oj.uz

Submission #1099851

# Submission time Handle Problem Language Result Execution time Memory
1099851 2024-10-12T05:36:48 Z model_code Hieroglyphs (IOI24_hieroglyphs) C++17
29 / 100
 92 ms 52516 KB 
// incorrect/felix-radewoosh-56-eliminateprefix.cpp

//Mateusz Radecki, O(n+m)
#include "hieroglyphs.h"

#include <bits/stdc++.h>
using namespace std;

using ll=long long;
using pii=pair<int,int>;
using pll=pair<ll,ll>;
using vi=vector<int>;
using vll=vector<ll>;
const int nax=1007*1000;

int n, m;

int ilea[nax];
int ileb[nax];

int potrzebuje[nax];

vi pozy[nax];

int potrzebujewa[nax];
int potrzebujewb[nax];

vi licz_harde(vi a, vi b)
{
	n=a.size();
	m=b.size();
	for (int i=0; i<nax; i++)
		ilea[i]=ileb[i]=0;
	for (int i : a)
		ilea[i]++;
	for (int i : b)
		ileb[i]++;
	vector<pii> za, zb;
	for (int i=0; i<n; i++)
		if (ilea[a[i]]<=ileb[a[i]])
			za.push_back({a[i], i});
	for (int i=0; i<m; i++)
		if (ilea[b[i]]>ileb[b[i]])
			zb.push_back({b[i], i});
	
	{
		potrzebujewa[zb.size()]=n;
		int wsk=zb.size();
		for (int i=n-1; i>=0; i--)
		{
			if (wsk && zb[wsk-1].first==a[i])
			{
				wsk--;
				potrzebujewa[wsk]=i;
			}
		}
	}
	{
		potrzebujewb[za.size()]=m;
		int wsk=za.size();
		for (int i=m-1; i>=0; i--)
		{
			if (wsk && za[wsk-1].first==b[i])
			{
				wsk--;
				potrzebujewb[wsk]=i;
			}
		}
	}
	
	vi ret;
	int wska=0;
	int wskb=0;
	int gdz=0;
	for (int i : a)
	{
		if (wska<(int)za.size() && i==za[wska].first)
		{
			while(gdz<m && b[gdz]!=i)
				gdz++;
			if (gdz==m)
				return {-1};
			gdz++;
			ret.push_back(i);
			wska++;
		}
		if (wskb<(int)zb.size() && i==zb[wskb].first && gdz<=zb[wskb].second && potrzebujewb[wska]>zb[wskb].second)
		{
			ret.push_back(i);
			gdz=zb[wskb].second+1;
			wskb++;
		}
	}
	
	if ((int)ret.size()<(int)za.size()+(int)zb.size())
		return {-1};
	
	return ret;
}

vi licz_proste(vi a, vi b, int numwy)
{
	n=a.size();
	m=b.size();
	for (int i=0; i<nax; i++)
		ilea[i]=ileb[i]=0;
	for (int i : a)
		ilea[i]++;
	for (int i : b)
		ileb[i]++;
	vector<pii> za;
	for (int i=0; i<n; i++)
		if (ilea[a[i]]<=ileb[a[i]]-numwy)
			za.push_back({a[i], i});
	
	{
		potrzebuje[za.size()]=m;
		int wsk=za.size();
		for (int i=m-1; i>=0; i--)
		{
			if (wsk && za[wsk-1].first==b[i])
			{
				wsk--;
				potrzebuje[wsk]=i;
			}
		}
		if (wsk)
			return {-1};
	}
	
	for (int i=0; i<nax; i++)
		pozy[i].clear();
	for (int i=m-1; i>=0; i--)
		pozy[b[i]].push_back(i);
	
	vi ret;
	int wsk=0;
	int gdz=0;
	for (int i : a)
	{
		if (wsk<(int)za.size() && i==za[wsk].first)
		{
			while(gdz<m && b[gdz]!=i)
				gdz++;
			assert(gdz<m);
			gdz++;
			ret.push_back(i);
			wsk++;
		}
		else
		{
			while(!pozy[i].empty() && pozy[i].back()<gdz)
				pozy[i].pop_back();
			if (!pozy[i].empty() && potrzebuje[wsk]>pozy[i].back())
			{
				ret.push_back(i);
				gdz=pozy[i].back()+1;
			}
		}
	}
	
	return ret;
}

vi prosty(vi a, vi b)
{
	n=a.size();
	m=b.size();
	for (int i=0; i<nax; i++)
		pozy[i].clear();
	for (int i=m-1; i>=0; i--)
		pozy[b[i]].push_back(i);
	int gdz=0;
	vi ret;
	for (int i : a)
	{
		while(!pozy[i].empty() && pozy[i].back()<gdz)
			pozy[i].pop_back();
		if (!pozy[i].empty())
		{
			ret.push_back(i);
			gdz=pozy[i].back()+1;
		}
	}
	return ret;
}

int zawiera(vi kto, vi kogo)
{
	int wsk=0;
	for (int i : kto)
		if (wsk<(int)kogo.size() && i==kogo[wsk])
			wsk++;
	return wsk==(int)kogo.size();
}

vi _ucs(vi a, vi b)
{
	vi odp=licz_harde(a, b);
	vi raz=licz_proste(a, b, 0);
	vi dwa=licz_proste(b, a, 1);
	reverse(a.begin(), a.end());
	reverse(b.begin(), b.end());
	vi trz=licz_proste(a, b, 0);
	vi czt=licz_proste(b, a, 1);
	reverse(a.begin(), a.end());
	reverse(b.begin(), b.end());
	reverse(trz.begin(), trz.end());
	reverse(czt.begin(), czt.end());
	
	vi x=prosty(a, b);
	vi y=prosty(b, a);
	reverse(a.begin(), a.end());
	reverse(b.begin(), b.end());
	vi z=prosty(a, b);
	vi w=prosty(b, a);
	reverse(a.begin(), a.end());
	reverse(b.begin(), b.end());
	reverse(z.begin(), z.end());
	reverse(w.begin(), w.end());
	
	if (zawiera(odp, raz) && zawiera(odp, dwa) && zawiera(odp, trz) && zawiera(odp, czt) && zawiera(odp, x) && zawiera(odp, y) && zawiera(odp, z) && zawiera(odp, w))
		return odp;
	return {-1};
}

vi ucs(vi a, vi b) {
	//return _ucs(a, b);

    vi cpref;
    vi csuf;
    
    while (!a.empty() && !b.empty() && a.back() == b.back()) {
        csuf.push_back(a.back());
        a.pop_back();
        b.pop_back();
    }

    reverse(csuf.begin(), csuf.end());

    reverse(a.begin(), a.end());
    reverse(b.begin(), b.end());

    while (!a.empty() && !b.empty() && a.back() == b.back()) {
        cpref.push_back(a.back());
        a.pop_back();
        b.pop_back();
    }


    reverse(a.begin(), a.end());
    reverse(b.begin(), b.end());

    vi rc = _ucs(a, b);
    if (rc == vi({-1})) return rc;

    vi c;
    for (int x : cpref) c.push_back(x);
    for (int x : rc) c.push_back(x);
    for (int x : csuf) c.push_back(x);
    return c;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 37480 KB Output is correct
2 Correct 12 ms 37468 KB Output is correct
3 Correct 13 ms 37484 KB Output is correct

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 37464 KB Output is correct
2 Correct 13 ms 37468 KB Output is correct
3 Correct 13 ms 37500 KB Output is correct
4 Correct 11 ms 37340 KB Output is correct
5 Correct 54 ms 40092 KB Output is correct
6 Correct 66 ms 47496 KB Output is correct
7 Correct 27 ms 39376 KB Output is correct

Subtask #2
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 37464 KB Output is correct
2 Correct 13 ms 37468 KB Output is correct
3 Correct 13 ms 37500 KB Output is correct
4 Correct 11 ms 37340 KB Output is correct
5 Correct 54 ms 40092 KB Output is correct
6 Correct 66 ms 47496 KB Output is correct
7 Correct 27 ms 39376 KB Output is correct
8 Correct 68 ms 46132 KB Output is correct
9 Correct 69 ms 46384 KB Output is correct
10 Correct 66 ms 46324 KB Output is correct
11 Correct 70 ms 46228 KB Output is correct
12 Correct 66 ms 46772 KB Output is correct
13 Correct 66 ms 46524 KB Output is correct
14 Correct 68 ms 46236 KB Output is correct
15 Correct 66 ms 46644 KB Output is correct
16 Correct 70 ms 46408 KB Output is correct
17 Correct 74 ms 46408 KB Output is correct
18 Correct 13 ms 37468 KB Output is correct
19 Correct 13 ms 37380 KB Output is correct
20 Correct 14 ms 37468 KB Output is correct
21 Correct 19 ms 37680 KB Output is correct
22 Correct 47 ms 43368 KB Output is correct
23 Correct 69 ms 47412 KB Output is correct
24 Correct 67 ms 47600 KB Output is correct
25 Correct 71 ms 47604 KB Output is correct
26 Correct 55 ms 43812 KB Output is correct
27 Correct 67 ms 46392 KB Output is correct
28 Correct 92 ms 46392 KB Output is correct
29 Correct 64 ms 45624 KB Output is correct
30 Correct 62 ms 45544 KB Output is correct
31 Correct 72 ms 46252 KB Output is correct
32 Correct 59 ms 45236 KB Output is correct
33 Incorrect 66 ms 45980 KB Output isn't correct
34 Halted 0 ms 0 KB -

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 40140 KB Output is correct
2 Correct 34 ms 39884 KB Output is correct
3 Correct 50 ms 48064 KB Output is correct
4 Correct 45 ms 47952 KB Output is correct
5 Correct 66 ms 50464 KB Output is correct
6 Correct 26 ms 40256 KB Output is correct
7 Correct 19 ms 37468 KB Output is correct
8 Correct 14 ms 37468 KB Output is correct
9 Correct 14 ms 37468 KB Output is correct
10 Correct 13 ms 37468 KB Output is correct
11 Correct 12 ms 37468 KB Output is correct
12 Correct 13 ms 37480 KB Output is correct
13 Correct 13 ms 37480 KB Output is correct
14 Correct 19 ms 37468 KB Output is correct
15 Correct 14 ms 37464 KB Output is correct
16 Correct 44 ms 45024 KB Output is correct
17 Correct 46 ms 45064 KB Output is correct
18 Correct 28 ms 40024 KB Output is correct
19 Correct 28 ms 40184 KB Output is correct
20 Correct 60 ms 42716 KB Output is correct
21 Correct 28 ms 41156 KB Output is correct
22 Correct 60 ms 45980 KB Output is correct
23 Correct 39 ms 46756 KB Output is correct
24 Correct 67 ms 50272 KB Output is correct
25 Correct 53 ms 45332 KB Output is correct
26 Correct 50 ms 50860 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 46132 KB Output is correct
2 Correct 69 ms 46384 KB Output is correct
3 Correct 66 ms 46324 KB Output is correct
4 Correct 70 ms 46228 KB Output is correct
5 Correct 66 ms 46772 KB Output is correct
6 Correct 66 ms 46524 KB Output is correct
7 Correct 68 ms 46236 KB Output is correct
8 Correct 66 ms 46644 KB Output is correct
9 Correct 70 ms 46408 KB Output is correct
10 Correct 74 ms 46408 KB Output is correct
11 Correct 13 ms 37468 KB Output is correct
12 Correct 13 ms 37380 KB Output is correct
13 Correct 14 ms 37468 KB Output is correct
14 Correct 19 ms 37680 KB Output is correct
15 Correct 47 ms 43368 KB Output is correct
16 Correct 69 ms 47412 KB Output is correct
17 Correct 67 ms 47600 KB Output is correct
18 Correct 71 ms 47604 KB Output is correct
19 Correct 55 ms 43812 KB Output is correct
20 Correct 51 ms 40140 KB Output is correct
21 Correct 34 ms 39884 KB Output is correct
22 Correct 50 ms 48064 KB Output is correct
23 Correct 45 ms 47952 KB Output is correct
24 Correct 66 ms 50464 KB Output is correct
25 Correct 26 ms 40256 KB Output is correct
26 Correct 17 ms 37624 KB Output is correct
27 Correct 14 ms 37464 KB Output is correct
28 Correct 15 ms 37468 KB Output is correct
29 Correct 16 ms 37464 KB Output is correct
30 Correct 16 ms 37572 KB Output is correct
31 Correct 20 ms 37684 KB Output is correct
32 Correct 17 ms 37724 KB Output is correct
33 Correct 17 ms 37720 KB Output is correct
34 Correct 28 ms 40628 KB Output is correct
35 Correct 56 ms 52076 KB Output is correct
36 Correct 78 ms 51740 KB Output is correct
37 Correct 83 ms 52516 KB Output is correct
38 Correct 58 ms 52276 KB Output is correct
39 Correct 76 ms 52284 KB Output is correct
40 Correct 65 ms 48116 KB Output is correct
41 Correct 65 ms 45196 KB Output is correct
42 Correct 40 ms 42044 KB Output is correct
43 Correct 47 ms 41908 KB Output is correct
44 Correct 36 ms 41936 KB Output is correct
45 Correct 39 ms 41980 KB Output is correct
46 Correct 63 ms 44084 KB Output is correct
47 Correct 59 ms 43648 KB Output is correct
48 Correct 63 ms 43808 KB Output is correct
49 Correct 79 ms 43532 KB Output is correct
50 Correct 64 ms 43524 KB Output is correct
51 Correct 59 ms 43360 KB Output is correct
52 Correct 59 ms 43676 KB Output is correct
53 Correct 82 ms 43428 KB Output is correct
54 Correct 60 ms 43264 KB Output is correct
55 Correct 25 ms 39380 KB Output is correct
56 Correct 76 ms 50644 KB Output is correct
57 Correct 53 ms 49128 KB Output is correct
58 Correct 57 ms 50724 KB Output is correct
59 Correct 58 ms 50208 KB Output is correct
60 Correct 63 ms 47236 KB Output is correct

Subtask #5
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 37468 KB Output is correct
2 Correct 14 ms 37468 KB Output is correct
3 Correct 14 ms 37468 KB Output is correct
4 Correct 13 ms 37468 KB Output is correct
5 Correct 12 ms 37468 KB Output is correct
6 Correct 13 ms 37480 KB Output is correct
7 Correct 13 ms 37480 KB Output is correct
8 Correct 19 ms 37468 KB Output is correct
9 Correct 14 ms 37464 KB Output is correct
10 Correct 17 ms 37624 KB Output is correct
11 Correct 14 ms 37464 KB Output is correct
12 Correct 15 ms 37468 KB Output is correct
13 Correct 16 ms 37464 KB Output is correct
14 Correct 16 ms 37572 KB Output is correct
15 Correct 20 ms 37684 KB Output is correct
16 Correct 17 ms 37724 KB Output is correct
17 Correct 17 ms 37720 KB Output is correct
18 Correct 16 ms 37720 KB Output is correct
19 Correct 14 ms 37800 KB Output is correct
20 Correct 14 ms 37580 KB Output is correct
21 Correct 15 ms 37724 KB Output is correct
22 Correct 15 ms 37468 KB Output is correct
23 Correct 14 ms 37468 KB Output is correct
24 Incorrect 21 ms 37732 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #6
0.0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 37480 KB Output is correct
2 Correct 12 ms 37468 KB Output is correct
3 Correct 13 ms 37484 KB Output is correct
4 Correct 13 ms 37464 KB Output is correct
5 Correct 13 ms 37468 KB Output is correct
6 Correct 13 ms 37500 KB Output is correct
7 Correct 11 ms 37340 KB Output is correct
8 Correct 54 ms 40092 KB Output is correct
9 Correct 66 ms 47496 KB Output is correct
10 Correct 27 ms 39376 KB Output is correct
11 Correct 68 ms 46132 KB Output is correct
12 Correct 69 ms 46384 KB Output is correct
13 Correct 66 ms 46324 KB Output is correct
14 Correct 70 ms 46228 KB Output is correct
15 Correct 66 ms 46772 KB Output is correct
16 Correct 66 ms 46524 KB Output is correct
17 Correct 68 ms 46236 KB Output is correct
18 Correct 66 ms 46644 KB Output is correct
19 Correct 70 ms 46408 KB Output is correct
20 Correct 74 ms 46408 KB Output is correct
21 Correct 13 ms 37468 KB Output is correct
22 Correct 13 ms 37380 KB Output is correct
23 Correct 14 ms 37468 KB Output is correct
24 Correct 19 ms 37680 KB Output is correct
25 Correct 47 ms 43368 KB Output is correct
26 Correct 69 ms 47412 KB Output is correct
27 Correct 67 ms 47600 KB Output is correct
28 Correct 71 ms 47604 KB Output is correct
29 Correct 55 ms 43812 KB Output is correct
30 Correct 67 ms 46392 KB Output is correct
31 Correct 92 ms 46392 KB Output is correct
32 Correct 64 ms 45624 KB Output is correct
33 Correct 62 ms 45544 KB Output is correct
34 Correct 72 ms 46252 KB Output is correct
35 Correct 59 ms 45236 KB Output is correct
36 Incorrect 66 ms 45980 KB Output isn't correct
37 Halted 0 ms 0 KB -