oj.uz

Submission #1088771

# Submission time Handle Problem Language Result Execution time Memory
1088771 2024-09-15T03:06:24 Z ntdaccode JJOOII 2 (JOI20_ho_t2) C++17
100 / 100
 7 ms 6932 KB 
#include<bits/stdc++.h>
#define fori(i,a,b) for(int i=a;i<=b;i++)
#define int long long
#define ii pair<int,int>
#define fi first
#define se second
#define pb push_back
using namespace std;
const int mod=1e9+7;
const int M=2e5+10;
const int N=1e3+10;
int n,k;
string s;
int sum[4][M];
char ch[4]={'J','O','I'};
bool check(int l,int r)
{
  fori(i,0,2) if(sum[i][r]-sum[i][l-1]<k) return false;
  return true;
}
int id(char ch2)
{
  fori(i,0,2) if(ch2==ch[i]) return i;
}
vector<int> v[4];
int32_t main()
{
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  #define task "1"
  if(fopen(task".inp","r"))
  {
    freopen(task".inp","r",stdin);
    freopen(task".out","w",stdout);
  }
  cin >> n >> k;
  cin >> s;
  s=' '+s;
  fori(i,1,n) v[id(s[i])].pb(i);
  fori(i,0,n+1)
  {
    sum[0][i]=-1e9;
    sum[2][i]=1e9;
  }
  int kq=1e9;
  for(int i=k-1;i<=v[0].size()-1;i++) sum[0][v[0][i]]=v[0][i-k+1];
  fori(i,1,n) sum[0][i]=max(sum[0][i-1],sum[0][i]);
  for(int i=v[2].size()-k;i>=0;i--) sum[2][v[2][i]]=v[2][i+k-1];
  for(int i=n;i!=0;i--) sum[2][i]=min(sum[2][i],sum[2][i+1]);
  if(v[1].size())
  for(int i=k-1;i<=v[1].size()-1;i++)
  {
    kq=min(kq,sum[2][v[1][i]]-sum[0][v[1][i-k+1]]+1);
    //cout << sum[2][v[1][i]] << " " << sum[0][v[1][i-k+1]] << "\n";
  }
  cout << (kq>n ? -1 :kq-3*k);
}

Compilation message

ho_t2.cpp: In function 'int32_t main()':
ho_t2.cpp:47:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |   for(int i=k-1;i<=v[0].size()-1;i++) sum[0][v[0][i]]=v[0][i-k+1];
      |                 ~^~~~~~~~~~~~~~~
ho_t2.cpp:52:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |   for(int i=k-1;i<=v[1].size()-1;i++)
      |                 ~^~~~~~~~~~~~~~~
ho_t2.cpp: In function 'long long int id(char)':
ho_t2.cpp:24:1: warning: control reaches end of non-void function [-Wreturn-type]
   24 | }
      | ^
ho_t2.cpp: In function 'int32_t main()':
ho_t2.cpp:34:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |     freopen(task".inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
ho_t2.cpp:35:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |     freopen(task".out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 2396 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 464 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 2396 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 2396 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 464 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 2396 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 6 ms 5672 KB Output is correct
37 Correct 6 ms 5688 KB Output is correct
38 Correct 6 ms 5488 KB Output is correct
39 Correct 6 ms 6536 KB Output is correct
40 Correct 6 ms 5608 KB Output is correct
41 Correct 6 ms 6928 KB Output is correct
42 Correct 7 ms 6552 KB Output is correct
43 Correct 4 ms 4892 KB Output is correct
44 Correct 5 ms 5704 KB Output is correct
45 Correct 6 ms 6928 KB Output is correct
46 Correct 6 ms 6928 KB Output is correct
47 Correct 6 ms 6808 KB Output is correct
48 Correct 6 ms 6888 KB Output is correct
49 Correct 4 ms 5208 KB Output is correct
50 Correct 6 ms 6928 KB Output is correct
51 Correct 6 ms 6932 KB Output is correct
52 Correct 5 ms 6692 KB Output is correct
53 Correct 6 ms 6840 KB Output is correct
54 Correct 5 ms 5596 KB Output is correct
55 Correct 6 ms 5668 KB Output is correct
56 Correct 5 ms 5532 KB Output is correct