correct 257 ms 23116 KB Output is correct
42 Correct 78 ms 35412 KB Output is correct
43 Execution timed out 1554 ms 22680 KB Time limit exceeded
44 Halted 0 ms 0 KB -