Submission #541312

#	Time	Username	Problem	Language	Result	Execution time	Memory
541312		LittleOrange	Selling RNA Strands (JOI16_selling_rna)	C++17	0 / 100	1572 ms	8536 KiB

selling_rna

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int main(){
    ios::sync_with_stdio(0);cin.tie(0);
    int n,m;
    cin >> n >> m;
    vector<pair<string,int>> source(n);
    vector<pair<string,int>> rsource(n);
    for (int i = 0;i<n;i++){
        cin >> source[i].first;
        source[i].second = i;
        rsource[i] = source[i];
        reverse(rsource[i].first.begin(),rsource[i].first.end());
    }
    sort(source.begin(),source.end());
    sort(rsource.begin(),rsource.end());
    vector<int> t(n,-1);
    int cur = 1;
    while (m--){
        string p,q;
        cin >> p >> q;
        int ans = 0;
        reverse(q.begin(),q.end());
        auto a = lower_bound(source.begin(),source.end(),make_pair(p,0));
        p[p.size()-1]++;
        auto b = lower_bound(source.begin(),source.end(),make_pair(p,0));
        for (;a!=b;a++){
            t[(*a).second] = cur;
        }
        a = lower_bound(rsource.begin(),rsource.end(),make_pair(q,0));
        q[q.size()-1]++;
        b = lower_bound(rsource.begin(),rsource.end(),make_pair(q,0));
        for (;a!=b;a++){
            if (t[(*a).second] == cur){
                ans++;
            }
        }
        cout << ans << "\n";
    }
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 40