oj.uz

Submission #576515

# Submission time Handle Problem Language Result Execution time Memory
576515 2022-06-13T07:06:30 Z ammar124 Fountain (eJOI20_fountain) C++14
60 / 100
 1500 ms 3268 KB 
#include <bits/stdc++.h>
#define endl '\n'
#define ll long long
using namespace std;
int const maxin = 1e5+6;
int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int a,q;
    bool flag = true ;
    cin>>a>>q;
    pair<ll , ll> arr[a];
    arr[0].first = 0;
    for(int i=1;i<a+1;i++)
    {
        cin>>arr[i].first>>arr[i].second;
        if(arr[i-1].first >= arr[i].first)
            flag = false ;
    }
    if(flag)
    {
        ll prf[a+1] = {0};
        for(int i=1;i<a+1;i++)
        {
            prf[i] = prf[i-1] + arr[i].second;
        }
        while(q--)
        {
            ll x,y;
            cin>>x>>y;
            y+=prf[x-1];
            if(y > prf[a])
                cout<<0<<endl;
            else
                cout<<lower_bound(prf,prf+a+1,y)-prf<<endl;
        }
    }
    else
    {
        while(q--)
        {
            ll x,y;
            cin>>x>>y;
            ll last = arr[x].first;
            y-=arr[x].second;
            if(y <= 0)
                cout<<x<<endl;
            else
            {
                for(int i=x+1;i<a+1;i++)
                {
                    if(arr[i].first > last)
                    {
                        last = arr[i].first;
                        y-=arr[i].second;
                    }
                    if(y <= 0)
                    {
                        cout<<i<<endl;
                        break;
                    }
                }
                if(y > 0)
                    cout<<0<<endl;
            }
        }
    }
    return 0;
}

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 3268 KB Output is correct
2 Correct 79 ms 3144 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 85 ms 3268 KB Output is correct
9 Correct 79 ms 3144 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Execution timed out 1548 ms 1548 KB Time limit exceeded
12 Halted 0 ms 0 KB -