Submission #1050060

# Submission time Handle Problem Language Result Execution time Memory
1050060 2024-08-09T07:07:11 Z hungeazy Zoltan (COCI16_zoltan) C++17
140 / 140
83 ms 23496 KB
/*
* @Author: hungeazy
* @Date:   2024-08-09 13:41:17
* @Last Modified by:   hungeazy
* @Last Modified time: 2024-08-09 14:05:48
*/
#include <bits/stdc++.h>
// #pragma GCC optimize("O3")  
// #pragma GCC optimize("unroll-loops")  
// #pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")  
using namespace std;
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define int long long
#define ull unsigned long long
#define sz(x) x.size()
#define sqr(x) (1LL * (x) * (x))
#define all(x) x.begin(), x.end()
#define fill(f,x) memset(f,x,sizeof(f))
#define FOR(i,l,r) for(int i=l;i<=r;i++)
#define FOD(i,r,l) for(int i=r;i>=l;i--)
#define ii pair<int,int>
#define iii pair<int,ii>
#define di pair<ii,ii>
#define vi vector<int>
#define vii vector<ii>
#define mii map<int,int>
#define fi first
#define se second
#define pb push_back
#define MOD 1000000007
#define __lcm(a,b) (1ll * ((a) / __gcd((a), (b))) * (b))
#define YES cout << "YES\n"
#define NO cout << "NO\n"
#define MASK(i) (1LL << (i))
#define c_bit(i) __builtin_popcountll(i)
#define BIT(x,i) ((x) & MASK(i))
#define SET_ON(x,i) ((x) | MASK(i))
#define SET_OFF(x,i) ((x) & ~MASK(i))
#define oo 1e18
#define name ""
#define endl '\n'
#define time() cerr << endl << "-------------Time:" << 1000.0 * clock() / CLOCKS_PER_SEC << "ms.";
template<typename T> bool maximize(T &res, const T &val) { if (res < val){ res = val; return true; }; return false; }
template<typename T> bool minimize(T &res, const T &val) { if (res > val){ res = val; return true; }; return false; }
const int N = (int)1e6+10;
int a[N],n;

namespace hungeazy {

	ii bit[N][2];
	int cnt[N][2],f[N][2];
	vi v;

	void update(int pos, int type, int val, int way)
	{
		int id = pos;
		while (id <= v.size())
		{
			if (bit[id][type].fi < val) bit[id][type] = {val,way};
			else if (bit[id][type].fi == val) (bit[id][type].se += way) %= MOD;
			id += (id&(-id));
		}
	}

	ii get(int pos, int type)
	{
		int id = pos;
		ii ans = {0,1};
		while (id)
		{
			if (ans.fi == bit[id][type].fi) (ans.se += bit[id][type].se) %= MOD;
			else if (ans.fi < bit[id][type].fi) ans = bit[id][type];
			id -= (id&(-id));
		}
		return ans;
	}

	void solve(void)
	{
		FOR(i,1,n) v.pb(a[i]);
		sort(all(v));
		v.erase(unique(all(v)),v.end());
		FOR(i,1,n) a[i] = lower_bound(all(v),a[i])-v.begin()+1;
		ii ans = {0,0};
		FOD(i,n,1)
		{
			ii val = get(a[i]-1,0);
			int w = val.se;
			if (f[a[i]][0] < val.fi+1)
			{
				f[a[i]][0] = val.fi+1;
				cnt[a[i]][0] = w;
				update(a[i],0,f[a[i]][0],cnt[a[i]][0]);
			}
			else if (f[a[i]][0] == val.fi+1)
			{
				(cnt[a[i]][0] += w) %= MOD;
				update(a[i],0,f[a[i]][0],val.se);
			}
			val = get(v.size()-a[i],1);
			(w *= val.se) %= MOD;
			if (f[a[i]][1] < val.fi+1)
			{
				f[a[i]][1] = val.fi+1;
				cnt[a[i]][1] = val.se;
				update(v.size()-a[i]+1,1,f[a[i]][1],cnt[a[i]][1]);
			}
			else if (f[a[i]][1] == val.fi+1)
			{
				(cnt[a[i]][1] += val.se) %= MOD;
				update(v.size()-a[i]+1,1,f[a[i]][1],val.se);
			}
			if (f[a[i]][0]+f[a[i]][1]-1 > ans.fi) ans = {f[a[i]][0]+f[a[i]][1]-1,w};
			else if (f[a[i]][0]+f[a[i]][1]-1 == ans.fi) (ans.se += w) %= MOD;
		}
		FOR(i,ans.fi+1,n) ans.se = 2*ans.se%MOD;
		cout << ans.fi << " " << ans.se;
	}
	
}

signed main()
{
    fast;
    if (fopen(name".inp","r"))
    {
    	freopen(name".inp","r",stdin);
    	freopen(name".out","w",stdout);
    }
    cin >> n;
    FOR(i,1,n) cin >> a[i];
    hungeazy::solve();
    time();
    return 0;
}
// ██░ ██  █    ██  ███▄    █   ▄████
//▓██░ ██▒ ██  ▓██▒ ██ ▀█   █  ██▒ ▀█▒
//▒██▀▀██░▓██  ▒██░▓██  ▀█ ██▒▒██░▄▄▄░
//░▓█ ░██ ▓▓█  ░██░▓██▒  ▐▌██▒░▓█  ██▓
//░▓█▒░██▓▒▒█████▓ ▒██░   ▓██░░▒▓███▀▒
// ▒ ░░▒░▒░▒▓▒ ▒ ▒ ░ ▒░   ▒ ▒  ░▒   ▒
// ▒ ░▒░ ░░░▒░ ░ ░ ░ ░░   ░ ▒░  ░   ░
// ░  ░░ ░ ░░░ ░ ░    ░   ░ ░ ░ ░   ░
// ░  ░  ░   ░              ░       ░

Compilation message

zoltan.cpp: In function 'void hungeazy::update(long long int, long long int, long long int, long long int)':
zoltan.cpp:57:13: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |   while (id <= v.size())
      |          ~~~^~~~~~~~~~~
zoltan.cpp: In function 'int main()':
zoltan.cpp:127:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  127 |      freopen(name".inp","r",stdin);
      |      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
zoltan.cpp:128:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  128 |      freopen(name".out","w",stdout);
      |      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 45 ms 18668 KB Output is correct
12 Correct 37 ms 15304 KB Output is correct
13 Correct 34 ms 14796 KB Output is correct
14 Correct 52 ms 15552 KB Output is correct
15 Correct 68 ms 19848 KB Output is correct
16 Correct 83 ms 23496 KB Output is correct
17 Correct 48 ms 19316 KB Output is correct
18 Correct 52 ms 19408 KB Output is correct
19 Correct 60 ms 19536 KB Output is correct
20 Correct 48 ms 19396 KB Output is correct