oj.uz

Submission #963541

# Submission time Handle Problem Language Result Execution time Memory
963541 2024-04-15T09:42:24 Z ksu2009en Snake Escaping (JOI18_snake_escaping) C++17
75 / 100
 1278 ms 65536 KB 
#pragma GCC optimize("O3")
#pragma GCC target("avx,avx2")

#include <iostream>
#include <vector>
#include <string>
#include <math.h>
#include <cmath>
#include <iomanip>
#include <cstdio>
#include <algorithm>
#include <numeric>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <deque>
#include <bitset>
#include <cstring>
#include <unordered_map>


using namespace std;
typedef long long ll;

ll const half = 7;

#define endl '\n'

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    ll l, q;
    cin >> l >> q;
    
    string a;
    cin >> a;
    
    vector<ll> pw(l + 1);
    pw[0] = 1;
    
    for(int i = 1; i < pw.size(); i++)
        pw[i] = pw[i - 1] * 3;
        
    vector<ll> dp, bit(pw[max(0ll, l - half)] + 1, -1), bin_to3((1ll << max(0ll, l - half)) + 1), from3_to_bin(pw[max(0ll, l - half)] + 1);
    
    for(int i = 0; i < (1 << max(0ll, l - half)); i++){
        ll cnt = 0;
        
        for(int j = max(0ll, l - half) - 1; j >= 0; j--){
            if((i >> j) & 1){
                cnt = (cnt + 1) * 3;
            }
            else
                cnt *= 3;
        }
        cnt /= 3;
        bin_to3[i] = cnt;
        from3_to_bin[cnt] = i;
        
    }
    
    for(int i = 0; i < pw[(max(0ll, l - half))]; i++){
        ll val = i;
        
        for(int j = 0; j < max(0ll, l - half); j++){
            if(val % 3 == 2){
                bit[i] = j;
                break;
            }
            
            val /= 3;
        }
    }
    
    vector<vector<bool>> sub(pw[half], vector<bool> ((1ll << half) + 1, true));
    
    for(int i = 0; i < pw[half]; i++){
        vector<ll> u;
        
        ll cur = pw[half];
        
        ll val = i;
        for(int i = half - 1; i >= 0; i--){
            cur /= 3;
            u.push_back(val / cur);
            val %= cur;
        }
        
        for(int j = 0; j < (1ll << half); j++){
            for(int k = 0; k < half; k++){
                if(u[u.size() - k - 1] == 2)
                    continue;
                
                if(u[u.size() - k - 1] != (j >> k) % 2){
                    sub[i][j] = false;
                    break;
                }
            }
        }
    }
    
    vector<pair<ll, ll>> quer;
    
    while(q--){
        string b;
        cin >> b;
        
        while(b.size() < l)
            b += "0";
        
        ll cnt = 0, pos = 0, c1 = 0;
        
        for(auto i: b){
            if(i == '0'){
                cnt *= 3;
            }
            else if(i == '1'){
                cnt = (cnt + 1) * 3;
            }
            else{
                cnt = (cnt + 2) * 3;
            }
            pos++;
            
            if(pos == half || (half > b.size() && pos == b.size()) ){
                c1 = cnt / 3;
            }
        }
        
        cnt /= 3;
        if(l > half){
            cnt %= pw[l - half];
        }
                
        quer.push_back({c1, cnt});
    }
        
    vector<ll> ans(quer.size());
    
    
    dp.resize(pw[max(0ll, l - half)] + 1);
    for(int i = 0; i < (1ll << min(half, l)); i++){
        if(l <= half){
            for(int j = 0; j < quer.size(); j++){
                if(sub[quer[j].first][i])
                    ans[j] += (a[i] - '0');
            }
            continue;
        }
        
        ll add = i * (1 << (l - half));
        for(int j = 0; j < pw[l - half]; j++){
            if(bit[j] == -1){
//                cout << j << ' ' << from3_to_bin[j] << ' ' << add << endl;
                dp[j] = (a[add + from3_to_bin[j]] - '0');
                continue;
            }
            
            dp[j] = 0;
            ll c1 = j - 2 * pw[bit[j]];
            dp[j] += dp[c1];
            
            c1 = j - pw[bit[j]];
            dp[j] += dp[c1];
        }
//
//        cout << i << endl;
//        for(int j = 0; j < pw[l - half]; j++)
//            cout << dp[j] << ' ';
//        cout << endl;
//
        for(int j = 0; j < quer.size(); j++){
            if(sub[quer[j].first][i]){
                
                ans[j] += dp[quer[j].second];
            }
        }
    }
    
    for(auto i: ans)
        cout << i << endl;
    
    return 0;
}

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:44:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |     for(int i = 1; i < pw.size(); i++)
      |                    ~~^~~~~~~~~~~
snake_escaping.cpp:111:24: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
  111 |         while(b.size() < l)
      |               ~~~~~~~~~^~~
snake_escaping.cpp:128:55: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  128 |             if(pos == half || (half > b.size() && pos == b.size()) ){
      |                                                   ~~~~^~~~~~~~~~~
snake_escaping.cpp:147:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  147 |             for(int j = 0; j < quer.size(); j++){
      |                            ~~^~~~~~~~~~~~~
snake_escaping.cpp:175:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  175 |         for(int j = 0; j < quer.size(); j++){
      |                        ~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 600 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 2 ms 600 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 600 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 600 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 2 ms 600 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 600 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 492 ms 27864 KB Output is correct
12 Correct 567 ms 28052 KB Output is correct
13 Correct 579 ms 27048 KB Output is correct
14 Correct 597 ms 27560 KB Output is correct
15 Correct 620 ms 28024 KB Output is correct
16 Correct 643 ms 27396 KB Output is correct
17 Correct 594 ms 27448 KB Output is correct
18 Correct 374 ms 28888 KB Output is correct
19 Correct 429 ms 26148 KB Output is correct
20 Correct 555 ms 27596 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 600 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 2 ms 600 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 600 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 492 ms 27864 KB Output is correct
12 Correct 567 ms 28052 KB Output is correct
13 Correct 579 ms 27048 KB Output is correct
14 Correct 597 ms 27560 KB Output is correct
15 Correct 620 ms 28024 KB Output is correct
16 Correct 643 ms 27396 KB Output is correct
17 Correct 594 ms 27448 KB Output is correct
18 Correct 374 ms 28888 KB Output is correct
19 Correct 429 ms 26148 KB Output is correct
20 Correct 555 ms 27596 KB Output is correct
21 Correct 556 ms 28084 KB Output is correct
22 Correct 600 ms 28212 KB Output is correct
23 Correct 632 ms 27908 KB Output is correct
24 Correct 651 ms 27104 KB Output is correct
25 Correct 665 ms 28968 KB Output is correct
26 Correct 656 ms 27708 KB Output is correct
27 Correct 688 ms 27704 KB Output is correct
28 Correct 356 ms 30132 KB Output is correct
29 Correct 441 ms 26208 KB Output is correct
30 Correct 584 ms 28124 KB Output is correct
31 Correct 639 ms 27956 KB Output is correct
32 Correct 668 ms 27960 KB Output is correct
33 Correct 527 ms 27272 KB Output is correct
34 Correct 678 ms 26984 KB Output is correct
35 Correct 684 ms 28128 KB Output is correct
36 Correct 297 ms 25972 KB Output is correct
37 Correct 561 ms 28392 KB Output is correct
38 Correct 472 ms 25912 KB Output is correct
39 Correct 631 ms 27312 KB Output is correct
40 Correct 685 ms 27604 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 600 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 2 ms 600 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 600 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 550 ms 40956 KB Output is correct
12 Correct 542 ms 41208 KB Output is correct
13 Correct 569 ms 40956 KB Output is correct
14 Correct 553 ms 40960 KB Output is correct
15 Correct 533 ms 41208 KB Output is correct
16 Correct 566 ms 40952 KB Output is correct
17 Correct 531 ms 40960 KB Output is correct
18 Correct 520 ms 41344 KB Output is correct
19 Correct 566 ms 40960 KB Output is correct
20 Correct 596 ms 41208 KB Output is correct
21 Correct 539 ms 40948 KB Output is correct
22 Correct 563 ms 40960 KB Output is correct
23 Correct 547 ms 40952 KB Output is correct
24 Correct 552 ms 40948 KB Output is correct
25 Correct 532 ms 40956 KB Output is correct
26 Correct 562 ms 40952 KB Output is correct
27 Correct 526 ms 40948 KB Output is correct
28 Correct 539 ms 41000 KB Output is correct
29 Correct 537 ms 41112 KB Output is correct
30 Correct 546 ms 40952 KB Output is correct
31 Correct 521 ms 40944 KB Output is correct
32 Correct 544 ms 40948 KB Output is correct
33 Correct 608 ms 40956 KB Output is correct
34 Correct 535 ms 40960 KB Output is correct
35 Correct 529 ms 40956 KB Output is correct
36 Correct 543 ms 40944 KB Output is correct
37 Correct 560 ms 40948 KB Output is correct
38 Correct 554 ms 40944 KB Output is correct
39 Correct 549 ms 41112 KB Output is correct
40 Correct 548 ms 40948 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 600 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 2 ms 600 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 600 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 492 ms 27864 KB Output is correct
12 Correct 567 ms 28052 KB Output is correct
13 Correct 579 ms 27048 KB Output is correct
14 Correct 597 ms 27560 KB Output is correct
15 Correct 620 ms 28024 KB Output is correct
16 Correct 643 ms 27396 KB Output is correct
17 Correct 594 ms 27448 KB Output is correct
18 Correct 374 ms 28888 KB Output is correct
19 Correct 429 ms 26148 KB Output is correct
20 Correct 555 ms 27596 KB Output is correct
21 Correct 556 ms 28084 KB Output is correct
22 Correct 600 ms 28212 KB Output is correct
23 Correct 632 ms 27908 KB Output is correct
24 Correct 651 ms 27104 KB Output is correct
25 Correct 665 ms 28968 KB Output is correct
26 Correct 656 ms 27708 KB Output is correct
27 Correct 688 ms 27704 KB Output is correct
28 Correct 356 ms 30132 KB Output is correct
29 Correct 441 ms 26208 KB Output is correct
30 Correct 584 ms 28124 KB Output is correct
31 Correct 639 ms 27956 KB Output is correct
32 Correct 668 ms 27960 KB Output is correct
33 Correct 527 ms 27272 KB Output is correct
34 Correct 678 ms 26984 KB Output is correct
35 Correct 684 ms 28128 KB Output is correct
36 Correct 297 ms 25972 KB Output is correct
37 Correct 561 ms 28392 KB Output is correct
38 Correct 472 ms 25912 KB Output is correct
39 Correct 631 ms 27312 KB Output is correct
40 Correct 685 ms 27604 KB Output is correct
41 Correct 550 ms 40956 KB Output is correct
42 Correct 542 ms 41208 KB Output is correct
43 Correct 569 ms 40956 KB Output is correct
44 Correct 553 ms 40960 KB Output is correct
45 Correct 533 ms 41208 KB Output is correct
46 Correct 566 ms 40952 KB Output is correct
47 Correct 531 ms 40960 KB Output is correct
48 Correct 520 ms 41344 KB Output is correct
49 Correct 566 ms 40960 KB Output is correct
50 Correct 596 ms 41208 KB Output is correct
51 Correct 539 ms 40948 KB Output is correct
52 Correct 563 ms 40960 KB Output is correct
53 Correct 547 ms 40952 KB Output is correct
54 Correct 552 ms 40948 KB Output is correct
55 Correct 532 ms 40956 KB Output is correct
56 Correct 562 ms 40952 KB Output is correct
57 Correct 526 ms 40948 KB Output is correct
58 Correct 539 ms 41000 KB Output is correct
59 Correct 537 ms 41112 KB Output is correct
60 Correct 546 ms 40952 KB Output is correct
61 Correct 521 ms 40944 KB Output is correct
62 Correct 544 ms 40948 KB Output is correct
63 Correct 608 ms 40956 KB Output is correct
64 Correct 535 ms 40960 KB Output is correct
65 Correct 529 ms 40956 KB Output is correct
66 Correct 543 ms 40944 KB Output is correct
67 Correct 560 ms 40948 KB Output is correct
68 Correct 554 ms 40944 KB Output is correct
69 Correct 549 ms 41112 KB Output is correct
70 Correct 548 ms 40948 KB Output is correct
71 Runtime error 1278 ms 65536 KB Execution killed with signal 9
72 Halted 0 ms 0 KB -