oj.uz

답안 #43148

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
43148 2018-03-09T14:40:30 Z cheater2k Bomb (IZhO17_bomb) C++14
63 / 100
 1000 ms 131072 KB 
/*
5 5 
00111
00111
11111
11110
11100
*/
#include <bits/stdc++.h>
using namespace std;

#define left __left
#define right __right

const int N = 2505;
const int dx[] = {0, 0, -1, +1};
const int dy[] = {-1, +1, 0, 0};

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];
bool vis[N][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) {
		int c = 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 - r + 1; --k) {
					if (left[i][j] == 1) c = min(c, right[k][j]);
					if (right[i][j] == 1) c = min(c, left[k][j]);
				}
			} else if (up[i][j] == 1) {
				for (int k = i; k <= i + r - 1; ++k) {
					if (left[i][j] == 1) c = min(c, right[k][j]);
					if (right[i][j] == 1) c = min(c, left[k][j]);
				}
			}
		}

		res = max(res, r * c);
	}

	cout << res << endl;
}

Subtask #1
63.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 740 KB Output is correct
3 Correct 42 ms 46768 KB Output is correct
4 Correct 45 ms 46848 KB Output is correct
5 Correct 2 ms 46848 KB Output is correct
6 Correct 2 ms 46848 KB Output is correct
7 Correct 2 ms 46848 KB Output is correct
8 Correct 2 ms 46848 KB Output is correct
9 Correct 2 ms 46848 KB Output is correct
10 Correct 2 ms 46848 KB Output is correct
11 Correct 2 ms 46848 KB Output is correct
12 Correct 2 ms 46848 KB Output is correct
13 Correct 2 ms 46848 KB Output is correct
14 Correct 2 ms 46848 KB Output is correct
15 Correct 2 ms 46848 KB Output is correct
16 Correct 2 ms 46848 KB Output is correct
17 Correct 2 ms 46848 KB Output is correct
18 Correct 3 ms 46848 KB Output is correct
19 Correct 3 ms 46848 KB Output is correct
20 Correct 3 ms 46848 KB Output is correct
21 Correct 3 ms 46848 KB Output is correct
22 Correct 3 ms 46848 KB Output is correct
23 Correct 3 ms 46848 KB Output is correct
24 Correct 3 ms 46848 KB Output is correct
25 Correct 4 ms 46848 KB Output is correct
26 Correct 4 ms 46848 KB Output is correct
27 Correct 11 ms 46848 KB Output is correct
28 Correct 10 ms 46848 KB Output is correct
29 Correct 37 ms 46848 KB Output is correct
30 Correct 46 ms 46848 KB Output is correct
31 Correct 24 ms 46848 KB Output is correct
32 Correct 32 ms 46848 KB Output is correct
33 Correct 56 ms 46848 KB Output is correct
34 Correct 9 ms 46848 KB Output is correct
35 Correct 17 ms 46848 KB Output is correct
36 Correct 38 ms 46848 KB Output is correct
37 Correct 2 ms 46848 KB Output is correct
38 Execution timed out 1065 ms 112680 KB Time limit exceeded
39 Correct 2 ms 112680 KB Output is correct
40 Incorrect 710 ms 112680 KB Output isn't correct
41 Correct 2 ms 112680 KB Output is correct
42 Correct 5 ms 112680 KB Output is correct
43 Execution timed out 1071 ms 119528 KB Time limit exceeded
44 Correct 116 ms 119528 KB Output is correct
45 Execution timed out 1073 ms 125892 KB Time limit exceeded
46 Correct 931 ms 131072 KB Output is correct
47 Execution timed out 1082 ms 131072 KB Time limit exceeded
48 Correct 871 ms 131072 KB Output is correct
49 Correct 522 ms 131072 KB Output is correct
50 Correct 896 ms 131072 KB Output is correct
51 Correct 878 ms 131072 KB Output is correct
52 Correct 948 ms 131072 KB Output is correct
53 Correct 907 ms 131072 KB Output is correct
54 Correct 874 ms 131072 KB Output is correct
55 Correct 829 ms 131072 KB Output is correct
56 Execution timed out 1079 ms 131072 KB Time limit exceeded
57 Correct 731 ms 131072 KB Output is correct
58 Correct 827 ms 131072 KB Output is correct
59 Correct 791 ms 131072 KB Output is correct
60 Correct 731 ms 131072 KB Output is correct
61 Correct 679 ms 131072 KB Output is correct
62 Execution timed out 1069 ms 131072 KB Time limit exceeded
63 Execution timed out 1071 ms 131072 KB Time limit exceeded
64 Execution timed out 1069 ms 131072 KB Time limit exceeded
65 Correct 932 ms 131072 KB Output is correct
66 Correct 530 ms 131072 KB Output is correct
67 Correct 839 ms 131072 KB Output is correct
68 Correct 917 ms 131072 KB Output is correct
69 Correct 717 ms 131072 KB Output is correct
70 Execution timed out 1063 ms 131072 KB Time limit exceeded
71 Execution timed out 1071 ms 131072 KB Time limit exceeded
72 Execution timed out 1070 ms 131072 KB Time limit exceeded
73 Execution timed out 1077 ms 131072 KB Time limit exceeded
74 Execution timed out 1065 ms 131072 KB Time limit exceeded
75 Execution timed out 1060 ms 131072 KB Time limit exceeded
76 Execution timed out 1067 ms 131072 KB Time limit exceeded
77 Execution timed out 1088 ms 131072 KB Time limit exceeded
78 Execution timed out 1075 ms 131072 KB Time limit exceeded
79 Execution timed out 1079 ms 131072 KB Time limit exceeded
80 Execution timed out 1073 ms 131072 KB Time limit exceeded
81 Execution timed out 1075 ms 131072 KB Time limit exceeded
82 Execution timed out 1078 ms 131072 KB Time limit exceeded
83 Execution timed out 1076 ms 131072 KB Time limit exceeded
84 Correct 503 ms 131072 KB Output is correct
85 Execution timed out 1077 ms 131072 KB Time limit exceeded
86 Correct 876 ms 131072 KB Output is correct
87 Execution timed out 1069 ms 131072 KB Time limit exceeded
88 Execution timed out 1078 ms 131072 KB Time limit exceeded
89 Execution timed out 1063 ms 131072 KB Time limit exceeded
90 Execution timed out 1086 ms 131072 KB Time limit exceeded
91 Execution timed out 1078 ms 131072 KB Time limit exceeded
92 Execution timed out 1078 ms 131072 KB Time limit exceeded
93 Execution timed out 1081 ms 131072 KB Time limit exceeded
94 Execution timed out 1070 ms 131072 KB Time limit exceeded
95 Execution timed out 1084 ms 131072 KB Time limit exceeded
96 Execution timed out 1064 ms 131072 KB Time limit exceeded
97 Correct 833 ms 131072 KB Output is correct
98 Execution timed out 1064 ms 131072 KB Time limit exceeded
99 Execution timed out 1078 ms 131072 KB Time limit exceeded
100 Execution timed out 1077 ms 131072 KB Time limit exceeded