oj.uz

Submission #872946

# Submission time Handle Problem Language Result Execution time Memory
872946 2023-11-14T07:05:38 Z 20163070 Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 321 ms 159400 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long

const int N=3010;

int n,m;
char a[N][N];
int h[N][N],h2[N][N];
//h(i,j) i<k j<l 
//h2(k,j) i<k j<l 

signed main()
{
	cin>>n>>m;
	for(int i=1;i<=n;i++)
	{
		cin>>a[i]+1;
	}
	for(int l=1;l<=m;l++)
	{
		for(int i=n;i>=1;i--)
		{
			h[i][l]+=h[i+1][l];
			if(a[i+1][l]=='I') h[i][l]++;
		}
	}
	for(int k=1;k<=n;k++)
	{
		for(int j=m;j>=1;j--)
		{
			h2[k][j]+=h2[k][j+1];
			if(a[k][j+1]=='O') h2[k][j]++;
		}
	}
	int res=0;
	for(int i=1;i<=n;i++)
	{
		for(int j=1;j<=m;j++)
		{
			if(a[i][j]=='J')
			{
				res+=h[i][j]*h2[i][j];

			}
		}
	}
	cout<<res;
	return 0;
}

Compilation message

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:19:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   19 |   cin>>a[i]+1;
      |        ~~~~^~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 3420 KB Output is correct
6 Correct 1 ms 3420 KB Output is correct
7 Correct 1 ms 3164 KB Output is correct
8 Correct 1 ms 3416 KB Output is correct
9 Correct 2 ms 3420 KB Output is correct
10 Correct 1 ms 3164 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 3164 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 3420 KB Output is correct
6 Correct 1 ms 3420 KB Output is correct
7 Correct 1 ms 3164 KB Output is correct
8 Correct 1 ms 3416 KB Output is correct
9 Correct 2 ms 3420 KB Output is correct
10 Correct 1 ms 3164 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 3164 KB Output is correct
14 Correct 8 ms 9564 KB Output is correct
15 Correct 3 ms 5976 KB Output is correct
16 Correct 5 ms 6492 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 10 ms 10684 KB Output is correct
19 Correct 8 ms 10256 KB Output is correct
20 Correct 9 ms 10332 KB Output is correct
21 Correct 10 ms 10588 KB Output is correct
22 Correct 8 ms 10332 KB Output is correct
23 Correct 8 ms 10440 KB Output is correct
24 Correct 10 ms 10588 KB Output is correct
25 Correct 8 ms 10332 KB Output is correct
26 Correct 8 ms 10284 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 3420 KB Output is correct
6 Correct 1 ms 3420 KB Output is correct
7 Correct 1 ms 3164 KB Output is correct
8 Correct 1 ms 3416 KB Output is correct
9 Correct 2 ms 3420 KB Output is correct
10 Correct 1 ms 3164 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 3164 KB Output is correct
14 Correct 8 ms 9564 KB Output is correct
15 Correct 3 ms 5976 KB Output is correct
16 Correct 5 ms 6492 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 10 ms 10684 KB Output is correct
19 Correct 8 ms 10256 KB Output is correct
20 Correct 9 ms 10332 KB Output is correct
21 Correct 10 ms 10588 KB Output is correct
22 Correct 8 ms 10332 KB Output is correct
23 Correct 8 ms 10440 KB Output is correct
24 Correct 10 ms 10588 KB Output is correct
25 Correct 8 ms 10332 KB Output is correct
26 Correct 8 ms 10284 KB Output is correct
27 Correct 300 ms 158876 KB Output is correct
28 Correct 12 ms 27740 KB Output is correct
29 Correct 17 ms 15148 KB Output is correct
30 Correct 1 ms 2908 KB Output is correct
31 Correct 215 ms 132364 KB Output is correct
32 Correct 271 ms 159316 KB Output is correct
33 Correct 281 ms 158756 KB Output is correct
34 Correct 256 ms 152688 KB Output is correct
35 Correct 295 ms 159312 KB Output is correct
36 Correct 276 ms 158744 KB Output is correct
37 Correct 321 ms 159400 KB Output is correct
38 Correct 187 ms 131668 KB Output is correct
39 Correct 193 ms 132012 KB Output is correct