답안 #990080

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
990080	2024-05-29T13:52:43 Z	coftochka	Bitaro the Brave (JOI19_ho_t1)	C++17	20 / 100	9 ms	15196 KB

joi2019_ho_t1

#include <iostream>
#include <cstring>

using namespace std;

const int N = 3030;
int O[N][N];
int I[N][N];
string s[N];
int n, m;


void input(){
    cin >> n >> m;
    for (int i = 0; i < n; ++i){
        cin >> s[i];
    }
    
}

void preprocess(){
    for (int i = 0; i < n; ++i){
        O[i][m] = 0;
        for (int j = m - 1; j >= 0; --j){
            O[i][j] = O[i][j + 1];
            if (s[i][j] == 'O'){
                ++O[i][j];
            }
        }
    }
    for (int j = 0; j < m; ++j){
        I[n][j] = 0;
        for (int i = n - 1; i >= 0; --i){
            I[i][j] = I[i + 1][j];
            if (s[i][j] == 'I'){
                ++I[i][j];
            }
        }
    }
}

int solve(){
    long long ans = 0;
    for (int i = 0; i < n; ++i){
        for (int j = 0; j < m; ++j){
            if (s[i][j] == 'J'){
                ans += O[i][j] * I[i][j];
            }
        }
    }
    return ans;
}

int main(){
    input();
    preprocess();
    cout << solve();
}

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	6748 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	1 ms	4700 KB	Output is correct
8	Correct	1 ms	6748 KB	Output is correct
9	Correct	1 ms	6492 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	6748 KB	Output is correct
12	Correct	1 ms	6748 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct

Subtask #2

0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	6748 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	1 ms	4700 KB	Output is correct
8	Correct	1 ms	6748 KB	Output is correct
9	Correct	1 ms	6492 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	6748 KB	Output is correct
12	Correct	1 ms	6748 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	8 ms	15196 KB	Output is correct
15	Correct	1 ms	12632 KB	Output is correct
16	Correct	3 ms	9032 KB	Output is correct
17	Correct	1 ms	4700 KB	Output is correct
18	Correct	9 ms	15192 KB	Output is correct
19	Correct	6 ms	15196 KB	Output is correct
20	Incorrect	7 ms	15196 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Subtask #3

0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	6748 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	1 ms	4700 KB	Output is correct
8	Correct	1 ms	6748 KB	Output is correct
9	Correct	1 ms	6492 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	6748 KB	Output is correct
12	Correct	1 ms	6748 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	8 ms	15196 KB	Output is correct
15	Correct	1 ms	12632 KB	Output is correct
16	Correct	3 ms	9032 KB	Output is correct
17	Correct	1 ms	4700 KB	Output is correct
18	Correct	9 ms	15192 KB	Output is correct
19	Correct	6 ms	15196 KB	Output is correct
20	Incorrect	7 ms	15196 KB	Output isn't correct
21	Halted	0 ms	0 KB	-