Submission #1185608

#	Time	Username	Problem	Language	Result	Execution time	Memory
1185608		dosts	Volontiranje (COCI21_volontiranje)	C++20	50 / 110	1095 ms	46488 KiB

Main

#include <bits/stdc++.h>
#define int long long
#define pii pair<int,int>
#define vi vector<int>
#define ff first
#define ss second
#define all(x) x.begin(),x.end()
#define sp << " " << 
using namespace std;

const int N = 3e5+10,MOD = 1e9+7,inf = 2e12;

struct FT {
    vi bit;
    int n;

    void put(int p,int v) {
        for (int i = p;i<=n;i+=i&-i) bit[i]=max(bit[i],v);
    }
    int get(int p) {
        int ans = 0;
        for (int i = p;i>0;i-=i&-i) ans=max(ans,bit[i]);
        return ans;
    }

    FT(int nn) {
        n = nn;
        bit.assign(n+1,0);
    }

    void reset() {
        bit.assign(n+1,0);
    }
};

void solve() {
    int n;
    cin >> n;
    vi a(n+1);
    vector<vi> ans;
    for (int i=1;i<=n;i++) cin >> a[i];
    int l = 0;
    vi dp(n+1,0);
    FT ft(n);
    for (int i=1;i<=n;i++) {
        dp[i] = ft.get(a[i])+1;
        ft.put(a[i],dp[i]);
    }
    l = *max_element(all(dp));
    while (1) {
        dp.assign(n+1,0);
        ft.reset();
        for (int i=1;i<=n;i++) {
            if (a[i] == inf) continue;
            dp[i] = ft.get(a[i])+1;
            ft.put(a[i],dp[i]);
        }
        int pos = 0;
        for (int i = n;i>=1;i--) {
            if (dp[i] == l) {
                pos = i;
                break;
            }
        }
        if (!pos) break;
        vi cur;
        int sea = l;
        for (int i = pos;i>=1;i--) {
            if (!sea) break;
            if (dp[i] == sea) {
                sea--;
                cur.push_back(i);
                a[i] = inf;
            }
        }
        reverse(all(cur));
        ans.push_back(cur);
    }
    cout << ans.size() sp l << endl;
    for (auto it : ans) {
        for (auto itt : it) cout << itt << ' ';
        cout << '\n';
    }
} 

signed main() {
    ios_base::sync_with_stdio(0);cin.tie(0);
    #ifdef Dodi
        freopen("in.txt","r",stdin);
        freopen("out.txt","w",stdout);
    #endif
    int t = 1;
    //cin >> t;
    while (t --> 0) solve();
} 

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