oj.uz

Submission #881569

# Submission time Handle Problem Language Result Execution time Memory
881569 2023-12-01T13:41:06 Z nima_aryan Crossing (JOI21_crossing) C++17
100 / 100
 2013 ms 122900 KB 
/**
 *    author:  NimaAryan
 *    created: 2023-12-01 12:26:57  
**/
#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "algo/debug.h"
#endif

using i64 = long long;

constexpr i64 M = 1E9 + 7;
constexpr i64 B = 28463;

vector<i64> powB{1};
vector<vector<i64>> hashC(26);

void init() {
  while (powB.size() < 3E5) {
    powB.push_back(powB.back() * B % M);
  }
  for (int i = 0; i < 26; ++i) {
    hashC[i].push_back(0);
    while (hashC[i].size() < 3E5) {
      hashC[i].push_back((hashC[i].back() * B + ('A' + i)) % M);
    }
  }
}

struct Tag {
  char ch = '?';

  void apply(const Tag& v) {
    if (v.ch != '?') {
      ch = v.ch;
    }
  }
};
struct Info {
  int len = 0;
  i64 hash = 0;

  void apply(int l, int r, const Tag& v) {
    if (v.ch != '?') {
      len = r - l;
      hash = hashC[v.ch - 'A'][len];
    }
  }
};
Info operator+(Info a, Info b) {
  Info res;
  res.len = a.len + b.len;
  res.hash = (a.hash * powB[b.len] % M + b.hash) % M;
  return res;
}

class SegmentTree {
 public:
  int n;
  vector<Info> info;
  vector<Tag> tag;

  SegmentTree(int n) : n(n) {
    info.assign(4 << __lg(n), Info());
    tag.assign(4 << __lg(n), Tag());
  }

  void pull(int p) {
    info[p] = info[2 * p] + info[2 * p + 1];
  }
  void apply(int p, int l, int r, const Tag& v) {
    info[p].apply(l, r, v);
    tag[p].apply(v);
  }
  void push(int p, int l, int r) {
    int m = (l + r) / 2;
    apply(2 * p, l, m, tag[p]);
    apply(2 * p + 1, m, r, tag[p]);
    tag[p] = Tag();
  }

  void range_apply(int p, int l, int r, int lx, int rx, const Tag& v) {
    if (l >= rx || r <= lx) {
      return;
    }
    if (l >= lx && r <= rx) {
      apply(p, l, r, v);
      return;
    }
    push(p, l, r);
    int m = (l + r) / 2;
    range_apply(2 * p, l, m, lx, rx, v);
    range_apply(2 * p + 1, m, r, lx, rx, v);
    pull(p);
  }
  void range_apply(int lx, int rx, const Tag& v) {
    range_apply(1, 0, n, lx, rx, v);
  }
};

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  
  init();

  int N;
  cin >> N;

  vector<string> S(3);
  for (int i = 0; i < 3; ++i) {
    cin >> S[i];
  }

  set<string> a;
  for (int i = 0; i < 3; ++i) {
    a.insert(S[i]);
  }
  while (true) {
    auto new_a = a;
    for (string s : a) {
      for (string t : a) {
        if (s != t) {
          string u;
          for (int i = 0; i < N; ++i) {
            if (s[i] == t[i]) {
              u.push_back(s[i]);
            } else {
              set<char> rb{'J', 'O', 'I'};
              rb.erase(s[i]);
              rb.erase(t[i]);
              u.push_back(*rb.begin());
            }
          }
          if (!new_a.count(u)) {
            new_a.insert(u);
          }
        }
      }
    }
    if (a == new_a) {
      break;
    }
    a.swap(new_a);
  }

  set<i64> search;
  for (string s : a) {
    i64 hash = 0;
    for (int i = 0; i < N; ++i) {
      hash = (hash * B + s[i]) % M;
    }
    search.insert(hash);
  }

  int Q;
  cin >> Q;

  string T;
  cin >> T;

  SegmentTree seg(N);
  for (int i = 0; i < N; ++i) {
    seg.range_apply(i, i + 1, Tag{T[i]});
  }

  i64 hash = seg.info[1].hash;
  if (search.count(hash)) {
    cout << "Yes" << "\n";
  } else {
    cout << "No" << "\n";
  }

  while (Q--) {
    int L, R;
    cin >> L >> R;
    --L;
    char C;
    cin >> C;
    seg.range_apply(L, R, Tag{C});
    i64 hash = seg.info[1].hash;
    if (search.count(hash)) {
      cout << "Yes" << "\n";
    } else {
      cout << "No" << "\n";
    }
  }

  return 0;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 81960 KB Output is correct
2 Correct 157 ms 67884 KB Output is correct
3 Correct 159 ms 82424 KB Output is correct
4 Correct 162 ms 102168 KB Output is correct
5 Correct 169 ms 113644 KB Output is correct
6 Correct 141 ms 77456 KB Output is correct
7 Correct 161 ms 87844 KB Output is correct
8 Correct 171 ms 109452 KB Output is correct
9 Correct 166 ms 113340 KB Output is correct
10 Correct 152 ms 68376 KB Output is correct
11 Correct 149 ms 92140 KB Output is correct
12 Correct 162 ms 113464 KB Output is correct
13 Correct 153 ms 113604 KB Output is correct
14 Correct 157 ms 80372 KB Output is correct
15 Correct 151 ms 80412 KB Output is correct
16 Correct 155 ms 71656 KB Output is correct
17 Correct 156 ms 81664 KB Output is correct
18 Correct 157 ms 85040 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 81960 KB Output is correct
2 Correct 157 ms 67884 KB Output is correct
3 Correct 159 ms 82424 KB Output is correct
4 Correct 162 ms 102168 KB Output is correct
5 Correct 169 ms 113644 KB Output is correct
6 Correct 141 ms 77456 KB Output is correct
7 Correct 161 ms 87844 KB Output is correct
8 Correct 171 ms 109452 KB Output is correct
9 Correct 166 ms 113340 KB Output is correct
10 Correct 152 ms 68376 KB Output is correct
11 Correct 149 ms 92140 KB Output is correct
12 Correct 162 ms 113464 KB Output is correct
13 Correct 153 ms 113604 KB Output is correct
14 Correct 157 ms 80372 KB Output is correct
15 Correct 151 ms 80412 KB Output is correct
16 Correct 155 ms 71656 KB Output is correct
17 Correct 156 ms 81664 KB Output is correct
18 Correct 157 ms 85040 KB Output is correct
19 Correct 325 ms 103792 KB Output is correct
20 Correct 316 ms 85632 KB Output is correct
21 Correct 309 ms 122900 KB Output is correct
22 Correct 255 ms 104304 KB Output is correct
23 Correct 203 ms 113432 KB Output is correct
24 Correct 183 ms 67808 KB Output is correct
25 Correct 258 ms 102188 KB Output is correct
26 Correct 291 ms 114816 KB Output is correct
27 Correct 289 ms 114776 KB Output is correct
28 Correct 324 ms 98644 KB Output is correct
29 Correct 277 ms 78436 KB Output is correct
30 Correct 190 ms 68348 KB Output is correct
31 Correct 288 ms 122228 KB Output is correct
32 Correct 272 ms 109396 KB Output is correct
33 Correct 198 ms 98832 KB Output is correct
34 Correct 284 ms 117008 KB Output is correct
35 Correct 245 ms 120820 KB Output is correct
36 Correct 190 ms 92692 KB Output is correct
37 Correct 206 ms 71180 KB Output is correct
38 Correct 297 ms 78024 KB Output is correct
39 Correct 248 ms 87960 KB Output is correct
40 Correct 243 ms 86264 KB Output is correct
41 Correct 330 ms 120664 KB Output is correct
42 Correct 184 ms 82788 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 81960 KB Output is correct
2 Correct 157 ms 67884 KB Output is correct
3 Correct 159 ms 82424 KB Output is correct
4 Correct 162 ms 102168 KB Output is correct
5 Correct 169 ms 113644 KB Output is correct
6 Correct 141 ms 77456 KB Output is correct
7 Correct 161 ms 87844 KB Output is correct
8 Correct 171 ms 109452 KB Output is correct
9 Correct 166 ms 113340 KB Output is correct
10 Correct 152 ms 68376 KB Output is correct
11 Correct 149 ms 92140 KB Output is correct
12 Correct 162 ms 113464 KB Output is correct
13 Correct 153 ms 113604 KB Output is correct
14 Correct 157 ms 80372 KB Output is correct
15 Correct 151 ms 80412 KB Output is correct
16 Correct 155 ms 71656 KB Output is correct
17 Correct 156 ms 81664 KB Output is correct
18 Correct 157 ms 85040 KB Output is correct
19 Correct 155 ms 71780 KB Output is correct
20 Correct 168 ms 100988 KB Output is correct
21 Correct 159 ms 102412 KB Output is correct
22 Correct 157 ms 95992 KB Output is correct
23 Correct 167 ms 109604 KB Output is correct
24 Correct 155 ms 85908 KB Output is correct
25 Correct 158 ms 77920 KB Output is correct
26 Correct 159 ms 111380 KB Output is correct
27 Correct 161 ms 90108 KB Output is correct
28 Correct 156 ms 83708 KB Output is correct
29 Correct 160 ms 97284 KB Output is correct
30 Correct 144 ms 67992 KB Output is correct
31 Correct 155 ms 69024 KB Output is correct
32 Correct 166 ms 88848 KB Output is correct
33 Correct 157 ms 71424 KB Output is correct
34 Correct 154 ms 91920 KB Output is correct
35 Correct 161 ms 67728 KB Output is correct
36 Correct 154 ms 72960 KB Output is correct
37 Correct 174 ms 102108 KB Output is correct
38 Correct 150 ms 83400 KB Output is correct
39 Correct 159 ms 85744 KB Output is correct
40 Correct 157 ms 81168 KB Output is correct
41 Correct 166 ms 99924 KB Output is correct
42 Correct 175 ms 112648 KB Output is correct
43 Correct 158 ms 93996 KB Output is correct
44 Correct 159 ms 87836 KB Output is correct

Subtask #4
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 81960 KB Output is correct
2 Correct 157 ms 67884 KB Output is correct
3 Correct 159 ms 82424 KB Output is correct
4 Correct 162 ms 102168 KB Output is correct
5 Correct 169 ms 113644 KB Output is correct
6 Correct 141 ms 77456 KB Output is correct
7 Correct 161 ms 87844 KB Output is correct
8 Correct 171 ms 109452 KB Output is correct
9 Correct 166 ms 113340 KB Output is correct
10 Correct 152 ms 68376 KB Output is correct
11 Correct 149 ms 92140 KB Output is correct
12 Correct 162 ms 113464 KB Output is correct
13 Correct 153 ms 113604 KB Output is correct
14 Correct 157 ms 80372 KB Output is correct
15 Correct 151 ms 80412 KB Output is correct
16 Correct 155 ms 71656 KB Output is correct
17 Correct 156 ms 81664 KB Output is correct
18 Correct 157 ms 85040 KB Output is correct
19 Correct 325 ms 103792 KB Output is correct
20 Correct 316 ms 85632 KB Output is correct
21 Correct 309 ms 122900 KB Output is correct
22 Correct 255 ms 104304 KB Output is correct
23 Correct 203 ms 113432 KB Output is correct
24 Correct 183 ms 67808 KB Output is correct
25 Correct 258 ms 102188 KB Output is correct
26 Correct 291 ms 114816 KB Output is correct
27 Correct 289 ms 114776 KB Output is correct
28 Correct 324 ms 98644 KB Output is correct
29 Correct 277 ms 78436 KB Output is correct
30 Correct 190 ms 68348 KB Output is correct
31 Correct 288 ms 122228 KB Output is correct
32 Correct 272 ms 109396 KB Output is correct
33 Correct 198 ms 98832 KB Output is correct
34 Correct 284 ms 117008 KB Output is correct
35 Correct 245 ms 120820 KB Output is correct
36 Correct 190 ms 92692 KB Output is correct
37 Correct 206 ms 71180 KB Output is correct
38 Correct 297 ms 78024 KB Output is correct
39 Correct 248 ms 87960 KB Output is correct
40 Correct 243 ms 86264 KB Output is correct
41 Correct 330 ms 120664 KB Output is correct
42 Correct 184 ms 82788 KB Output is correct
43 Correct 155 ms 71780 KB Output is correct
44 Correct 168 ms 100988 KB Output is correct
45 Correct 159 ms 102412 KB Output is correct
46 Correct 157 ms 95992 KB Output is correct
47 Correct 167 ms 109604 KB Output is correct
48 Correct 155 ms 85908 KB Output is correct
49 Correct 158 ms 77920 KB Output is correct
50 Correct 159 ms 111380 KB Output is correct
51 Correct 161 ms 90108 KB Output is correct
52 Correct 156 ms 83708 KB Output is correct
53 Correct 160 ms 97284 KB Output is correct
54 Correct 144 ms 67992 KB Output is correct
55 Correct 155 ms 69024 KB Output is correct
56 Correct 166 ms 88848 KB Output is correct
57 Correct 157 ms 71424 KB Output is correct
58 Correct 154 ms 91920 KB Output is correct
59 Correct 161 ms 67728 KB Output is correct
60 Correct 154 ms 72960 KB Output is correct
61 Correct 174 ms 102108 KB Output is correct
62 Correct 150 ms 83400 KB Output is correct
63 Correct 159 ms 85744 KB Output is correct
64 Correct 157 ms 81168 KB Output is correct
65 Correct 166 ms 99924 KB Output is correct
66 Correct 175 ms 112648 KB Output is correct
67 Correct 158 ms 93996 KB Output is correct
68 Correct 159 ms 87836 KB Output is correct
69 Correct 1773 ms 122856 KB Output is correct
70 Correct 2009 ms 81320 KB Output is correct
71 Correct 226 ms 112176 KB Output is correct
72 Correct 200 ms 96696 KB Output is correct
73 Correct 205 ms 103500 KB Output is correct
74 Correct 336 ms 118068 KB Output is correct
75 Correct 207 ms 82944 KB Output is correct
76 Correct 366 ms 80704 KB Output is correct
77 Correct 332 ms 78444 KB Output is correct
78 Correct 215 ms 76828 KB Output is correct
79 Correct 196 ms 83204 KB Output is correct
80 Correct 1472 ms 80216 KB Output is correct
81 Correct 281 ms 79320 KB Output is correct
82 Correct 2004 ms 108016 KB Output is correct
83 Correct 1851 ms 85968 KB Output is correct
84 Correct 285 ms 100100 KB Output is correct
85 Correct 280 ms 86804 KB Output is correct
86 Correct 1406 ms 100212 KB Output is correct
87 Correct 1756 ms 81284 KB Output is correct
88 Correct 285 ms 97024 KB Output is correct
89 Correct 1611 ms 112996 KB Output is correct
90 Correct 1877 ms 103256 KB Output is correct
91 Correct 278 ms 82220 KB Output is correct
92 Correct 1516 ms 118932 KB Output is correct
93 Correct 289 ms 112872 KB Output is correct
94 Correct 286 ms 108260 KB Output is correct
95 Correct 299 ms 109600 KB Output is correct
96 Correct 304 ms 120896 KB Output is correct
97 Correct 316 ms 106684 KB Output is correct
98 Correct 1345 ms 79492 KB Output is correct
99 Correct 2013 ms 88660 KB Output is correct
100 Correct 1894 ms 82000 KB Output is correct