oj.uz

Submission #1086317

# Submission time Handle Problem Language Result Execution time Memory
1086317 2024-09-10T07:08:01 Z kiethm07 Bitaro the Brave (JOI19_ho_t1) C++11
100 / 100
 213 ms 88512 KB 
#include <bits/stdc++.h>

#define pii pair<int,int>
#define iii pair<int,pii>
#define fi first
#define se second

#define vi vector<int>
#define all(x) x.begin(),x.end()

#define TEXT "a"

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;

const int inf = 1e9 + 7;
const ld eps = 1e-8;
const double pi = acos(-1);
const int N = 3005;

int n,m;
char a[N][N];
int row[N][N], col[N][N];

int main(){
    cin.tie(0) -> sync_with_stdio(0);
    if (fopen(TEXT".inp","r")){
        freopen(TEXT".inp","r",stdin);
        freopen(TEXT".out","w",stdout);
    }
    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++){
        for (int j = 1; j <= m; j++){
            col[i][j] = col[i][j - 1] + (a[i][j] == 'O');
        }
    }
    for (int j = 1; j <= m; j++){
        for (int i = 1; i <= n; i++){
            row[i][j] = row[i - 1][j] + (a[i][j] == 'I');
        }
    }
    ll res = 0;
    for (int i = 1; i <= n; i++){
        for (int j = 1; j <= m; j++){
            if (a[i][j] != 'J') continue;
            ll x = row[n][j] - row[i][j];
            ll y = col[i][m] - col[i][j];
            res += x * y;
        }
    }
    cout << res << "\n";
    return 0;
}

Compilation message

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:31:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |         freopen(TEXT".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t1.cpp:32:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |         freopen(TEXT".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# 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 1 ms 1628 KB Output is correct
6 Correct 1 ms 1628 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1468 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 1 ms 1500 KB Output is correct
11 Correct 1 ms 1628 KB Output is correct
12 Correct 1 ms 1880 KB Output is correct
13 Correct 1 ms 1372 KB Output is correct

Subtask #2
30.0 / 30.0

# 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 1 ms 1628 KB Output is correct
6 Correct 1 ms 1628 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1468 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 1 ms 1500 KB Output is correct
11 Correct 1 ms 1628 KB Output is correct
12 Correct 1 ms 1880 KB Output is correct
13 Correct 1 ms 1372 KB Output is correct
14 Correct 6 ms 7516 KB Output is correct
15 Correct 3 ms 4956 KB Output is correct
16 Correct 4 ms 4444 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 8 ms 7908 KB Output is correct
19 Correct 6 ms 8028 KB Output is correct
20 Correct 7 ms 7772 KB Output is correct
21 Correct 7 ms 8028 KB Output is correct
22 Correct 6 ms 8052 KB Output is correct
23 Correct 8 ms 7772 KB Output is correct
24 Correct 8 ms 8028 KB Output is correct
25 Correct 6 ms 8028 KB Output is correct
26 Correct 6 ms 7968 KB Output is correct

Subtask #3
50.0 / 50.0

# 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 1 ms 1628 KB Output is correct
6 Correct 1 ms 1628 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1468 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 1 ms 1500 KB Output is correct
11 Correct 1 ms 1628 KB Output is correct
12 Correct 1 ms 1880 KB Output is correct
13 Correct 1 ms 1372 KB Output is correct
14 Correct 6 ms 7516 KB Output is correct
15 Correct 3 ms 4956 KB Output is correct
16 Correct 4 ms 4444 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 8 ms 7908 KB Output is correct
19 Correct 6 ms 8028 KB Output is correct
20 Correct 7 ms 7772 KB Output is correct
21 Correct 7 ms 8028 KB Output is correct
22 Correct 6 ms 8052 KB Output is correct
23 Correct 8 ms 7772 KB Output is correct
24 Correct 8 ms 8028 KB Output is correct
25 Correct 6 ms 8028 KB Output is correct
26 Correct 6 ms 7968 KB Output is correct
27 Correct 191 ms 87984 KB Output is correct
28 Correct 10 ms 25948 KB Output is correct
29 Correct 12 ms 7808 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 151 ms 72648 KB Output is correct
32 Correct 180 ms 88404 KB Output is correct
33 Correct 181 ms 88144 KB Output is correct
34 Correct 166 ms 84048 KB Output is correct
35 Correct 186 ms 88400 KB Output is correct
36 Correct 192 ms 88272 KB Output is correct
37 Correct 213 ms 88512 KB Output is correct
38 Correct 140 ms 72528 KB Output is correct
39 Correct 144 ms 72248 KB Output is correct