oj.uz

Submission #471499

# Submission time Handle Problem Language Result Execution time Memory
471499 2021-09-09T14:36:49 Z FatihSolak JJOOII 2 (JOI20_ho_t2) C++17
13 / 100
 11 ms 5472 KB 
#include <bits/stdc++.h>
#define N 200005
#define int long long
using namespace std;
void ck(string s,int k){
    int cnt = 0;
    for(auto u:s){
        if(u == 'J' && cnt < k)cnt++;
        if(u == 'O' && cnt >= k && cnt < 2*k)cnt++;
        if(u == 'I' && cnt >= 2*k && cnt < 3*k)cnt++;
    }
    if(cnt != 3*k){
        cout << -1 << endl;
        exit(0);
    }
}
int J[N],O[N],I[N];
void solve(){
    int n,k;
    cin >> n >> k;
    string s;
    cin >> s;
    ck(s,k);
    s = "."+s;
    for(int i=0;i<N;i++){
        J[i] = O[i] = I[i] = N-1;
    }
    queue<int> J_J,O_O,I_I;
    for(int i=n;i>=1;i--){
        if(s[i] == 'J')J_J.push(i);
        if(s[i] == 'O')O_O.push(i);
        if(s[i] == 'I')I_I.push(i);
        if(J_J.size() > k)J_J.pop();
        if(O_O.size() > k)O_O.pop();
        if(I_I.size() > k)I_I.pop();
        if(J_J.size() == k)J[i] = J_J.front() + 1;
        if(O_O.size() == k)O[i] = O_O.front() + 1;
        if(I_I.size() == k)I[i] = I_I.front() + 1;
    }
    int maxi = 0;
    for(int i=1;i<=n;i++){
        maxi = max(maxi,i+n-I[O[J[i]]]);
    }
    cout << n - 3*k - maxi;

}

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    #ifdef Local
    freopen("in.txt","r",stdin);
    freopen("out.txt","w",stdout);
    #endif
    int t=1;
    //cin>>t;
    while(t--){
        solve();
    }
    #ifdef Local
    cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

Compilation message

ho_t2.cpp: In function 'void solve()':
ho_t2.cpp:33:23: warning: comparison of integer expressions of different signedness: 'std::queue<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   33 |         if(J_J.size() > k)J_J.pop();
      |            ~~~~~~~~~~~^~~
ho_t2.cpp:34:23: warning: comparison of integer expressions of different signedness: 'std::queue<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   34 |         if(O_O.size() > k)O_O.pop();
      |            ~~~~~~~~~~~^~~
ho_t2.cpp:35:23: warning: comparison of integer expressions of different signedness: 'std::queue<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   35 |         if(I_I.size() > k)I_I.pop();
      |            ~~~~~~~~~~~^~~
ho_t2.cpp:36:23: warning: comparison of integer expressions of different signedness: 'std::queue<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   36 |         if(J_J.size() == k)J[i] = J_J.front() + 1;
      |            ~~~~~~~~~~~^~~~
ho_t2.cpp:37:23: warning: comparison of integer expressions of different signedness: 'std::queue<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   37 |         if(O_O.size() == k)O[i] = O_O.front() + 1;
      |            ~~~~~~~~~~~^~~~
ho_t2.cpp:38:23: warning: comparison of integer expressions of different signedness: 'std::queue<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   38 |         if(I_I.size() == k)I[i] = I_I.front() + 1;
      |            ~~~~~~~~~~~^~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4920 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 4936 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 4928 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4920 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 4936 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 4928 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4924 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4924 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 3 ms 4924 KB Output is correct
22 Correct 3 ms 4940 KB Output is correct
23 Correct 3 ms 4940 KB Output is correct
24 Correct 3 ms 4940 KB Output is correct
25 Correct 3 ms 4928 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 3 ms 4940 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 3 ms 4940 KB Output is correct
34 Correct 3 ms 4940 KB Output is correct
35 Correct 3 ms 4940 KB Output is correct

Subtask #3
0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4920 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 4936 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 4928 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4924 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4924 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 3 ms 4924 KB Output is correct
22 Correct 3 ms 4940 KB Output is correct
23 Correct 3 ms 4940 KB Output is correct
24 Correct 3 ms 4940 KB Output is correct
25 Correct 3 ms 4928 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 3 ms 4940 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 3 ms 4940 KB Output is correct
34 Correct 3 ms 4940 KB Output is correct
35 Correct 3 ms 4940 KB Output is correct
36 Correct 10 ms 5352 KB Output is correct
37 Correct 10 ms 5328 KB Output is correct
38 Correct 11 ms 5456 KB Output is correct
39 Incorrect 10 ms 5472 KB Output isn't correct
40 Halted 0 ms 0 KB -