oj.uz

Submission #996752

# Submission time Handle Problem Language Result Execution time Memory
996752 2024-06-11T06:51:05 Z cot JJOOII 2 (JOI20_ho_t2) C++14
100 / 100
 11 ms 6156 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <math.h>
#include <set>
#define int long long
#define ff first
#define ss second
#define pb push_back
#define pp pop_back
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define r0 return 0
using namespace std;
const int N = 3 * 1e5 + 5, M = 55, MOD = 998244353;
int n,m,k,l,r,q,cur,pos1,pos2,ans;
string s;
int pref1[N],pref2[N],pref3[N];
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin >> n >> k;
    cin >> s; s = " " + s;
    
    for (int i = 1; i <= n; i++) {
        pref1[i] = pref1[i - 1] + (s[i] == 'J');
        pref2[i] = pref2[i - 1] + (s[i] == 'O');
        pref3[i] = pref3[i - 1] + (s[i] == 'I');
    }
    ans = 1e9;
    for (int i = 1; i <= n; i++) {
        if (s[i] != 'J') continue;
        
        int l = 1,r = i;
        pos1 = 1e9;
        while (l <= r) {
            int mid = (l + r) / 2;
            if (pref1[i] - pref1[mid - 1] >= k) {
                pos1 = mid;
                l = mid + 1;
            } else {
                r = mid - 1;
            }
        }
        if (pos1 == 1e9) continue;
//        cout << 1 << endl;
        
        cur = 1e9;
        l = i; r = n;
        while (l <= r) {
            int mid = (l + r) / 2;
            if (pref2[mid] - pref2[i - 1] >= k) {
                cur = mid;
                r = mid - 1;
            } else {
                l = mid + 1;
            }
        }
        if(cur == 1e9) continue;
//        cout << 2 << endl;
        
        pos2 = 1e9;
        l = cur; r = n;
        while (l <= r) {
            int mid = (l + r) / 2;
            if (pref3[mid] - pref3[cur - 1] >= k) {
                pos2 = mid;
                r = mid - 1;
            } else {
                l = mid + 1;
            }
        }
        if (pos2 == 1e9) continue;
//        cout << 3 << endl;
        
        ans = min(ans,pos2 - pos1 + 1 - 3 * k);
    }
    if (ans == 1e9) {
        cout << -1 << endl;
    } else {
        cout << ans << endl;
    }
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 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 0 ms 344 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 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 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 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 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 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 448 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 344 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 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 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 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 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 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 448 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 344 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 9 ms 5680 KB Output is correct
37 Correct 10 ms 5924 KB Output is correct
38 Correct 9 ms 5924 KB Output is correct
39 Correct 11 ms 5904 KB Output is correct
40 Correct 8 ms 6148 KB Output is correct
41 Correct 10 ms 6140 KB Output is correct
42 Correct 11 ms 5924 KB Output is correct
43 Correct 4 ms 4956 KB Output is correct
44 Correct 5 ms 5200 KB Output is correct
45 Correct 9 ms 5984 KB Output is correct
46 Correct 7 ms 5924 KB Output is correct
47 Correct 7 ms 6156 KB Output is correct
48 Correct 7 ms 5920 KB Output is correct
49 Correct 5 ms 4704 KB Output is correct
50 Correct 7 ms 5924 KB Output is correct
51 Correct 9 ms 5924 KB Output is correct
52 Correct 5 ms 5932 KB Output is correct
53 Correct 6 ms 5924 KB Output is correct
54 Correct 8 ms 5924 KB Output is correct
55 Correct 5 ms 5924 KB Output is correct
56 Correct 3 ms 5924 KB Output is correct