oj.uz

Submission #154200

# Submission time Handle Problem Language Result Execution time Memory
154200 2019-09-18T22:01:49 Z ivandasfs Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 173 ms 88460 KB 
#include <iostream>
#include <cstdio>

using namespace std;

char a[3005][3005];

int red[3005][3005];
int stu[3005][3005];

int main() {
	int n,m;
	scanf("%d%d", &n, &m);
	for (int i=0 ; i<n ; i++) {
		scanf("%s", a[i]);
	}
	long long sol = 0;
	for (int i=n-1 ; i>=0 ; i--) {
		for (int j=m-1 ; j>=0 ; j--) {
			red[i][j] = red[i][j+1] + (a[i][j] == 'O');
			stu[i][j] = stu[i+1][j] + (a[i][j] == 'I');
			if (a[i][j] == 'J') sol += red[i][j] * stu[i][j];
		}
	}
	printf("%lld\n", sol);
	return 0;
}

Compilation message

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:13:7: 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:15:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s", a[i]);
   ~~~~~^~~~~~~~~~~~

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 2 ms 376 KB Output is correct
5 Correct 4 ms 1528 KB Output is correct
6 Correct 4 ms 1528 KB Output is correct
7 Correct 3 ms 1400 KB Output is correct
8 Correct 4 ms 1528 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 1532 KB Output is correct
12 Correct 4 ms 1528 KB Output is correct
13 Correct 4 ms 1400 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 2 ms 376 KB Output is correct
5 Correct 4 ms 1528 KB Output is correct
6 Correct 4 ms 1528 KB Output is correct
7 Correct 3 ms 1400 KB Output is correct
8 Correct 4 ms 1528 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 1532 KB Output is correct
12 Correct 4 ms 1528 KB Output is correct
13 Correct 4 ms 1400 KB Output is correct
14 Correct 10 ms 7544 KB Output is correct
15 Correct 7 ms 5112 KB Output is correct
16 Correct 7 ms 4348 KB Output is correct
17 Correct 3 ms 504 KB Output is correct
18 Correct 20 ms 7944 KB Output is correct
19 Correct 10 ms 7928 KB Output is correct
20 Correct 12 ms 7848 KB Output is correct
21 Correct 11 ms 7928 KB Output is correct
22 Correct 10 ms 7932 KB Output is correct
23 Correct 10 ms 7800 KB Output is correct
24 Correct 11 ms 7932 KB Output is correct
25 Correct 13 ms 7928 KB Output is correct
26 Correct 11 ms 7800 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 2 ms 376 KB Output is correct
5 Correct 4 ms 1528 KB Output is correct
6 Correct 4 ms 1528 KB Output is correct
7 Correct 3 ms 1400 KB Output is correct
8 Correct 4 ms 1528 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 1532 KB Output is correct
12 Correct 4 ms 1528 KB Output is correct
13 Correct 4 ms 1400 KB Output is correct
14 Correct 10 ms 7544 KB Output is correct
15 Correct 7 ms 5112 KB Output is correct
16 Correct 7 ms 4348 KB Output is correct
17 Correct 3 ms 504 KB Output is correct
18 Correct 20 ms 7944 KB Output is correct
19 Correct 10 ms 7928 KB Output is correct
20 Correct 12 ms 7848 KB Output is correct
21 Correct 11 ms 7928 KB Output is correct
22 Correct 10 ms 7932 KB Output is correct
23 Correct 10 ms 7800 KB Output is correct
24 Correct 11 ms 7932 KB Output is correct
25 Correct 13 ms 7928 KB Output is correct
26 Correct 11 ms 7800 KB Output is correct
27 Correct 136 ms 88028 KB Output is correct
28 Correct 28 ms 25988 KB Output is correct
29 Correct 12 ms 7800 KB Output is correct
30 Correct 3 ms 632 KB Output is correct
31 Correct 108 ms 72608 KB Output is correct
32 Correct 123 ms 88388 KB Output is correct
33 Correct 130 ms 88156 KB Output is correct
34 Correct 139 ms 84216 KB Output is correct
35 Correct 118 ms 88460 KB Output is correct
36 Correct 120 ms 88244 KB Output is correct
37 Correct 173 ms 88440 KB Output is correct
38 Correct 91 ms 72588 KB Output is correct
39 Correct 91 ms 72312 KB Output is correct