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Submission #394594

# Submission time Handle Problem Language Result Execution time Memory
394594 2021-04-27T02:52:47 Z benedict0724 Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 420 ms 114884 KB 
#include <iostream>

using namespace std;

int v[3002][3002];
int dp[3002][3002];
int dp2[3002][3002];

int main()
{
    ios::sync_with_stdio(false); cin.tie(NULL);
    int H, W; cin >> H >> W;
    for(int i=1;i<=H;i++)
    {
        string s; cin >> s;
        for(int j=1;j<=W;j++)
        {
            if(s[j-1] == 'J') v[i][j] = 1;
            if(s[j-1] == 'O') v[i][j] = 2;
            if(s[j-1] == 'I') v[i][j] = 3;
        }
    }

    for(int i=1;i<=H;i++)
    {
        for(int j=W;j>=1;j--)
        {
            dp[i][j] = dp[i][j+1];
            if(v[i][j] == 2) dp[i][j]++;
        }
    }

    for(int j=1;j<=W;j++)
    {
        for(int i=H;i>=1;i--)
        {
            dp2[i][j] = dp2[i+1][j];
            if(v[i][j] == 3) dp2[i][j]++;
        }
    }

    long long int ans = 0;
    for(int i=1;i<=H;i++)
    {
        for(int j=1;j<=W;j++)
        {
            if(v[i][j] == 1) ans += dp[i][j] * dp2[i][j];
        }
    }

    cout << ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 456 KB Output is correct
5 Correct 2 ms 1612 KB Output is correct
6 Correct 1 ms 1612 KB Output is correct
7 Correct 1 ms 1484 KB Output is correct
8 Correct 2 ms 1612 KB Output is correct
9 Correct 2 ms 1612 KB Output is correct
10 Correct 1 ms 1484 KB Output is correct
11 Correct 2 ms 1612 KB Output is correct
12 Correct 1 ms 1612 KB Output is correct
13 Correct 1 ms 1484 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 456 KB Output is correct
5 Correct 2 ms 1612 KB Output is correct
6 Correct 1 ms 1612 KB Output is correct
7 Correct 1 ms 1484 KB Output is correct
8 Correct 2 ms 1612 KB Output is correct
9 Correct 2 ms 1612 KB Output is correct
10 Correct 1 ms 1484 KB Output is correct
11 Correct 2 ms 1612 KB Output is correct
12 Correct 1 ms 1612 KB Output is correct
13 Correct 1 ms 1484 KB Output is correct
14 Correct 10 ms 8784 KB Output is correct
15 Correct 3 ms 5452 KB Output is correct
16 Correct 5 ms 5068 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 12 ms 9548 KB Output is correct
19 Correct 9 ms 9292 KB Output is correct
20 Correct 8 ms 9292 KB Output is correct
21 Correct 14 ms 9548 KB Output is correct
22 Correct 11 ms 9404 KB Output is correct
23 Correct 8 ms 9292 KB Output is correct
24 Correct 12 ms 9548 KB Output is correct
25 Correct 8 ms 9420 KB Output is correct
26 Correct 8 ms 9300 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 456 KB Output is correct
5 Correct 2 ms 1612 KB Output is correct
6 Correct 1 ms 1612 KB Output is correct
7 Correct 1 ms 1484 KB Output is correct
8 Correct 2 ms 1612 KB Output is correct
9 Correct 2 ms 1612 KB Output is correct
10 Correct 1 ms 1484 KB Output is correct
11 Correct 2 ms 1612 KB Output is correct
12 Correct 1 ms 1612 KB Output is correct
13 Correct 1 ms 1484 KB Output is correct
14 Correct 10 ms 8784 KB Output is correct
15 Correct 3 ms 5452 KB Output is correct
16 Correct 5 ms 5068 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 12 ms 9548 KB Output is correct
19 Correct 9 ms 9292 KB Output is correct
20 Correct 8 ms 9292 KB Output is correct
21 Correct 14 ms 9548 KB Output is correct
22 Correct 11 ms 9404 KB Output is correct
23 Correct 8 ms 9292 KB Output is correct
24 Correct 12 ms 9548 KB Output is correct
25 Correct 8 ms 9420 KB Output is correct
26 Correct 8 ms 9300 KB Output is correct
27 Correct 409 ms 114320 KB Output is correct
28 Correct 17 ms 28748 KB Output is correct
29 Correct 13 ms 10120 KB Output is correct
30 Correct 2 ms 588 KB Output is correct
31 Correct 302 ms 94792 KB Output is correct
32 Correct 331 ms 114788 KB Output is correct
33 Correct 312 ms 114460 KB Output is correct
34 Correct 337 ms 109660 KB Output is correct
35 Correct 331 ms 114884 KB Output is correct
36 Correct 302 ms 114500 KB Output is correct
37 Correct 420 ms 114864 KB Output is correct
38 Correct 221 ms 94484 KB Output is correct
39 Correct 221 ms 94160 KB Output is correct