답안 #872946

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
872946	2023-11-14T07:05:38 Z	20163070	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	321 ms	159400 KB

joi2019_ho_t1

#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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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