oj.uz

Submission #809079

# Submission time Handle Problem Language Result Execution time Memory
809079 2023-08-05T15:46:32 Z vjudge1 Bitaro the Brave (JOI19_ho_t1) C++17
50 / 100
 1000 ms 52684 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int h, w;
    cin >> h >> w;

    vector<vector<int>> J(h), O(h), I(w);

    for (int i = 0; i < h; i++) {
        string s;
        cin >> s;
        for (int j = 0; j < w; j++) {
            if (s[j] == 'J') {
                J[i].push_back(j);
            } else if (s[j] == 'O') {
                O[i].push_back(j);
            } else {
                I[j].push_back(i);
            }
        }
    }

    for (int i = 0; i < w; i++) {
        sort(I[i].begin(), I[i].end());
    }

    long long ans = 0;
    for (int i = 0; i < h; i++) {
        for (int l = 0; l < O[i].size(); l++) { // Đổi j thành l ở đây
            for (int j = 0; j < J[i].size(); j++) { // Đổi l thành j ở đây
                if (O[i][l] > J[i][j]) {
                    int temp = I[J[i][j]].size();
                    int left = 0, right = I[J[i][j]].size() - 1;
                    while (left <= right) {
                        int mid = left + (right - left) / 2;
                        if (I[J[i][j]][mid] > i) {
                            temp = mid;
                            right = mid - 1;
                        } else {
                            left = mid + 1;
                        }
                    }
                    ans += I[J[i][j]].size() - temp;
                }
            }
        }
    }

    cout << ans;
    return 0;
}

Compilation message

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:34:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         for (int l = 0; l < O[i].size(); l++) { // Đổi j thành l ở đây
      |                         ~~^~~~~~~~~~~~~
joi2019_ho_t1.cpp:35:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |             for (int j = 0; j < J[i].size(); j++) { // Đổi l thành j ở đây
      |                             ~~^~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 49 ms 1532 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 12 ms 980 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 83 ms 2004 KB Output is correct
19 Correct 19 ms 1620 KB Output is correct
20 Correct 180 ms 1364 KB Output is correct
21 Correct 84 ms 2260 KB Output is correct
22 Correct 37 ms 1936 KB Output is correct
23 Correct 175 ms 1620 KB Output is correct
24 Correct 114 ms 1940 KB Output is correct
25 Correct 18 ms 1876 KB Output is correct
26 Correct 175 ms 1616 KB Output is correct

Subtask #3
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 49 ms 1532 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 12 ms 980 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 83 ms 2004 KB Output is correct
19 Correct 19 ms 1620 KB Output is correct
20 Correct 180 ms 1364 KB Output is correct
21 Correct 84 ms 2260 KB Output is correct
22 Correct 37 ms 1936 KB Output is correct
23 Correct 175 ms 1620 KB Output is correct
24 Correct 114 ms 1940 KB Output is correct
25 Correct 18 ms 1876 KB Output is correct
26 Correct 175 ms 1616 KB Output is correct
27 Execution timed out 1084 ms 52684 KB Time limit exceeded
28 Halted 0 ms 0 KB -