Submission #1075275

# Submission time Handle Problem Language Result Execution time Memory
1075275 2024-08-25T23:24:33 Z quangminh412 Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
140 ms 88680 KB
#include <bits/stdc++.h>
using namespace std;

/*
  John Watson
  https://codeforces.com/profile/quangminh98

  Mua Code nhu mua Florentino !!
*/

#define faster() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define ll long long

const int maxn = 3009;

int preO[maxn][maxn], preI[maxn][maxn];
char a[maxn][maxn];
int H, W;

signed main()
{
	if (fopen("test.inp", "r"))
	{
		freopen("test.inp", "r", stdin);
		freopen("test.out", "w", stdout);
	}
	faster();

	cin >> H >> W;
	for (int i = 1; i <= H; i++)
		for (int j = 1; j <= W; j++)
		{
			cin >> a[i][j];
			
			preO[i][j] = preO[i][j - 1] + (a[i][j] == 'O');
			preI[i][j] = preI[i - 1][j] + (a[i][j] == 'I');  
		}

	ll res = 0;
	for (int i = 1; i <= H; i++)
		for (int j = 1; j <= W; j++)
			if (a[i][j] == 'J')
				res += (preO[i][W] - preO[i][j]) * (preI[H][j] - preI[i][j]);

	cout << res << '\n';

	return 0;
}

Compilation message

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:24:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |   freopen("test.inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t1.cpp:25:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |   freopen("test.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 3420 KB Output is correct
6 Correct 1 ms 3672 KB Output is correct
7 Correct 1 ms 3420 KB Output is correct
8 Correct 1 ms 3420 KB Output is correct
9 Correct 1 ms 3420 KB Output is correct
10 Correct 1 ms 3420 KB Output is correct
11 Correct 1 ms 3420 KB Output is correct
12 Correct 1 ms 3420 KB Output is correct
13 Correct 1 ms 3420 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 3420 KB Output is correct
6 Correct 1 ms 3672 KB Output is correct
7 Correct 1 ms 3420 KB Output is correct
8 Correct 1 ms 3420 KB Output is correct
9 Correct 1 ms 3420 KB Output is correct
10 Correct 1 ms 3420 KB Output is correct
11 Correct 1 ms 3420 KB Output is correct
12 Correct 1 ms 3420 KB Output is correct
13 Correct 1 ms 3420 KB Output is correct
14 Correct 5 ms 8028 KB Output is correct
15 Correct 2 ms 5980 KB Output is correct
16 Correct 5 ms 5724 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 5 ms 9564 KB Output is correct
19 Correct 5 ms 9548 KB Output is correct
20 Correct 5 ms 9560 KB Output is correct
21 Correct 6 ms 8796 KB Output is correct
22 Correct 5 ms 9820 KB Output is correct
23 Correct 5 ms 8796 KB Output is correct
24 Correct 6 ms 9736 KB Output is correct
25 Correct 5 ms 9816 KB Output is correct
26 Correct 6 ms 8796 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 3420 KB Output is correct
6 Correct 1 ms 3672 KB Output is correct
7 Correct 1 ms 3420 KB Output is correct
8 Correct 1 ms 3420 KB Output is correct
9 Correct 1 ms 3420 KB Output is correct
10 Correct 1 ms 3420 KB Output is correct
11 Correct 1 ms 3420 KB Output is correct
12 Correct 1 ms 3420 KB Output is correct
13 Correct 1 ms 3420 KB Output is correct
14 Correct 5 ms 8028 KB Output is correct
15 Correct 2 ms 5980 KB Output is correct
16 Correct 5 ms 5724 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 5 ms 9564 KB Output is correct
19 Correct 5 ms 9548 KB Output is correct
20 Correct 5 ms 9560 KB Output is correct
21 Correct 6 ms 8796 KB Output is correct
22 Correct 5 ms 9820 KB Output is correct
23 Correct 5 ms 8796 KB Output is correct
24 Correct 6 ms 9736 KB Output is correct
25 Correct 5 ms 9816 KB Output is correct
26 Correct 6 ms 8796 KB Output is correct
27 Correct 125 ms 88148 KB Output is correct
28 Correct 9 ms 27480 KB Output is correct
29 Correct 9 ms 9308 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 98 ms 72720 KB Output is correct
32 Correct 128 ms 88680 KB Output is correct
33 Correct 135 ms 88304 KB Output is correct
34 Correct 117 ms 84312 KB Output is correct
35 Correct 119 ms 88656 KB Output is correct
36 Correct 110 ms 88400 KB Output is correct
37 Correct 140 ms 88656 KB Output is correct
38 Correct 86 ms 72532 KB Output is correct
39 Correct 83 ms 72276 KB Output is correct