oj.uz

Submission #959177

# Submission time Handle Problem Language Result Execution time Memory
959177 2024-04-07T14:48:38 Z huutuan Misspelling (JOI22_misspelling) C++14
100 / 100
 492 ms 183316 KB 
#include<bits/stdc++.h>

using namespace std;

// #define int long long
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define isz(x) ((int)x.size())
#define sumof(x) accumulate(all(x), 0ll)

const int N=5e5+10, mod=1e9+7;
int n, m;
int f[N][26], ff[N][26];
vector<pair<int, int>> g[N];
int pf[2][26];

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

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

void solve(){
   cin >> n >> m;
   for (int i=1; i<=m; ++i){
      int u, v; cin >> u >> v;
      if (u<v){
         g[u].emplace_back(v, 0);
      }else{
         g[v].emplace_back(u, 1);
      }
   }
   vector<set<int>> pos(2);
   for (int i=1; i<=n; ++i) pos[0].insert(i);
   pos[1]=pos[0];
   for (int i=0; i<26; ++i) f[n][i]=1, ff[n][i]=i+1;
   for (int i=0; i<26; ++i) pf[0][i]=pf[1][i]=i+1;
   for (int i=n-1; i>=1; --i){
      for (auto &j:g[i]){
         int l=i+1, r=j.first, k=j.second;
         for (auto it=pos[k^1].lower_bound(l); it!=pos[k^1].end() && (*it)<=r; it=pos[k^1].erase(it)){
            for (int t=0; t<26; ++t) pf[k^1][t]=sub(pf[k^1][t], ff[*it][t]);
         }
      }
      for (int j=0; j<26; ++j){
         f[i][j]=1;
         if (j) f[i][j]=add(f[i][j], pf[0][j-1]);
         f[i][j]=add(f[i][j], sub(pf[1][25], pf[1][j]));
      }
      for (int j=0; j<26; ++j){
         ff[i][j]=f[i][j];
         if (j) ff[i][j]=add(ff[i][j], ff[i][j-1]);
         pf[0][j]=add(pf[0][j], ff[i][j]);
         pf[1][j]=add(pf[1][j], ff[i][j]);
      }
   }
   int ans=0;
   for (int j=0; j<26; ++j) ans=add(ans, f[1][j]);
   cout << ans;
}

int32_t main(){
   ios_base::sync_with_stdio(false);
   cin.tie(nullptr);
   int ntests=1;
   // cin >> ntests;
   for (int i=1; i<=ntests; ++i) solve();
   return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14940 KB Output is correct
2 Correct 3 ms 14940 KB Output is correct
3 Correct 4 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 3 ms 14940 KB Output is correct
6 Correct 3 ms 14940 KB Output is correct
7 Correct 4 ms 14940 KB Output is correct
8 Correct 3 ms 14940 KB Output is correct
9 Correct 3 ms 14992 KB Output is correct
10 Correct 3 ms 15004 KB Output is correct
11 Correct 3 ms 14940 KB Output is correct
12 Correct 3 ms 14940 KB Output is correct
13 Correct 3 ms 14940 KB Output is correct
14 Correct 3 ms 14940 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14940 KB Output is correct
2 Correct 3 ms 14940 KB Output is correct
3 Correct 4 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 3 ms 14940 KB Output is correct
6 Correct 3 ms 14940 KB Output is correct
7 Correct 4 ms 14940 KB Output is correct
8 Correct 3 ms 14940 KB Output is correct
9 Correct 3 ms 14992 KB Output is correct
10 Correct 3 ms 15004 KB Output is correct
11 Correct 3 ms 14940 KB Output is correct
12 Correct 3 ms 14940 KB Output is correct
13 Correct 3 ms 14940 KB Output is correct
14 Correct 3 ms 14940 KB Output is correct
15 Correct 3 ms 14940 KB Output is correct
16 Correct 4 ms 14936 KB Output is correct
17 Correct 4 ms 14936 KB Output is correct
18 Correct 4 ms 14940 KB Output is correct
19 Correct 4 ms 14988 KB Output is correct
20 Correct 3 ms 14940 KB Output is correct
21 Correct 3 ms 14940 KB Output is correct
22 Correct 4 ms 15196 KB Output is correct
23 Correct 3 ms 14940 KB Output is correct
24 Correct 3 ms 14940 KB Output is correct
25 Correct 3 ms 14940 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14940 KB Output is correct
2 Correct 4 ms 14936 KB Output is correct
3 Correct 3 ms 14936 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 410 ms 183016 KB Output is correct
6 Correct 384 ms 183204 KB Output is correct
7 Correct 399 ms 183196 KB Output is correct
8 Correct 367 ms 183124 KB Output is correct
9 Correct 351 ms 183132 KB Output is correct
10 Correct 19 ms 21552 KB Output is correct
11 Correct 4 ms 15028 KB Output is correct
12 Correct 3 ms 14940 KB Output is correct
13 Correct 439 ms 177852 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14940 KB Output is correct
2 Correct 3 ms 14940 KB Output is correct
3 Correct 4 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 3 ms 14940 KB Output is correct
6 Correct 3 ms 14940 KB Output is correct
7 Correct 4 ms 14940 KB Output is correct
8 Correct 3 ms 14940 KB Output is correct
9 Correct 3 ms 14992 KB Output is correct
10 Correct 3 ms 15004 KB Output is correct
11 Correct 3 ms 14940 KB Output is correct
12 Correct 3 ms 14940 KB Output is correct
13 Correct 3 ms 14940 KB Output is correct
14 Correct 3 ms 14940 KB Output is correct
15 Correct 3 ms 14940 KB Output is correct
16 Correct 4 ms 14936 KB Output is correct
17 Correct 4 ms 14936 KB Output is correct
18 Correct 4 ms 14940 KB Output is correct
19 Correct 4 ms 14988 KB Output is correct
20 Correct 3 ms 14940 KB Output is correct
21 Correct 3 ms 14940 KB Output is correct
22 Correct 4 ms 15196 KB Output is correct
23 Correct 3 ms 14940 KB Output is correct
24 Correct 3 ms 14940 KB Output is correct
25 Correct 3 ms 14940 KB Output is correct
26 Correct 17 ms 21596 KB Output is correct
27 Correct 17 ms 21596 KB Output is correct
28 Correct 15 ms 21392 KB Output is correct
29 Correct 17 ms 21660 KB Output is correct
30 Correct 18 ms 21416 KB Output is correct
31 Correct 107 ms 31852 KB Output is correct
32 Correct 15 ms 21596 KB Output is correct
33 Correct 17 ms 21820 KB Output is correct
34 Correct 17 ms 21592 KB Output is correct
35 Correct 119 ms 32136 KB Output is correct
36 Correct 10 ms 20824 KB Output is correct
37 Correct 16 ms 21340 KB Output is correct
38 Correct 15 ms 21328 KB Output is correct
39 Correct 18 ms 21080 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14940 KB Output is correct
2 Correct 3 ms 14940 KB Output is correct
3 Correct 4 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 3 ms 14940 KB Output is correct
6 Correct 3 ms 14940 KB Output is correct
7 Correct 4 ms 14940 KB Output is correct
8 Correct 3 ms 14940 KB Output is correct
9 Correct 3 ms 14992 KB Output is correct
10 Correct 3 ms 15004 KB Output is correct
11 Correct 3 ms 14940 KB Output is correct
12 Correct 3 ms 14940 KB Output is correct
13 Correct 3 ms 14940 KB Output is correct
14 Correct 3 ms 14940 KB Output is correct
15 Correct 3 ms 14940 KB Output is correct
16 Correct 4 ms 14936 KB Output is correct
17 Correct 4 ms 14936 KB Output is correct
18 Correct 4 ms 14940 KB Output is correct
19 Correct 4 ms 14988 KB Output is correct
20 Correct 3 ms 14940 KB Output is correct
21 Correct 3 ms 14940 KB Output is correct
22 Correct 4 ms 15196 KB Output is correct
23 Correct 3 ms 14940 KB Output is correct
24 Correct 3 ms 14940 KB Output is correct
25 Correct 3 ms 14940 KB Output is correct
26 Correct 3 ms 14940 KB Output is correct
27 Correct 4 ms 14936 KB Output is correct
28 Correct 3 ms 14936 KB Output is correct
29 Correct 4 ms 14940 KB Output is correct
30 Correct 410 ms 183016 KB Output is correct
31 Correct 384 ms 183204 KB Output is correct
32 Correct 399 ms 183196 KB Output is correct
33 Correct 367 ms 183124 KB Output is correct
34 Correct 351 ms 183132 KB Output is correct
35 Correct 19 ms 21552 KB Output is correct
36 Correct 4 ms 15028 KB Output is correct
37 Correct 3 ms 14940 KB Output is correct
38 Correct 439 ms 177852 KB Output is correct
39 Correct 17 ms 21596 KB Output is correct
40 Correct 17 ms 21596 KB Output is correct
41 Correct 15 ms 21392 KB Output is correct
42 Correct 17 ms 21660 KB Output is correct
43 Correct 18 ms 21416 KB Output is correct
44 Correct 107 ms 31852 KB Output is correct
45 Correct 15 ms 21596 KB Output is correct
46 Correct 17 ms 21820 KB Output is correct
47 Correct 17 ms 21592 KB Output is correct
48 Correct 119 ms 32136 KB Output is correct
49 Correct 10 ms 20824 KB Output is correct
50 Correct 16 ms 21340 KB Output is correct
51 Correct 15 ms 21328 KB Output is correct
52 Correct 18 ms 21080 KB Output is correct
53 Correct 320 ms 172060 KB Output is correct
54 Correct 278 ms 172076 KB Output is correct
55 Correct 470 ms 179120 KB Output is correct
56 Correct 492 ms 178772 KB Output is correct
57 Correct 376 ms 183176 KB Output is correct
58 Correct 373 ms 183064 KB Output is correct
59 Correct 382 ms 183316 KB Output is correct
60 Correct 486 ms 177424 KB Output is correct
61 Correct 208 ms 160888 KB Output is correct
62 Correct 395 ms 173952 KB Output is correct
63 Correct 346 ms 170136 KB Output is correct
64 Correct 314 ms 165904 KB Output is correct