oj.uz

Submission #1037110

# Submission time Handle Problem Language Result Execution time Memory
1037110 2024-07-28T06:11:35 Z juicy Crossing (JOI21_crossing) C++17
26 / 100
 240 ms 19500 KB 
#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

const int N = 2e5 + 5;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int rand(int l, int r) {
    return uniform_int_distribution<int>(l, r)(rng);
}

bool prime(int N) {
  for (int i = 2; i * i <= N; ++i) {
    if (N % i == 0) {
      return 0;
    }
  }
  return 1;
}

int rand_mod() {
  int x = rand(1e9, 2e9);
  while (!prime(x)) {
    --x;
  }
  return x;
}

int rand_base() {
  int x = rand(13, 999999);
  while (!prime(x)) {
    --x;
  }
  return x;
}

int n, q;
array<int, 3> MD{rand_mod(), rand_mod(), rand_mod()}, base{rand_base(), rand_base(), rand_base()};
array<int, 3> pw[N], pf[N], sum[N], s[4 * N];
int lz[4 * N];
map<array<int, 3>, bool> mp;
string S;

int add(int x, int y, int c) {
  return ((long long) x + y) % MD[c];
}

int conv(char c) {
  return c == 'J' ? 1 : (c == 'O' ? 2 : 3);
}

void pull(int id, int l, int r) {
  int md = (l + r) / 2; 
  for (int i = 0; i < 3; ++i) {
    s[id][i] = add((long long) s[id * 2][i] * pw[r - md][i] % MD[i], s[id * 2 + 1][i], i);
  }
}

void bld(int id = 1, int l = 1, int r = n) {
  for (int i = 0; i < 3; ++i) {
    sum[id][i] = pf[r - l][i];
  }
  if (l == r) {
    int x = conv(S[l - 1]);
    s[id] = {x, x, x};
    return;
  }
  int md = (l + r) / 2;
  bld(id * 2, l, md);
  bld(id * 2 + 1, md + 1, r);
  pull(id, l, r);
}

void app(int id, int x) {
  for (int i = 0; i < 3; ++i) {
    s[id][i] = (long long) sum[id][i] * x % MD[i];
  }
  lz[id] = x;
}

void psh(int id) {
  if (lz[id]) {
    app(id * 2, lz[id]);
    app(id * 2 + 1, lz[id]);
    lz[id] = 0;
  }
}

void upd(int u, int v, int x, int id = 1, int l = 1, int r = n) {
  if (u <= l && r <= v) {
    app(id, x);
    return;
  }
  psh(id);
  int md = (l + r) / 2;
  if (u <= md) {
    upd(u, v, x, id * 2, l, md);
  } 
  if (md < v) {
    upd(u, v, x, id * 2 + 1, md + 1, r);
  }
  pull(id, l, r);
}

string cross(const string &a, const string &b) {
  string res;
  for (int i = 0; i < n; ++i) {
    if (a[i] == b[i]) {
      res += a[i];
    } else {
      for (auto c : {'J', 'O', 'I'}) {
        if (c != a[i] && c != b[i]) {
          res += c;
        }
      }
    }
  }
  return res;
}

array<int, 3> get(const string &s) {
  array<int, 3> h{}; 
  for (char c : s) {
    for (int i = 0; i < 3; ++i) {
      h[i] = add((long long) h[i] * base[i] % MD[i], conv(c), i); 
    }
  }
  return h;
}

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

  cin >> n;
  vector<string> st;
  for (int i = 0; i < 3; ++i) {
    string s; cin >> s;
    st.push_back(s);
    mp[get(s)] = 1;
  }  
  for (int i = 0; i < 3; ++i) {
    for (int j = i + 1; j < 3; ++j) {
      auto mix = cross(st[i], st[j]);
      auto h = get(mix);
      if (!mp.count(h)) {
        mp[h] = 1;
        st.push_back(mix);
      }
    }
  }
  bool flg = 1;
  while (flg) {
    flg = 0;
    for (int i = 0; i + 1 < st.size(); ++i) {
      auto mix = cross(st[i], st.back());
      auto h = get(mix);
      if (!mp.count(h)) {
        st.push_back(mix);
        mp[h] = 1;
        flg = 1;
        break;
      }
    }
  }
  for (auto it : {0, 1, 2}) {
    pw[0][it] = pf[0][it] = 1;
    for (int i = 1; i <= n; ++i) {
      pw[i][it] = (long long) pw[i - 1][it] * base[it] % MD[it];
      pf[i][it] = add(pf[i - 1][it], pw[i][it], it);
    }
  }
  cin >> q >> S;
  bld();
  auto qry = [&]() {
    cout << (mp.count(s[1]) ? "Yes" : "No") << "\n";
  };
  qry();
  while (q--) {
    int l, r; char c; cin >> l >> r >> c;
    upd(l, r, conv(c));
    qry();
  }
  return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:161:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  161 |     for (int i = 0; i + 1 < st.size(); ++i) {
      |                     ~~~~~~^~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 9012 KB Output is correct
2 Correct 68 ms 9084 KB Output is correct
3 Correct 76 ms 9236 KB Output is correct
4 Correct 59 ms 9044 KB Output is correct
5 Correct 59 ms 9040 KB Output is correct
6 Correct 60 ms 9104 KB Output is correct
7 Correct 57 ms 9040 KB Output is correct
8 Correct 60 ms 9032 KB Output is correct
9 Correct 60 ms 9144 KB Output is correct
10 Correct 60 ms 9040 KB Output is correct
11 Correct 62 ms 9192 KB Output is correct
12 Correct 60 ms 9052 KB Output is correct
13 Correct 61 ms 9044 KB Output is correct
14 Correct 63 ms 9072 KB Output is correct
15 Correct 61 ms 9252 KB Output is correct
16 Correct 61 ms 9148 KB Output is correct
17 Correct 61 ms 9360 KB Output is correct
18 Correct 69 ms 9044 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 9012 KB Output is correct
2 Correct 68 ms 9084 KB Output is correct
3 Correct 76 ms 9236 KB Output is correct
4 Correct 59 ms 9044 KB Output is correct
5 Correct 59 ms 9040 KB Output is correct
6 Correct 60 ms 9104 KB Output is correct
7 Correct 57 ms 9040 KB Output is correct
8 Correct 60 ms 9032 KB Output is correct
9 Correct 60 ms 9144 KB Output is correct
10 Correct 60 ms 9040 KB Output is correct
11 Correct 62 ms 9192 KB Output is correct
12 Correct 60 ms 9052 KB Output is correct
13 Correct 61 ms 9044 KB Output is correct
14 Correct 63 ms 9072 KB Output is correct
15 Correct 61 ms 9252 KB Output is correct
16 Correct 61 ms 9148 KB Output is correct
17 Correct 61 ms 9360 KB Output is correct
18 Correct 69 ms 9044 KB Output is correct
19 Correct 240 ms 19500 KB Output is correct
20 Correct 235 ms 17748 KB Output is correct
21 Incorrect 155 ms 19180 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 9012 KB Output is correct
2 Correct 68 ms 9084 KB Output is correct
3 Correct 76 ms 9236 KB Output is correct
4 Correct 59 ms 9044 KB Output is correct
5 Correct 59 ms 9040 KB Output is correct
6 Correct 60 ms 9104 KB Output is correct
7 Correct 57 ms 9040 KB Output is correct
8 Correct 60 ms 9032 KB Output is correct
9 Correct 60 ms 9144 KB Output is correct
10 Correct 60 ms 9040 KB Output is correct
11 Correct 62 ms 9192 KB Output is correct
12 Correct 60 ms 9052 KB Output is correct
13 Correct 61 ms 9044 KB Output is correct
14 Correct 63 ms 9072 KB Output is correct
15 Correct 61 ms 9252 KB Output is correct
16 Correct 61 ms 9148 KB Output is correct
17 Correct 61 ms 9360 KB Output is correct
18 Correct 69 ms 9044 KB Output is correct
19 Correct 69 ms 8984 KB Output is correct
20 Correct 78 ms 9044 KB Output is correct
21 Correct 65 ms 9036 KB Output is correct
22 Correct 53 ms 9044 KB Output is correct
23 Correct 63 ms 9048 KB Output is correct
24 Correct 60 ms 9040 KB Output is correct
25 Correct 63 ms 9044 KB Output is correct
26 Correct 56 ms 9044 KB Output is correct
27 Correct 61 ms 9032 KB Output is correct
28 Correct 59 ms 9096 KB Output is correct
29 Correct 67 ms 9088 KB Output is correct
30 Correct 54 ms 8968 KB Output is correct
31 Correct 68 ms 9204 KB Output is correct
32 Correct 68 ms 9104 KB Output is correct
33 Correct 64 ms 9044 KB Output is correct
34 Correct 58 ms 9196 KB Output is correct
35 Correct 64 ms 9040 KB Output is correct
36 Correct 65 ms 9040 KB Output is correct
37 Correct 63 ms 9040 KB Output is correct
38 Correct 72 ms 9256 KB Output is correct
39 Correct 62 ms 9052 KB Output is correct
40 Correct 64 ms 9044 KB Output is correct
41 Correct 69 ms 9088 KB Output is correct
42 Correct 64 ms 9192 KB Output is correct
43 Correct 60 ms 9112 KB Output is correct
44 Correct 64 ms 9252 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 9012 KB Output is correct
2 Correct 68 ms 9084 KB Output is correct
3 Correct 76 ms 9236 KB Output is correct
4 Correct 59 ms 9044 KB Output is correct
5 Correct 59 ms 9040 KB Output is correct
6 Correct 60 ms 9104 KB Output is correct
7 Correct 57 ms 9040 KB Output is correct
8 Correct 60 ms 9032 KB Output is correct
9 Correct 60 ms 9144 KB Output is correct
10 Correct 60 ms 9040 KB Output is correct
11 Correct 62 ms 9192 KB Output is correct
12 Correct 60 ms 9052 KB Output is correct
13 Correct 61 ms 9044 KB Output is correct
14 Correct 63 ms 9072 KB Output is correct
15 Correct 61 ms 9252 KB Output is correct
16 Correct 61 ms 9148 KB Output is correct
17 Correct 61 ms 9360 KB Output is correct
18 Correct 69 ms 9044 KB Output is correct
19 Correct 240 ms 19500 KB Output is correct
20 Correct 235 ms 17748 KB Output is correct
21 Incorrect 155 ms 19180 KB Output isn't correct
22 Halted 0 ms 0 KB -