Submission #657298

#	Time	Username	Problem	Language	Result	Execution time	Memory
657298		Banan	Fountain (eJOI20_fountain)	C++17	30 / 100	1586 ms	3940 KiB

fountain

#include <bits/stdc++.h>
using namespace std;

using ll = long long;
#define int long long
#define double long double
#define endl '\n'
#define sz(a) (int)a.size()
#define pb push_back
#define fs first
#define sc second
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
int const INF = LONG_LONG_MAX;

int n, q, d[200005], c[200005];

void solve()
{
    cin>>n>>q;
    for(int i=1;i<=n;i++)
    {
        cin>>d[i]>>c[i];
    }
    d[n+1]=INF;
    c[n+1]=INF;
    while(q--)
    {
        int r, v;
        cin>>r>>v;
        bool b=1;
        while(v-c[r]>0)
        {
            v-=c[r];
            int k=1;
            while(d[r]>=d[r+k])
            {
                k++;
            }
            r+=k;
            if(r>n){b=0;break;}
        }
        if(b){cout<<r<<endl;}else{cout<<0<<endl;}
    }
}

int32_t main()
{
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int tc=1;
    //cin>>tc;
    while(tc--)
    {
        solve();
    }
    return 0;
}

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