oj.uz

Submission #1089083

# Submission time Handle Problem Language Result Execution time Memory
1089083 2024-09-15T22:47:35 Z Izzy JJOOII 2 (JOI20_ho_t2) C++14
100 / 100
 28 ms 3316 KB 
#include <iostream>
#include <string>
#include <vector>
// #include <unordered_map>
using namespace std;

string s;
int n; 
int k;

int find(int target, int low, vector<int> &arr) {
    int high = n;
    int working = -1;
    int mid;

    while (low <= high) {
        mid = (low + high) / 2;
        if (arr[mid] >= target) {
            working = mid;
            high = mid - 1;
        } 
        else if (arr[mid] < target) {
            low = mid + 1;
        }
    }
    return working;
}

int main() {
    cin >> n;
    cin >> k;
    cin >> s;

    vector<int> jPref = {0};
    vector<int> oPref = {0};
    vector<int> iPref = {0};

    int jCount = 0;
    int oCount = 0;
    int iCount = 0;
    for (auto p: s) {
        if (p == 'J') {
            jCount++;
        }
        else if (p == 'O') {
            oCount++;
        }
        else if (p == 'I') {
            iCount++;
        }
        jPref.push_back(jCount);
        oPref.push_back(oCount);
        iPref.push_back(iCount); 
    }

    int counter = 200001;

    for (int p = 1; p < n + 1; p++) {
        int jPos = find(jPref[p - 1] + k, p, jPref);
        // cout << jPos << ' ';
        if (jPos == -1) {
            break;
        }
        int oPos = find(oPref[jPos] + k, jPos, oPref);
        // cout << oPos << ' ';
        if (oPos == -1) {
            break;
        }
        int iPos = find(iPref[oPos] + k, oPos, iPref);
        // cout << iPos << ' ';
        if (iPos == -1) {
            break;
        }
        // cout << counter << endl;
        counter = min(counter, iPos - p - 3 * k + 1);
    }
    if (counter == 200001) {
        counter = -1;
    }
    cout << counter;
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 344 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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 420 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 344 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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 420 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 436 KB Output is correct
18 Correct 0 ms 440 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 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 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 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 436 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 344 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 344 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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 420 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 436 KB Output is correct
18 Correct 0 ms 440 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 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 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 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 436 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 19 ms 3028 KB Output is correct
37 Correct 20 ms 3308 KB Output is correct
38 Correct 21 ms 3268 KB Output is correct
39 Correct 19 ms 3272 KB Output is correct
40 Correct 10 ms 3268 KB Output is correct
41 Correct 17 ms 3272 KB Output is correct
42 Correct 28 ms 3272 KB Output is correct
43 Correct 4 ms 2260 KB Output is correct
44 Correct 6 ms 2876 KB Output is correct
45 Correct 6 ms 3208 KB Output is correct
46 Correct 6 ms 3272 KB Output is correct
47 Correct 6 ms 3268 KB Output is correct
48 Correct 7 ms 3272 KB Output is correct
49 Correct 5 ms 3028 KB Output is correct
50 Correct 7 ms 3316 KB Output is correct
51 Correct 7 ms 3272 KB Output is correct
52 Correct 6 ms 3272 KB Output is correct
53 Correct 7 ms 3272 KB Output is correct
54 Correct 10 ms 3276 KB Output is correct
55 Correct 6 ms 3272 KB Output is correct
56 Correct 5 ms 3272 KB Output is correct