oj.uz

Submission #1047827

# Submission time Handle Problem Language Result Execution time Memory
1047827 2024-08-07T16:21:09 Z manhlinh1501 Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 113 ms 88660 KB 
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
const int MAXN = 3e3 + 5;

int N, M;
char a[MAXN][MAXN];
int cO[MAXN][MAXN];
int cI[MAXN][MAXN];

signed main() {
#define TASK "code"

    if (fopen(TASK ".inp", "r")) {
        freopen(TASK ".inp", "r", stdin);
        freopen(TASK ".out", "w", stdout);
    }

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> N >> M;
    for(int i = 1; i <= N; i++) {
        for(int j = 1; j <= M; j++)
            cin >> a[i][j];
    }
    for(int i = 1; i <= N; i++) {
        int cnt = 0;
        for(int j = M; j >= 1; j--) {
            if(a[i][j] == 'O')
                cnt++;
            cO[i][j] = cnt;
        }
    }
    for(int j = 1; j <= M; j++) {
        int cnt = 0;
        for(int i = N; i >= 1; i--) {
            if(a[i][j] == 'I')
                cnt++;
            cI[i][j] = cnt;
        }
    }
    i64 ans = 0;
    for(int i = 1; i <= N; i++) {
        for(int j = 1; j <= M; j++) {
            if(a[i][j] == 'J')
                ans += 1LL * cO[i][j] * cI[i][j];
        }
    }
    cout << ans;
    return (0 ^ 0);
}

Compilation message

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:15:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         freopen(TASK ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t1.cpp:16:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         freopen(TASK ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4440 KB Output is correct
3 Correct 0 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6620 KB Output is correct
7 Correct 1 ms 6616 KB Output is correct
8 Correct 1 ms 6748 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4440 KB Output is correct
3 Correct 0 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6620 KB Output is correct
7 Correct 1 ms 6616 KB Output is correct
8 Correct 1 ms 6748 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 4 ms 19032 KB Output is correct
15 Correct 1 ms 14684 KB Output is correct
16 Correct 2 ms 10840 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 4 ms 19036 KB Output is correct
19 Correct 4 ms 19036 KB Output is correct
20 Correct 4 ms 16988 KB Output is correct
21 Correct 4 ms 19036 KB Output is correct
22 Correct 4 ms 19140 KB Output is correct
23 Correct 5 ms 16988 KB Output is correct
24 Correct 5 ms 19272 KB Output is correct
25 Correct 6 ms 19036 KB Output is correct
26 Correct 4 ms 17056 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4440 KB Output is correct
3 Correct 0 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6620 KB Output is correct
7 Correct 1 ms 6616 KB Output is correct
8 Correct 1 ms 6748 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 4 ms 19032 KB Output is correct
15 Correct 1 ms 14684 KB Output is correct
16 Correct 2 ms 10840 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 4 ms 19036 KB Output is correct
19 Correct 4 ms 19036 KB Output is correct
20 Correct 4 ms 16988 KB Output is correct
21 Correct 4 ms 19036 KB Output is correct
22 Correct 4 ms 19140 KB Output is correct
23 Correct 5 ms 16988 KB Output is correct
24 Correct 5 ms 19272 KB Output is correct
25 Correct 6 ms 19036 KB Output is correct
26 Correct 4 ms 17056 KB Output is correct
27 Correct 105 ms 88148 KB Output is correct
28 Correct 5 ms 66136 KB Output is correct
29 Correct 6 ms 11488 KB Output is correct
30 Correct 1 ms 4696 KB Output is correct
31 Correct 73 ms 76368 KB Output is correct
32 Correct 102 ms 88632 KB Output is correct
33 Correct 109 ms 88660 KB Output is correct
34 Correct 85 ms 86608 KB Output is correct
35 Correct 97 ms 88640 KB Output is correct
36 Correct 90 ms 88656 KB Output is correct
37 Correct 113 ms 88516 KB Output is correct
38 Correct 63 ms 76348 KB Output is correct
39 Correct 67 ms 76348 KB Output is correct