답안 #43149 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
43149	2018-03-09T14:47:22 Z	cheater2k	Bomb (IZhO17_bomb)	C++14	93 / 100	513 ms	131072 KB

bomb

/*
5 5 
00111
00111
11111
11110
11100
*/
#include <bits/stdc++.h>
using namespace std;

#define left __left
#define right __right

const int N = 2505;

int n, m, nrow, ncol;
int left[N][N];
int right[N][N];
int up[N][N];
int down[N][N];
char a[N][N];
int c[N];

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n >> m;
	for (int i = 1; i <= n; ++i) {
		for (int j = 1; j <= m; ++j) {
			cin >> a[i][j];
		}
	}

	for (int i = 1; i <= n; ++i) {
		for (int j = 1; j <= m; ++j) left[i][j] = a[i][j] == '1' ? left[i][j - 1] + 1 : 0;
		for (int j = m; j >= 1; --j) right[i][j] = a[i][j] == '1' ? right[i][j + 1] + 1 : 0;
	}

	for (int j = 1; j <= m; ++j) {
		for (int i = 1; i <= n; ++i) up[i][j] = a[i][j] == '1' ? up[i - 1][j] + 1 : 0;
		for (int i = n; i >= 1; --i) down[i][j] = a[i][j] == '1' ? down[i + 1][j] + 1 : 0;
	}

	nrow = n, ncol = m;
	for (int i = 1; i <= n; ++i) {
		for (int j = 1; j <= m; ++j) if (a[i][j] == '1') {
			nrow = min(nrow, up[i][j] + down[i][j] - 1);
			ncol = min(ncol, left[i][j] + right[i][j] - 1);
		}
	}

	int res = 0;
	for (int r = 1; r <= nrow; ++r) c[r] = ncol;

	for (int i = 1; i <= n; ++i) for (int j = 1; j <= m; ++j) {
		if (a[i][j] != '1') continue;

		if (down[i][j] == 1) {
			for (int k = i; k >= i - nrow + 1; --k) {
				if (left[i][j] == 1) c[i - k + 1] = min(c[i - k + 1], right[k][j]);
				if (right[i][j] == 1) c[i - k + 1] = min(c[i - k + 1], left[k][j]);
			}
		} else if (up[i][j] == 1) {
			for (int k = i; k <= i + nrow - 1; ++k) {
				if (left[i][j] == 1) c[k - i + 1] = min(c[k - i + 1], right[k][j]);
				if (right[i][j] == 1) c[k - i + 1] = min(c[k - i + 1], left[k][j]);
			}
		}
	}

	for (int r = 1; r <= nrow; ++r) res = max(res, r * c[r]);
	cout << res << endl;
}

Subtask #1
93.0 / 100.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	376 KB	Output is correct
2	Correct	2 ms	740 KB	Output is correct
3	Correct	38 ms	46920 KB	Output is correct
4	Correct	39 ms	46920 KB	Output is correct
5	Correct	2 ms	46920 KB	Output is correct
6	Correct	2 ms	46920 KB	Output is correct
7	Correct	2 ms	46920 KB	Output is correct
8	Correct	2 ms	46920 KB	Output is correct
9	Correct	2 ms	46920 KB	Output is correct
10	Correct	2 ms	46920 KB	Output is correct
11	Correct	2 ms	46920 KB	Output is correct
12	Correct	2 ms	46920 KB	Output is correct
13	Correct	2 ms	46920 KB	Output is correct
14	Correct	2 ms	46920 KB	Output is correct
15	Correct	2 ms	46920 KB	Output is correct
16	Correct	2 ms	46920 KB	Output is correct
17	Correct	2 ms	46920 KB	Output is correct
18	Correct	3 ms	46920 KB	Output is correct
19	Correct	3 ms	46920 KB	Output is correct
20	Correct	3 ms	46920 KB	Output is correct
21	Correct	2 ms	46920 KB	Output is correct
22	Correct	3 ms	46920 KB	Output is correct
23	Correct	3 ms	46920 KB	Output is correct
24	Correct	3 ms	46920 KB	Output is correct
25	Correct	3 ms	46920 KB	Output is correct
26	Correct	3 ms	46920 KB	Output is correct
27	Correct	10 ms	46920 KB	Output is correct
28	Correct	9 ms	46920 KB	Output is correct
29	Incorrect	12 ms	46920 KB	Output isn't correct
30	Correct	14 ms	46920 KB	Output is correct
31	Correct	11 ms	46920 KB	Output is correct
32	Correct	12 ms	46920 KB	Output is correct
33	Correct	15 ms	46920 KB	Output is correct
34	Correct	8 ms	46920 KB	Output is correct
35	Correct	14 ms	46920 KB	Output is correct
36	Correct	16 ms	46920 KB	Output is correct
37	Correct	2 ms	46920 KB	Output is correct
38	Correct	466 ms	112668 KB	Output is correct
39	Correct	2 ms	112668 KB	Output is correct
40	Incorrect	55 ms	112668 KB	Output isn't correct
41	Correct	2 ms	112668 KB	Output is correct
42	Correct	3 ms	112668 KB	Output is correct
43	Correct	468 ms	119628 KB	Output is correct
44	Correct	16 ms	119628 KB	Output is correct
45	Correct	500 ms	125816 KB	Output is correct
46	Correct	513 ms	131072 KB	Output is correct
47	Correct	466 ms	131072 KB	Output is correct
48	Incorrect	452 ms	131072 KB	Output isn't correct
49	Correct	459 ms	131072 KB	Output is correct
50	Incorrect	507 ms	131072 KB	Output isn't correct
51	Incorrect	464 ms	131072 KB	Output isn't correct
52	Correct	449 ms	131072 KB	Output is correct
53	Correct	447 ms	131072 KB	Output is correct
54	Correct	429 ms	131072 KB	Output is correct
55	Correct	420 ms	131072 KB	Output is correct
56	Correct	492 ms	131072 KB	Output is correct
57	Correct	440 ms	131072 KB	Output is correct
58	Correct	448 ms	131072 KB	Output is correct
59	Correct	429 ms	131072 KB	Output is correct
60	Correct	439 ms	131072 KB	Output is correct
61	Correct	445 ms	131072 KB	Output is correct
62	Correct	495 ms	131072 KB	Output is correct
63	Correct	486 ms	131072 KB	Output is correct
64	Correct	421 ms	131072 KB	Output is correct
65	Correct	447 ms	131072 KB	Output is correct
66	Correct	442 ms	131072 KB	Output is correct
67	Incorrect	445 ms	131072 KB	Output isn't correct
68	Incorrect	463 ms	131072 KB	Output isn't correct
69	Correct	445 ms	131072 KB	Output is correct
70	Correct	287 ms	131072 KB	Output is correct
71	Correct	449 ms	131072 KB	Output is correct
72	Correct	456 ms	131072 KB	Output is correct
73	Correct	421 ms	131072 KB	Output is correct
74	Correct	430 ms	131072 KB	Output is correct
75	Correct	439 ms	131072 KB	Output is correct
76	Correct	434 ms	131072 KB	Output is correct
77	Correct	509 ms	131072 KB	Output is correct
78	Correct	427 ms	131072 KB	Output is correct
79	Correct	410 ms	131072 KB	Output is correct
80	Correct	430 ms	131072 KB	Output is correct
81	Correct	402 ms	131072 KB	Output is correct
82	Correct	440 ms	131072 KB	Output is correct
83	Correct	419 ms	131072 KB	Output is correct
84	Correct	431 ms	131072 KB	Output is correct
85	Correct	421 ms	131072 KB	Output is correct
86	Correct	464 ms	131072 KB	Output is correct
87	Correct	424 ms	131072 KB	Output is correct
88	Correct	430 ms	131072 KB	Output is correct
89	Correct	449 ms	131072 KB	Output is correct
90	Correct	281 ms	131072 KB	Output is correct
91	Correct	437 ms	131072 KB	Output is correct
92	Correct	435 ms	131072 KB	Output is correct
93	Correct	448 ms	131072 KB	Output is correct
94	Correct	445 ms	131072 KB	Output is correct
95	Correct	436 ms	131072 KB	Output is correct
96	Correct	427 ms	131072 KB	Output is correct
97	Correct	447 ms	131072 KB	Output is correct
98	Correct	422 ms	131072 KB	Output is correct
99	Correct	429 ms	131072 KB	Output is correct
100	Correct	448 ms	131072 KB	Output is correct

답안 #43149

Compilation message

Subtask #1 93.0 / 100.0

Subtask #1
93.0 / 100.0