답안 #204495

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
204495	2020-02-26T05:30:14 Z	T0p_	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	257 ms	160520 KB

joi2019_ho_t1

#include<bits/stdc++.h>
using namespace std;

char t[3030][3030];
long long dp[2][3030][3030];

int main()
{
	int n, m;
	scanf(" %d %d",&n,&m);
	for(int i=1 ; i<=n ; i++)
		scanf(" %s",t[i]+1);
	for(int i=n ; i>=1 ; i--)
	{
		for(int j=m ; j>=1 ; j--)
		{
			if(t[i][j] == 'O') dp[0][i][j]++;
			if(t[i][j] == 'I') dp[1][i][j]++;
			dp[0][i][j] += dp[0][i][j+1];
			dp[1][i][j] += dp[1][i+1][j];
		}
	}
	long long ans = 0;
	for(int i=1 ; i<=n ; i++)
		for(int j=1 ; j<=m ; j++)
			if(t[i][j] == 'J') ans += dp[0][i][j] * dp[1][i][j];
	printf("%lld\n",ans);
	return 0;
}

Compilation message

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf(" %d %d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~~~
joi2019_ho_t1.cpp:12:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %s",t[i]+1);
   ~~~~~^~~~~~~~~~~~~~

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	504 KB	Output is correct
5	Correct	5 ms	1656 KB	Output is correct
6	Correct	6 ms	1528 KB	Output is correct
7	Correct	5 ms	1400 KB	Output is correct
8	Correct	6 ms	1528 KB	Output is correct
9	Correct	5 ms	1528 KB	Output is correct
10	Correct	6 ms	1400 KB	Output is correct
11	Correct	6 ms	1528 KB	Output is correct
12	Correct	6 ms	1528 KB	Output is correct
13	Correct	6 ms	1400 KB	Output is correct

Subtask #2

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	504 KB	Output is correct
5	Correct	5 ms	1656 KB	Output is correct
6	Correct	6 ms	1528 KB	Output is correct
7	Correct	5 ms	1400 KB	Output is correct
8	Correct	6 ms	1528 KB	Output is correct
9	Correct	5 ms	1528 KB	Output is correct
10	Correct	6 ms	1400 KB	Output is correct
11	Correct	6 ms	1528 KB	Output is correct
12	Correct	6 ms	1528 KB	Output is correct
13	Correct	6 ms	1400 KB	Output is correct
14	Correct	14 ms	9080 KB	Output is correct
15	Correct	10 ms	5016 KB	Output is correct
16	Correct	9 ms	5496 KB	Output is correct
17	Correct	5 ms	504 KB	Output is correct
18	Correct	16 ms	9976 KB	Output is correct
19	Correct	13 ms	9848 KB	Output is correct
20	Correct	13 ms	9848 KB	Output is correct
21	Correct	15 ms	9976 KB	Output is correct
22	Correct	13 ms	9848 KB	Output is correct
23	Correct	13 ms	9848 KB	Output is correct
24	Correct	16 ms	9980 KB	Output is correct
25	Correct	13 ms	9848 KB	Output is correct
26	Correct	13 ms	9848 KB	Output is correct

Subtask #3

50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	504 KB	Output is correct
5	Correct	5 ms	1656 KB	Output is correct
6	Correct	6 ms	1528 KB	Output is correct
7	Correct	5 ms	1400 KB	Output is correct
8	Correct	6 ms	1528 KB	Output is correct
9	Correct	5 ms	1528 KB	Output is correct
10	Correct	6 ms	1400 KB	Output is correct
11	Correct	6 ms	1528 KB	Output is correct
12	Correct	6 ms	1528 KB	Output is correct
13	Correct	6 ms	1400 KB	Output is correct
14	Correct	14 ms	9080 KB	Output is correct
15	Correct	10 ms	5016 KB	Output is correct
16	Correct	9 ms	5496 KB	Output is correct
17	Correct	5 ms	504 KB	Output is correct
18	Correct	16 ms	9976 KB	Output is correct
19	Correct	13 ms	9848 KB	Output is correct
20	Correct	13 ms	9848 KB	Output is correct
21	Correct	15 ms	9976 KB	Output is correct
22	Correct	13 ms	9848 KB	Output is correct
23	Correct	13 ms	9848 KB	Output is correct
24	Correct	16 ms	9980 KB	Output is correct
25	Correct	13 ms	9848 KB	Output is correct
26	Correct	13 ms	9848 KB	Output is correct
27	Correct	250 ms	159864 KB	Output is correct
28	Correct	21 ms	26360 KB	Output is correct
29	Correct	19 ms	13944 KB	Output is correct
30	Correct	6 ms	760 KB	Output is correct
31	Correct	188 ms	131832 KB	Output is correct
32	Correct	180 ms	160248 KB	Output is correct
33	Correct	174 ms	159864 KB	Output is correct
34	Correct	218 ms	152696 KB	Output is correct
35	Correct	180 ms	160248 KB	Output is correct
36	Correct	172 ms	159864 KB	Output is correct
37	Correct	257 ms	160520 KB	Output is correct
38	Correct	138 ms	130936 KB	Output is correct
39	Correct	134 ms	131192 KB	Output is correct