oj.uz

Submission #831232

# Submission time Handle Problem Language Result Execution time Memory
831232 2023-08-20T01:16:57 Z perchuts Crossing (JOI21_crossing) C++17
26 / 100
 449 ms 32312 KB 
#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define sz(x) (int) x.size()
#define endl '\n'
#define pb push_back
#define _ ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define int ll

using namespace std;

using ll = long long;
using ull = unsigned long long;
using ii = pair<int,int>;
using iii = tuple<int,int,int>;

const int inf = 2e9+1;
const int mod = 1e9+7;
const int maxn = 3e5+100;

template<typename X, typename Y> bool ckmin(X& x, const Y& y) { return (y < x) ? (x=y,1):0; }
template<typename X, typename Y> bool ckmax(X& x, const Y& y) { return (x < y) ? (x=y,1):0; }

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

int rnd(int l, int r) {
      uniform_int_distribution<ll> uid(l, r);
      return uid(rng);
}

int pr[maxn][3], seg[4*maxn], lz[4*maxn];

void push(int i, int l, int r) {
      if (lz[i] == 3) return;
      seg[i] = pr[r][lz[i]] ^ pr[l-1][lz[i]];
      if (l != r) lz[2*i] = lz[2*i+1] = lz[i];
      lz[i] = 3;
}

void upd(int i, int l, int r, int x, int y, int k) {
      push(i, l, r);
      if (r < x || y < l) return;
      if (x <= l && r <= y) {
            lz[i] = k;
            push(i, l, r);
            return;
      }
      int md = (l + r) / 2;
      upd(2*i, l, md, x, y, k), upd(2*i+1, md+1, r, x, y, k);
      seg[i] = seg[2*i] ^ seg[2*i+1];
}

int32_t main(){_
      int n; cin >> n; string a, b, c; cin >> a >> b >> c;
      // there are only 27 strings that can be generated (trust)
      map<char, int> f;

      f['J'] = 2, f['O'] = 0, f['I'] = 1;

      for (int i = 0; i < 3; ++i) {
            for (int j = 1; j <= n; ++j) {
                  pr[j][i] = pr[j-1][i] ^ rnd(0, 8e18);
            }
      }

      map<int, bool> existe;

      for (int i = 0; i < 3; ++i) {
            for (int j = 0; j < 3; ++j) {
                  for (int k = 0; k < 3; ++k) {
                        int x = 0;
                        if (i + j + k == 0) continue;
                        if (max({i, j, k}) == 2 && i + j + k == 3) continue;
                        for (int w = 1; w <= n; ++w) {
                              int ac = f[a[w-1]], bc = f[b[w-1]], cc = f[c[w-1]];
                              int res = (ac * i + bc * j + cc * k) % 3;
                              if (ac == bc && bc == cc) res = ac;
                              x ^= pr[w][res] ^ pr[w-1][res];
                        }
                        existe[x] = 1;
                  }
            }
      }

      for (int i = 1; i < 4*maxn; ++i) lz[i] = 3;

      int q; cin >> q;
      string t; cin >> t;

      for (int i = 1; i <= n; ++i) upd(1, 1, n, i, i, f[t[i-1]]);

      cout << (existe[seg[1]] == 1 ? "Yes" : "No") << endl;

      while (q--) {
            int l, r; char c; cin >> l >> r >> c;
            upd(1, 1, n, l, r, f[c]);
            cout << (existe[seg[1]] == 1 ? "Yes" : "No") << endl;
      }
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 107 ms 19556 KB Output is correct
2 Correct 136 ms 20448 KB Output is correct
3 Correct 98 ms 13900 KB Output is correct
4 Correct 119 ms 20380 KB Output is correct
5 Correct 126 ms 20592 KB Output is correct
6 Correct 111 ms 19760 KB Output is correct
7 Correct 112 ms 19964 KB Output is correct
8 Correct 121 ms 20776 KB Output is correct
9 Correct 127 ms 20324 KB Output is correct
10 Correct 142 ms 21836 KB Output is correct
11 Correct 123 ms 21116 KB Output is correct
12 Correct 127 ms 21808 KB Output is correct
13 Correct 163 ms 21140 KB Output is correct
14 Correct 123 ms 21836 KB Output is correct
15 Correct 118 ms 21064 KB Output is correct
16 Correct 135 ms 21944 KB Output is correct
17 Correct 127 ms 21140 KB Output is correct
18 Correct 78 ms 12296 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 107 ms 19556 KB Output is correct
2 Correct 136 ms 20448 KB Output is correct
3 Correct 98 ms 13900 KB Output is correct
4 Correct 119 ms 20380 KB Output is correct
5 Correct 126 ms 20592 KB Output is correct
6 Correct 111 ms 19760 KB Output is correct
7 Correct 112 ms 19964 KB Output is correct
8 Correct 121 ms 20776 KB Output is correct
9 Correct 127 ms 20324 KB Output is correct
10 Correct 142 ms 21836 KB Output is correct
11 Correct 123 ms 21116 KB Output is correct
12 Correct 127 ms 21808 KB Output is correct
13 Correct 163 ms 21140 KB Output is correct
14 Correct 123 ms 21836 KB Output is correct
15 Correct 118 ms 21064 KB Output is correct
16 Correct 135 ms 21944 KB Output is correct
17 Correct 127 ms 21140 KB Output is correct
18 Correct 78 ms 12296 KB Output is correct
19 Correct 449 ms 29608 KB Output is correct
20 Correct 357 ms 30368 KB Output is correct
21 Correct 337 ms 30976 KB Output is correct
22 Correct 325 ms 28280 KB Output is correct
23 Correct 167 ms 23292 KB Output is correct
24 Correct 173 ms 22092 KB Output is correct
25 Correct 347 ms 31936 KB Output is correct
26 Correct 340 ms 29980 KB Output is correct
27 Correct 347 ms 32312 KB Output is correct
28 Correct 350 ms 29924 KB Output is correct
29 Correct 330 ms 31904 KB Output is correct
30 Correct 195 ms 23280 KB Output is correct
31 Correct 382 ms 32300 KB Output is correct
32 Correct 319 ms 29336 KB Output is correct
33 Correct 160 ms 21920 KB Output is correct
34 Correct 344 ms 30012 KB Output is correct
35 Correct 278 ms 28796 KB Output is correct
36 Correct 205 ms 22104 KB Output is correct
37 Correct 170 ms 22092 KB Output is correct
38 Correct 276 ms 27640 KB Output is correct
39 Correct 247 ms 26292 KB Output is correct
40 Correct 272 ms 26412 KB Output is correct
41 Correct 306 ms 20140 KB Output is correct
42 Correct 128 ms 20124 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 107 ms 19556 KB Output is correct
2 Correct 136 ms 20448 KB Output is correct
3 Correct 98 ms 13900 KB Output is correct
4 Correct 119 ms 20380 KB Output is correct
5 Correct 126 ms 20592 KB Output is correct
6 Correct 111 ms 19760 KB Output is correct
7 Correct 112 ms 19964 KB Output is correct
8 Correct 121 ms 20776 KB Output is correct
9 Correct 127 ms 20324 KB Output is correct
10 Correct 142 ms 21836 KB Output is correct
11 Correct 123 ms 21116 KB Output is correct
12 Correct 127 ms 21808 KB Output is correct
13 Correct 163 ms 21140 KB Output is correct
14 Correct 123 ms 21836 KB Output is correct
15 Correct 118 ms 21064 KB Output is correct
16 Correct 135 ms 21944 KB Output is correct
17 Correct 127 ms 21140 KB Output is correct
18 Correct 78 ms 12296 KB Output is correct
19 Correct 114 ms 19964 KB Output is correct
20 Correct 119 ms 13980 KB Output is correct
21 Correct 121 ms 21204 KB Output is correct
22 Correct 102 ms 19276 KB Output is correct
23 Correct 127 ms 21304 KB Output is correct
24 Correct 125 ms 20176 KB Output is correct
25 Correct 146 ms 21156 KB Output is correct
26 Correct 111 ms 19916 KB Output is correct
27 Correct 120 ms 21280 KB Output is correct
28 Correct 118 ms 20204 KB Output is correct
29 Correct 126 ms 20644 KB Output is correct
30 Correct 110 ms 19584 KB Output is correct
31 Correct 124 ms 21504 KB Output is correct
32 Correct 122 ms 21376 KB Output is correct
33 Correct 123 ms 20796 KB Output is correct
34 Correct 111 ms 19940 KB Output is correct
35 Correct 142 ms 21864 KB Output is correct
36 Correct 123 ms 21084 KB Output is correct
37 Correct 123 ms 21920 KB Output is correct
38 Correct 139 ms 21132 KB Output is correct
39 Correct 129 ms 21876 KB Output is correct
40 Correct 119 ms 21048 KB Output is correct
41 Correct 125 ms 21872 KB Output is correct
42 Correct 134 ms 21140 KB Output is correct
43 Incorrect 128 ms 20396 KB Output isn't correct
44 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 107 ms 19556 KB Output is correct
2 Correct 136 ms 20448 KB Output is correct
3 Correct 98 ms 13900 KB Output is correct
4 Correct 119 ms 20380 KB Output is correct
5 Correct 126 ms 20592 KB Output is correct
6 Correct 111 ms 19760 KB Output is correct
7 Correct 112 ms 19964 KB Output is correct
8 Correct 121 ms 20776 KB Output is correct
9 Correct 127 ms 20324 KB Output is correct
10 Correct 142 ms 21836 KB Output is correct
11 Correct 123 ms 21116 KB Output is correct
12 Correct 127 ms 21808 KB Output is correct
13 Correct 163 ms 21140 KB Output is correct
14 Correct 123 ms 21836 KB Output is correct
15 Correct 118 ms 21064 KB Output is correct
16 Correct 135 ms 21944 KB Output is correct
17 Correct 127 ms 21140 KB Output is correct
18 Correct 78 ms 12296 KB Output is correct
19 Correct 449 ms 29608 KB Output is correct
20 Correct 357 ms 30368 KB Output is correct
21 Correct 337 ms 30976 KB Output is correct
22 Correct 325 ms 28280 KB Output is correct
23 Correct 167 ms 23292 KB Output is correct
24 Correct 173 ms 22092 KB Output is correct
25 Correct 347 ms 31936 KB Output is correct
26 Correct 340 ms 29980 KB Output is correct
27 Correct 347 ms 32312 KB Output is correct
28 Correct 350 ms 29924 KB Output is correct
29 Correct 330 ms 31904 KB Output is correct
30 Correct 195 ms 23280 KB Output is correct
31 Correct 382 ms 32300 KB Output is correct
32 Correct 319 ms 29336 KB Output is correct
33 Correct 160 ms 21920 KB Output is correct
34 Correct 344 ms 30012 KB Output is correct
35 Correct 278 ms 28796 KB Output is correct
36 Correct 205 ms 22104 KB Output is correct
37 Correct 170 ms 22092 KB Output is correct
38 Correct 276 ms 27640 KB Output is correct
39 Correct 247 ms 26292 KB Output is correct
40 Correct 272 ms 26412 KB Output is correct
41 Correct 306 ms 20140 KB Output is correct
42 Correct 128 ms 20124 KB Output is correct
43 Correct 114 ms 19964 KB Output is correct
44 Correct 119 ms 13980 KB Output is correct
45 Correct 121 ms 21204 KB Output is correct
46 Correct 102 ms 19276 KB Output is correct
47 Correct 127 ms 21304 KB Output is correct
48 Correct 125 ms 20176 KB Output is correct
49 Correct 146 ms 21156 KB Output is correct
50 Correct 111 ms 19916 KB Output is correct
51 Correct 120 ms 21280 KB Output is correct
52 Correct 118 ms 20204 KB Output is correct
53 Correct 126 ms 20644 KB Output is correct
54 Correct 110 ms 19584 KB Output is correct
55 Correct 124 ms 21504 KB Output is correct
56 Correct 122 ms 21376 KB Output is correct
57 Correct 123 ms 20796 KB Output is correct
58 Correct 111 ms 19940 KB Output is correct
59 Correct 142 ms 21864 KB Output is correct
60 Correct 123 ms 21084 KB Output is correct
61 Correct 123 ms 21920 KB Output is correct
62 Correct 139 ms 21132 KB Output is correct
63 Correct 129 ms 21876 KB Output is correct
64 Correct 119 ms 21048 KB Output is correct
65 Correct 125 ms 21872 KB Output is correct
66 Correct 134 ms 21140 KB Output is correct
67 Incorrect 128 ms 20396 KB Output isn't correct
68 Halted 0 ms 0 KB -