제출 #827850

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
827850		ayankarimova	Fountain (eJOI20_fountain)	C++14	30 / 100	124 ms	16444 KiB

fountain

#include<bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ll long long
const ll sz=100005;
ll l[sz], s[sz], ss[sz];
set<ll>st;
map<ll, ll>mp;
int main(){

    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    ll n, q;
    cin>>n>>q;
    for(int i=1; i<=n; i++){
        cin>>l[i]>>s[i];
        ss[i]=ss[i-1]+s[i];
        st.insert(ss[i]);
        mp[ss[i]]=i;
    }
    while(q--){
        ll in, k;
        cin>>in>>k;
        ll f=ss[in-1]+k;
        auto it=st.lower_bound(f);
        if(it==st.end()){
            cout<<0<<endl;
        }
        else{
            cout<<mp[*it]<<endl;
        }
    }
}

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