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답안 #549757

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
549757 2022-04-16T13:21:40 Z MilosMilutinovic Crossing (JOI21_crossing) C++14
100 / 100
 305 ms 14344 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 200005;
const int MD = 1e9 + 7;
const int BASE = 77777;

int mul(int x, int y) {
  return (long long) x * y % MD;
}

int add(int x, int y) {
  return x + y >= MD ? x + y - MD : x + y;
}

int sub(int x, int y) {
  return x - y < 0 ? x - y + MD : x - y;
}

int st[4 * N], lzy[4 * N], pw[N], pref[N];
bool act[4 * N];

void build(int node, int l, int r, string& s) {
  if (l == r) {
    st[node] = mul((s[l] - '0'), pw[l]);
    return;
  }
  int mid = l + r >> 1;
  build(node + node, l, mid, s);
  build(node + node + 1, mid + 1, r, s);
  st[node] = add(st[node + node], st[node + node + 1]);
}

void push(int node, int l, int r) {
  if (!act[node]) {
    return;
  }
  if (l != r) {
    int mid = l + r >> 1;
    st[node + node] = mul(lzy[node], sub(pref[mid], (l == 0 ? 0 : pref[l - 1])));
    st[node + node + 1] = mul(lzy[node], sub(pref[r], pref[mid]));
    lzy[node + node] = lzy[node];
    lzy[node + node + 1] = lzy[node];
    act[node + node] = true;
    act[node + node + 1] = true;
  }
  act[node] = false;
}

void modify(int node, int l, int r, int ll, int rr, char cc) {
  if (l > r || l > rr || r < ll) return;
  if (ll <= l && r <= rr) {
    st[node] = mul(cc - '0', sub(pref[r], (l == 0 ? 0 : pref[l - 1])));
    lzy[node] = cc - '0';
    act[node] = true;
    return;
  }
  push(node, l, r);
  int mid = l + r >> 1;
  modify(node + node, l, mid, ll, rr, cc);
  modify(node + node + 1, mid + 1, r, ll, rr, cc);
  st[node] = add(st[node + node], st[node + node + 1]);
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  pw[0] = 1;
  pref[0] = 1;
  for (int i = 1; i < N; i++) {
    pw[i] = mul(pw[i - 1], BASE);
    pref[i] = add(pref[i - 1], pw[i]);
  }
  int n;
  cin >> n;
  string sa, sb, sc;
  cin >> sa >> sb >> sc;
  for (int i = 0; i < n; i++) {
    sa[i] = (sa[i] == 'J' ? '0' : (sa[i] == 'O' ? '1' : '2'));
    sb[i] = (sb[i] == 'J' ? '0' : (sb[i] == 'O' ? '1' : '2'));
    sc[i] = (sc[i] == 'J' ? '0' : (sc[i] == 'O' ? '1' : '2'));
  }
  auto Cross = [&](string s, string t) {
    string res = "";
    for (int i = 0; i < n; i++) {
      if (s[i] == t[i]) {
        res += s[i];
      } else {
        res += (s[i] ^ t[i] ^ '0' ^ '1' ^ '2');
      }
    }
    return res;
  };
  vector<string> a;
  a.push_back(sa);
  a.push_back(sb);
  a.push_back(sc);
  a.push_back(Cross(sa, sb));
  a.push_back(Cross(sa, sc));
  a.push_back(Cross(sb, sc));
  a.push_back(Cross(sa, Cross(sb, sc)));
  a.push_back(Cross(sb, Cross(sa, sc)));
  a.push_back(Cross(sc, Cross(sb, sa)));
  set<int> hsh;
  auto GetHash = [&](string s) {
    int res = 0;
    for (int i = 0; i < n; i++) {
      res = add(res, mul(s[i] - '0', pw[i]));
    }
    return res;
  };
  for (auto &str : a) {
    hsh.insert(GetHash(str));
  }
  int q;
  cin >> q;
  string t;
  cin >> t;
  for (int i = 0; i < n; i++) {
    t[i] = (t[i] == 'J' ? '0' : (t[i] == 'O' ? '1' : '2'));
  }
  build(1, 0, n - 1, t);
  function<void()> Answer = [&]() {
    int my = st[1];
    bool ok = false;
    for (auto he : hsh) {
      ok |= (he == my);
    }
    cout << (ok ? "Yes" : "No") << '\n';
  };
  Answer();
  while (q--) {
    int l, r;
    char foo;
    cin >> l >> r >> foo;
    --l; --r;
    foo = (foo == 'J' ? '0' : (foo == 'O' ? '1' : '2'));
    modify(1, 0, n - 1, l, r, foo);
    Answer();
  }
  return 0;
}

Compilation message

Main.cpp: In function 'void build(int, int, int, std::string&)':
Main.cpp:29:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   29 |   int mid = l + r >> 1;
      |             ~~^~~
Main.cpp: In function 'void push(int, int, int)':
Main.cpp:40:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   40 |     int mid = l + r >> 1;
      |               ~~^~~
Main.cpp: In function 'void modify(int, int, int, int, int, char)':
Main.cpp:60:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   60 |   int mid = l + r >> 1;
      |             ~~^~~

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 70 ms 2416 KB Output is correct
2 Correct 79 ms 2428 KB Output is correct
3 Correct 87 ms 2456 KB Output is correct
4 Correct 66 ms 2436 KB Output is correct
5 Correct 65 ms 2412 KB Output is correct
6 Correct 73 ms 2404 KB Output is correct
7 Correct 71 ms 2456 KB Output is correct
8 Correct 70 ms 2476 KB Output is correct
9 Correct 70 ms 2444 KB Output is correct
10 Correct 76 ms 2476 KB Output is correct
11 Correct 82 ms 2472 KB Output is correct
12 Correct 67 ms 2384 KB Output is correct
13 Correct 67 ms 2384 KB Output is correct
14 Correct 70 ms 2484 KB Output is correct
15 Correct 94 ms 2400 KB Output is correct
16 Correct 72 ms 2508 KB Output is correct
17 Correct 67 ms 2444 KB Output is correct
18 Correct 72 ms 2480 KB Output is correct

Subtask #2
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 70 ms 2416 KB Output is correct
2 Correct 79 ms 2428 KB Output is correct
3 Correct 87 ms 2456 KB Output is correct
4 Correct 66 ms 2436 KB Output is correct
5 Correct 65 ms 2412 KB Output is correct
6 Correct 73 ms 2404 KB Output is correct
7 Correct 71 ms 2456 KB Output is correct
8 Correct 70 ms 2476 KB Output is correct
9 Correct 70 ms 2444 KB Output is correct
10 Correct 76 ms 2476 KB Output is correct
11 Correct 82 ms 2472 KB Output is correct
12 Correct 67 ms 2384 KB Output is correct
13 Correct 67 ms 2384 KB Output is correct
14 Correct 70 ms 2484 KB Output is correct
15 Correct 94 ms 2400 KB Output is correct
16 Correct 72 ms 2508 KB Output is correct
17 Correct 67 ms 2444 KB Output is correct
18 Correct 72 ms 2480 KB Output is correct
19 Correct 224 ms 10540 KB Output is correct
20 Correct 221 ms 8468 KB Output is correct
21 Correct 163 ms 10260 KB Output is correct
22 Correct 144 ms 9940 KB Output is correct
23 Correct 107 ms 2992 KB Output is correct
24 Correct 109 ms 2912 KB Output is correct
25 Correct 155 ms 10528 KB Output is correct
26 Correct 184 ms 10412 KB Output is correct
27 Correct 191 ms 10632 KB Output is correct
28 Correct 165 ms 10432 KB Output is correct
29 Correct 180 ms 10448 KB Output is correct
30 Correct 108 ms 3188 KB Output is correct
31 Correct 174 ms 10504 KB Output is correct
32 Correct 208 ms 10216 KB Output is correct
33 Correct 103 ms 3004 KB Output is correct
34 Correct 202 ms 10448 KB Output is correct
35 Correct 133 ms 9664 KB Output is correct
36 Correct 98 ms 2972 KB Output is correct
37 Correct 97 ms 2996 KB Output is correct
38 Correct 246 ms 8484 KB Output is correct
39 Correct 123 ms 7916 KB Output is correct
40 Correct 146 ms 7136 KB Output is correct
41 Correct 258 ms 10700 KB Output is correct
42 Correct 63 ms 8112 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 70 ms 2416 KB Output is correct
2 Correct 79 ms 2428 KB Output is correct
3 Correct 87 ms 2456 KB Output is correct
4 Correct 66 ms 2436 KB Output is correct
5 Correct 65 ms 2412 KB Output is correct
6 Correct 73 ms 2404 KB Output is correct
7 Correct 71 ms 2456 KB Output is correct
8 Correct 70 ms 2476 KB Output is correct
9 Correct 70 ms 2444 KB Output is correct
10 Correct 76 ms 2476 KB Output is correct
11 Correct 82 ms 2472 KB Output is correct
12 Correct 67 ms 2384 KB Output is correct
13 Correct 67 ms 2384 KB Output is correct
14 Correct 70 ms 2484 KB Output is correct
15 Correct 94 ms 2400 KB Output is correct
16 Correct 72 ms 2508 KB Output is correct
17 Correct 67 ms 2444 KB Output is correct
18 Correct 72 ms 2480 KB Output is correct
19 Correct 82 ms 2452 KB Output is correct
20 Correct 86 ms 2428 KB Output is correct
21 Correct 69 ms 2436 KB Output is correct
22 Correct 64 ms 2440 KB Output is correct
23 Correct 82 ms 2496 KB Output is correct
24 Correct 66 ms 2460 KB Output is correct
25 Correct 69 ms 2448 KB Output is correct
26 Correct 69 ms 2448 KB Output is correct
27 Correct 89 ms 2500 KB Output is correct
28 Correct 60 ms 2344 KB Output is correct
29 Correct 68 ms 2480 KB Output is correct
30 Correct 69 ms 2384 KB Output is correct
31 Correct 84 ms 2400 KB Output is correct
32 Correct 71 ms 3948 KB Output is correct
33 Correct 81 ms 4012 KB Output is correct
34 Correct 86 ms 3836 KB Output is correct
35 Correct 77 ms 3948 KB Output is correct
36 Correct 74 ms 4044 KB Output is correct
37 Correct 80 ms 4028 KB Output is correct
38 Correct 86 ms 3968 KB Output is correct
39 Correct 72 ms 4016 KB Output is correct
40 Correct 74 ms 3944 KB Output is correct
41 Correct 93 ms 3940 KB Output is correct
42 Correct 80 ms 4024 KB Output is correct
43 Correct 70 ms 4068 KB Output is correct
44 Correct 74 ms 4164 KB Output is correct

Subtask #4
51.0 / 51.0

# 결과 실행 시간 메모리 Grader output
1 Correct 70 ms 2416 KB Output is correct
2 Correct 79 ms 2428 KB Output is correct
3 Correct 87 ms 2456 KB Output is correct
4 Correct 66 ms 2436 KB Output is correct
5 Correct 65 ms 2412 KB Output is correct
6 Correct 73 ms 2404 KB Output is correct
7 Correct 71 ms 2456 KB Output is correct
8 Correct 70 ms 2476 KB Output is correct
9 Correct 70 ms 2444 KB Output is correct
10 Correct 76 ms 2476 KB Output is correct
11 Correct 82 ms 2472 KB Output is correct
12 Correct 67 ms 2384 KB Output is correct
13 Correct 67 ms 2384 KB Output is correct
14 Correct 70 ms 2484 KB Output is correct
15 Correct 94 ms 2400 KB Output is correct
16 Correct 72 ms 2508 KB Output is correct
17 Correct 67 ms 2444 KB Output is correct
18 Correct 72 ms 2480 KB Output is correct
19 Correct 224 ms 10540 KB Output is correct
20 Correct 221 ms 8468 KB Output is correct
21 Correct 163 ms 10260 KB Output is correct
22 Correct 144 ms 9940 KB Output is correct
23 Correct 107 ms 2992 KB Output is correct
24 Correct 109 ms 2912 KB Output is correct
25 Correct 155 ms 10528 KB Output is correct
26 Correct 184 ms 10412 KB Output is correct
27 Correct 191 ms 10632 KB Output is correct
28 Correct 165 ms 10432 KB Output is correct
29 Correct 180 ms 10448 KB Output is correct
30 Correct 108 ms 3188 KB Output is correct
31 Correct 174 ms 10504 KB Output is correct
32 Correct 208 ms 10216 KB Output is correct
33 Correct 103 ms 3004 KB Output is correct
34 Correct 202 ms 10448 KB Output is correct
35 Correct 133 ms 9664 KB Output is correct
36 Correct 98 ms 2972 KB Output is correct
37 Correct 97 ms 2996 KB Output is correct
38 Correct 246 ms 8484 KB Output is correct
39 Correct 123 ms 7916 KB Output is correct
40 Correct 146 ms 7136 KB Output is correct
41 Correct 258 ms 10700 KB Output is correct
42 Correct 63 ms 8112 KB Output is correct
43 Correct 82 ms 2452 KB Output is correct
44 Correct 86 ms 2428 KB Output is correct
45 Correct 69 ms 2436 KB Output is correct
46 Correct 64 ms 2440 KB Output is correct
47 Correct 82 ms 2496 KB Output is correct
48 Correct 66 ms 2460 KB Output is correct
49 Correct 69 ms 2448 KB Output is correct
50 Correct 69 ms 2448 KB Output is correct
51 Correct 89 ms 2500 KB Output is correct
52 Correct 60 ms 2344 KB Output is correct
53 Correct 68 ms 2480 KB Output is correct
54 Correct 69 ms 2384 KB Output is correct
55 Correct 84 ms 2400 KB Output is correct
56 Correct 71 ms 3948 KB Output is correct
57 Correct 81 ms 4012 KB Output is correct
58 Correct 86 ms 3836 KB Output is correct
59 Correct 77 ms 3948 KB Output is correct
60 Correct 74 ms 4044 KB Output is correct
61 Correct 80 ms 4028 KB Output is correct
62 Correct 86 ms 3968 KB Output is correct
63 Correct 72 ms 4016 KB Output is correct
64 Correct 74 ms 3944 KB Output is correct
65 Correct 93 ms 3940 KB Output is correct
66 Correct 80 ms 4024 KB Output is correct
67 Correct 70 ms 4068 KB Output is correct
68 Correct 74 ms 4164 KB Output is correct
69 Correct 247 ms 13164 KB Output is correct
70 Correct 228 ms 12156 KB Output is correct
71 Correct 102 ms 5416 KB Output is correct
72 Correct 106 ms 5324 KB Output is correct
73 Correct 111 ms 5272 KB Output is correct
74 Correct 159 ms 13252 KB Output is correct
75 Correct 109 ms 5264 KB Output is correct
76 Correct 211 ms 14148 KB Output is correct
77 Correct 170 ms 13316 KB Output is correct
78 Correct 101 ms 5352 KB Output is correct
79 Correct 142 ms 5324 KB Output is correct
80 Correct 144 ms 12752 KB Output is correct
81 Correct 117 ms 5376 KB Output is correct
82 Correct 184 ms 14216 KB Output is correct
83 Correct 160 ms 13896 KB Output is correct
84 Correct 105 ms 5316 KB Output is correct
85 Correct 113 ms 5340 KB Output is correct
86 Correct 172 ms 13040 KB Output is correct
87 Correct 255 ms 14224 KB Output is correct
88 Correct 112 ms 5244 KB Output is correct
89 Correct 161 ms 13520 KB Output is correct
90 Correct 207 ms 14112 KB Output is correct
91 Correct 116 ms 5324 KB Output is correct
92 Correct 150 ms 12924 KB Output is correct
93 Correct 119 ms 5340 KB Output is correct
94 Correct 108 ms 5348 KB Output is correct
95 Correct 106 ms 5368 KB Output is correct
96 Correct 205 ms 11968 KB Output is correct
97 Correct 135 ms 11632 KB Output is correct
98 Correct 148 ms 10568 KB Output is correct
99 Correct 305 ms 14344 KB Output is correct
100 Correct 81 ms 11104 KB Output is correct