Submission #466886

#	Time	Username	Problem	Language	Result	Execution time	Memory
466886		TlenekWodoru	Fountain (eJOI20_fountain)	C++14	0 / 100	1586 ms	6040 KiB

fountain

#include <bits/stdc++.h>
using namespace std;
int srednica[100009];
int pojemnosc[100009];
int graf[100009];
int main()
{ ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int n,m;
    cin>>n>>m;
    for(int i=1;i<=n;i++)
    {
        int r,l;
        cin>>r>>l;
        srednica[i]=r;
        pojemnosc[i]=l;
    }
    map<int,int>M;
    M[1000000009]=0;
    for(int i=n;i>=1;i--)
    {
        int r=srednica[i];
        int l=pojemnosc[i];
        graf[i]=M.upper_bound(r)->second;
        M[r]=i;
    }
///-=-=-==-==-=-==-==-=-=-==-=-==-==-==-=-==-==-=-==-=-==-==-=-=-=
///-==-=--==-==-=-==-==--==--==-==-=-==-==-=-==-==-==-=-==-==-=-==-
    /**cout<<endl<<endl;
    for(int i=0;i<=n;i++)
    {
        cout<<endl<<"i="<<i<<"| ";
        for(int j=0;j<10;j++)
        {
            cout<<V[i][j]<<" ";
        }
    }
    cout<<endl;
    cout<<endl;
    for(int i=0;i<=n;i++)
    {
        cout<<endl<<"i="<<i<<"| ";
        for(int j=0;j<10;j++)
        {
            cout<<V2[i][j]<<" ";
        }
    }
    cout<<endl<<endl;**/
///-=-==-=-==-=-==-=-==-==-=-===-=-==-==-=-==-=-==-==--=-=
    vector<int>odp;
    for(int i=1;i<=m;i++)
    {
        int ind;
        int k;
        cin>>ind>>k;
        while(ind!=0)
        {
            if(k>pojemnosc[ind])
            {
                k-=pojemnosc[ind];
                ind=graf[ind];
            }
            else
            {
                break;
            }
        }
        odp.push_back(ind);
    }
    for(int i=0;i<odp.size();i++)
    {
        cout<<odp[i]<<endl;
    }
    return 0;
}
/**
10 100
1 1
2 1
3 1
4 2
5 2
6 2
7 3
8 3
9 3
10 4

**/

Compilation message (stderr)

fountain.cpp: In function 'int main()':
fountain.cpp:22:13: warning: unused variable 'l' [-Wunused-variable]
   22 |         int l=pojemnosc[i];
      |             ^
fountain.cpp:69:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |     for(int i=0;i<odp.size();i++)
      |                 ~^~~~~~~~~~~

• Subtask 1: 0 / 30
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40