oj.uz

Submission #203642

# Submission time Handle Problem Language Result Execution time Memory
203642 2020-02-21T17:47:33 Z osaaateiasavtnl JJOOII 2 (JOI20_ho_t2) C++14
100 / 100
 42 ms 7800 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ii pair <int, int>
#define app push_back
#define all(a) a.begin(), a.end()
#define bp __builtin_popcount
#define ll long long
#define mp make_pair
#define f first
#define s second
#define Time (double)clock()/CLOCKS_PER_SEC
const int N = 2e5 + 7;
 
int n, k;
string s;
int num(char c) {
    if (c == 'J')
        return 0;
    else if (c == 'O')
        return 1;
    else
        return 2;
}   
 
vector <int> pos[N];
 
int getk(int i, vector <int> &a) {
    auto t = lower_bound(all(a), i);
    int p = t - a.begin();
    if (p + k - 1 >= a.size())
        return -1;
    else
        return a[p + k - 1];
}   
 
signed main() {
    #ifdef HOME
    freopen("input.txt", "r", stdin);
    #else
    ios_base::sync_with_stdio(0); cin.tie(0);
    #endif
    cin >> n >> k >> s;
    for (int i = 0; i < n; ++i)
        pos[num(s[i])].app(i);
    int ans = N;
    for (int l = 0; l < n; ++l) {
        int t = l;
        for (int i = 0; i < 3; ++i) {
            t = getk(t, pos[i]);
            if (t == -1)
                break;
        }   
        if (t != -1)
            ans = min(ans, t - l + 1 - 3 * k);                        
    }   
    if (ans == N)
        cout << "-1\n";
    else
        cout << ans << '\n';            
}

Compilation message

ho_t2.cpp: In function 'long long int getk(long long int, std::vector<long long int>&)':
ho_t2.cpp:31:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (p + k - 1 >= a.size())
         ~~~~~~~~~~^~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4984 KB Output is correct
2 Correct 7 ms 4984 KB Output is correct
3 Correct 7 ms 4984 KB Output is correct
4 Correct 7 ms 4984 KB Output is correct
5 Correct 7 ms 4984 KB Output is correct
6 Correct 7 ms 4984 KB Output is correct
7 Correct 7 ms 4984 KB Output is correct
8 Correct 7 ms 4984 KB Output is correct
9 Correct 7 ms 4984 KB Output is correct
10 Correct 7 ms 4984 KB Output is correct
11 Correct 7 ms 4984 KB Output is correct
12 Correct 7 ms 5112 KB Output is correct
13 Correct 7 ms 4984 KB Output is correct
14 Correct 7 ms 4984 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4984 KB Output is correct
2 Correct 7 ms 4984 KB Output is correct
3 Correct 7 ms 4984 KB Output is correct
4 Correct 7 ms 4984 KB Output is correct
5 Correct 7 ms 4984 KB Output is correct
6 Correct 7 ms 4984 KB Output is correct
7 Correct 7 ms 4984 KB Output is correct
8 Correct 7 ms 4984 KB Output is correct
9 Correct 7 ms 4984 KB Output is correct
10 Correct 7 ms 4984 KB Output is correct
11 Correct 7 ms 4984 KB Output is correct
12 Correct 7 ms 5112 KB Output is correct
13 Correct 7 ms 4984 KB Output is correct
14 Correct 7 ms 4984 KB Output is correct
15 Correct 7 ms 5112 KB Output is correct
16 Correct 7 ms 5112 KB Output is correct
17 Correct 9 ms 5112 KB Output is correct
18 Correct 7 ms 5112 KB Output is correct
19 Correct 7 ms 5112 KB Output is correct
20 Correct 8 ms 5112 KB Output is correct
21 Correct 8 ms 5116 KB Output is correct
22 Correct 7 ms 5112 KB Output is correct
23 Correct 7 ms 5112 KB Output is correct
24 Correct 7 ms 5112 KB Output is correct
25 Correct 7 ms 5116 KB Output is correct
26 Correct 7 ms 5112 KB Output is correct
27 Correct 8 ms 5112 KB Output is correct
28 Correct 7 ms 5112 KB Output is correct
29 Correct 8 ms 5112 KB Output is correct
30 Correct 7 ms 5112 KB Output is correct
31 Correct 7 ms 5112 KB Output is correct
32 Correct 8 ms 5112 KB Output is correct
33 Correct 7 ms 5112 KB Output is correct
34 Correct 7 ms 5112 KB Output is correct
35 Correct 7 ms 5112 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4984 KB Output is correct
2 Correct 7 ms 4984 KB Output is correct
3 Correct 7 ms 4984 KB Output is correct
4 Correct 7 ms 4984 KB Output is correct
5 Correct 7 ms 4984 KB Output is correct
6 Correct 7 ms 4984 KB Output is correct
7 Correct 7 ms 4984 KB Output is correct
8 Correct 7 ms 4984 KB Output is correct
9 Correct 7 ms 4984 KB Output is correct
10 Correct 7 ms 4984 KB Output is correct
11 Correct 7 ms 4984 KB Output is correct
12 Correct 7 ms 5112 KB Output is correct
13 Correct 7 ms 4984 KB Output is correct
14 Correct 7 ms 4984 KB Output is correct
15 Correct 7 ms 5112 KB Output is correct
16 Correct 7 ms 5112 KB Output is correct
17 Correct 9 ms 5112 KB Output is correct
18 Correct 7 ms 5112 KB Output is correct
19 Correct 7 ms 5112 KB Output is correct
20 Correct 8 ms 5112 KB Output is correct
21 Correct 8 ms 5116 KB Output is correct
22 Correct 7 ms 5112 KB Output is correct
23 Correct 7 ms 5112 KB Output is correct
24 Correct 7 ms 5112 KB Output is correct
25 Correct 7 ms 5116 KB Output is correct
26 Correct 7 ms 5112 KB Output is correct
27 Correct 8 ms 5112 KB Output is correct
28 Correct 7 ms 5112 KB Output is correct
29 Correct 8 ms 5112 KB Output is correct
30 Correct 7 ms 5112 KB Output is correct
31 Correct 7 ms 5112 KB Output is correct
32 Correct 8 ms 5112 KB Output is correct
33 Correct 7 ms 5112 KB Output is correct
34 Correct 7 ms 5112 KB Output is correct
35 Correct 7 ms 5112 KB Output is correct
36 Correct 35 ms 6900 KB Output is correct
37 Correct 38 ms 7468 KB Output is correct
38 Correct 42 ms 7472 KB Output is correct
39 Correct 34 ms 7408 KB Output is correct
40 Correct 30 ms 7408 KB Output is correct
41 Correct 34 ms 7536 KB Output is correct
42 Correct 35 ms 7472 KB Output is correct
43 Correct 20 ms 6548 KB Output is correct
44 Correct 23 ms 6612 KB Output is correct
45 Correct 30 ms 7536 KB Output is correct
46 Correct 29 ms 7468 KB Output is correct
47 Correct 29 ms 7408 KB Output is correct
48 Correct 28 ms 7476 KB Output is correct
49 Correct 22 ms 6520 KB Output is correct
50 Correct 29 ms 7472 KB Output is correct
51 Correct 29 ms 7540 KB Output is correct
52 Correct 21 ms 6964 KB Output is correct
53 Correct 22 ms 7528 KB Output is correct
54 Correct 21 ms 7800 KB Output is correct
55 Correct 19 ms 7796 KB Output is correct
56 Correct 19 ms 7800 KB Output is correct