oj.uz

답안 #1107744

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1107744 2024-11-02T04:36:24 Z Aviansh 말 (IOI15_horses) C++17
54 / 100
 1500 ms 35168 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--;
            if(curr>=1e9){
                break;
            }
            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(it);
                    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(it);
                    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:163:16: warning: conversion from 'long long int' to 'double' may change value [-Wconversion]
  163 |             if(curr>=1e9){
      |                ^~~~
horses.cpp:174:12: warning: conversion from 'long long int' to 'double' may change value [-Wconversion]
  174 |         if(curr>=1e9){
      |            ^~~~
horses.cpp:179:36: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  179 |     return (1LL*st.query(0,mx)*mxy)%mod;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 0 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 428 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 508 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 336 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 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 504 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 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 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 2 ms 504 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 2 ms 336 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 2 ms 336 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 72 ms 21528 KB Output is correct
2 Correct 96 ms 23648 KB Output is correct
3 Correct 96 ms 23748 KB Output is correct
4 Correct 81 ms 21576 KB Output is correct

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 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 508 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 0 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 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 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 2 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 1 ms 336 KB Output is correct
33 Correct 49 ms 20852 KB Output is correct
34 Correct 30 ms 20808 KB Output is correct
35 Correct 62 ms 26460 KB Output is correct
36 Correct 59 ms 29256 KB Output is correct
37 Correct 275 ms 22300 KB Output is correct
38 Correct 75 ms 35168 KB Output is correct
39 Execution timed out 1560 ms 22812 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# 결과 실행 시간 메모리 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 444 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 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 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 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 2 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 71 ms 25184 KB Output is correct
34 Correct 101 ms 28180 KB Output is correct
35 Correct 88 ms 25612 KB Output is correct
36 Correct 72 ms 27712 KB Output is correct
37 Correct 49 ms 24392 KB Output is correct
38 Correct 31 ms 24148 KB Output is correct
39 Correct 51 ms 20748 KB Output is correct
40 Correct 54 ms 29256 KB Output is correct
41 Correct 262 ms 22240 KB Output is correct
42 Correct 79 ms 34972 KB Output is correct
43 Execution timed out 1570 ms 22608 KB Time limit exceeded
44 Halted 0 ms 0 KB -