Submission #751255

#	Time	Username	Problem	Language	Result	Execution time	Memory
751255		bgnbvnbv	Volontiranje (COCI21_volontiranje)	C++14	10 / 110	16 ms	23888 KiB

Main

#include<bits/stdc++.h>
#define TASKNAME "codeforce"
#define pb push_back
#define pli pair<int,int>
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
using ll=int;
const ll maxN=1e6+10;
const ll mod=1e9+7;
ll n,a[maxN],e[maxN];
vector<ll>vec[maxN];
void solve()
{
    cin >> n;
    for(int i=1;i<=n;i++) cin >> a[i];
    ll m=0;
    for(int i=1;i<=n;i++)
    {
        ll x=lower_bound(e+1,e+m+1,a[i])-e;
        if(x>m) m++;
        vec[x].pb(i);
        e[x]=a[i];
    }
    for(int i=1;i<=m;i++) reverse(vec[i].begin(),vec[i].end());
    vector<vector<ll>> ans;
    ll cnt=2;
    while(vec[m].size())
    {
        bool ok=true;
        ll v=vec[m].back();
        vec[m].pop_back();
        ll cur=v;
        for(int i=m-1;i>=1;i--)
        {
            while(vec[i].size()>0&&a[vec[i].back()]>a[v])
            {
                vec[i].pop_back();
            }
            if(vec[i].size()>0&&vec[i].back()<v) v=vec[i].back();
            else {ok=false;break;}
        }
        if(ok)
        {
            vector<ll> cc;
            cc.pb(cur);
            for(int i=m-1;i>=1;i--)
            {
                cc.pb(vec[i].back());
                vec[i].pop_back();
            }
            reverse(cc.begin(),cc.end());
            ans.pb(cc);
        }
    }
    cout << ans.size()<<' '<<m<<'\n';
    for(auto zz:ans)
    {
        for(auto vc:zz) cout << vc<<' ';
        cout << '\n';
    }
}
int main()
{
    fastio
    //freopen(TASKNAME".INP","r",stdin);
    //freopen(TASKNAME".OUT","w",stdout);
    solve();
}

Compilation message (stderr)

Main.cpp: In function 'void solve()':
Main.cpp:28:8: warning: unused variable 'cnt' [-Wunused-variable]
   28 |     ll cnt=2;
      |        ^~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 60