oj.uz

Submission #153282

# Submission time Handle Problem Language Result Execution time Memory
153282 2019-09-13T07:47:49 Z mhy908 Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 275 ms 159384 KB 
#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define llinf 8987654321987654321
#define inf 1987654321
using namespace std;
typedef long long LL;
typedef pair<LL, LL> pll;
int n, m;
char arr[3010][3010];
LL dp1[3010][3010], dp2[3010][3010];
int main()
{
    scanf("%d %d", &n, &m);
    for(int i=1; i<=n; i++){
        scanf("%s", arr[i]+1);
    }
    for(int i=n; i>=1; i--){
        for(int j=1; j<=m; j++){
            if(arr[i][j]=='I')dp1[i][j]=dp1[i+1][j]+1;
            else dp1[i][j]=dp1[i+1][j];
        }
    }
    for(int i=1; i<=n; i++){
        for(int j=1; j<=m; j++){
            if(arr[i][j]=='J')dp2[i][j]=dp2[i][j-1]+dp1[i][j];
            else dp2[i][j]=dp2[i][j-1];
        }
    }
    LL ans=0;
    for(int i=1; i<=n; i++){
        for(int j=1; j<=m; j++){
            if(arr[i][j]=='O')ans+=dp2[i][j];
        }
    }
    printf("%lld", ans);
}

Compilation message

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:15:10: 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:17:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s", arr[i]+1);
         ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 4 ms 1656 KB Output is correct
6 Correct 3 ms 1528 KB Output is correct
7 Correct 4 ms 1528 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 3 ms 1528 KB Output is correct
10 Correct 3 ms 1400 KB Output is correct
11 Correct 4 ms 1656 KB Output is correct
12 Correct 3 ms 1528 KB Output is correct
13 Correct 3 ms 1528 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 4 ms 1656 KB Output is correct
6 Correct 3 ms 1528 KB Output is correct
7 Correct 4 ms 1528 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 3 ms 1528 KB Output is correct
10 Correct 3 ms 1400 KB Output is correct
11 Correct 4 ms 1656 KB Output is correct
12 Correct 3 ms 1528 KB Output is correct
13 Correct 3 ms 1528 KB Output is correct
14 Correct 14 ms 9208 KB Output is correct
15 Correct 6 ms 5112 KB Output is correct
16 Correct 7 ms 5368 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 15 ms 9976 KB Output is correct
19 Correct 12 ms 9848 KB Output is correct
20 Correct 12 ms 9852 KB Output is correct
21 Correct 15 ms 9976 KB Output is correct
22 Correct 7 ms 9872 KB Output is correct
23 Correct 12 ms 9848 KB Output is correct
24 Correct 18 ms 9976 KB Output is correct
25 Correct 12 ms 9848 KB Output is correct
26 Correct 12 ms 9852 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 4 ms 1656 KB Output is correct
6 Correct 3 ms 1528 KB Output is correct
7 Correct 4 ms 1528 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 3 ms 1528 KB Output is correct
10 Correct 3 ms 1400 KB Output is correct
11 Correct 4 ms 1656 KB Output is correct
12 Correct 3 ms 1528 KB Output is correct
13 Correct 3 ms 1528 KB Output is correct
14 Correct 14 ms 9208 KB Output is correct
15 Correct 6 ms 5112 KB Output is correct
16 Correct 7 ms 5368 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 15 ms 9976 KB Output is correct
19 Correct 12 ms 9848 KB Output is correct
20 Correct 12 ms 9852 KB Output is correct
21 Correct 15 ms 9976 KB Output is correct
22 Correct 7 ms 9872 KB Output is correct
23 Correct 12 ms 9848 KB Output is correct
24 Correct 18 ms 9976 KB Output is correct
25 Correct 12 ms 9848 KB Output is correct
26 Correct 12 ms 9852 KB Output is correct
27 Correct 270 ms 158824 KB Output is correct
28 Correct 27 ms 26388 KB Output is correct
29 Correct 17 ms 13944 KB Output is correct
30 Correct 3 ms 888 KB Output is correct
31 Correct 225 ms 131620 KB Output is correct
32 Correct 203 ms 159352 KB Output is correct
33 Correct 190 ms 158844 KB Output is correct
34 Correct 246 ms 152548 KB Output is correct
35 Correct 194 ms 159224 KB Output is correct
36 Correct 199 ms 158824 KB Output is correct
37 Correct 275 ms 159384 KB Output is correct
38 Correct 169 ms 130936 KB Output is correct
39 Correct 165 ms 131064 KB Output is correct