답안 #524025

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
524025	2022-02-08T14:32:18 Z	boykut	Bomb (IZhO17_bomb)	C++14	21 / 100	1000 ms	55044 KB

bomb

#include <bits/stdc++.h>

using namespace std;

const int N = 2500;
int arr[N][N];
int pref[N][N];

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);

	int n, m;
	cin >> n >> m;
	if (n * n * n * m * m * m > 1e8) return 0;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			char x; cin >> x;
			arr[i][j] = x - '0';
			pref[i][j] = x - '0';
			pref[i][j] += (i ? pref[i - 1][j] : 0);
			pref[i][j] += (j ? pref[i][j - 1] : 0);
			pref[i][j] -= (i && j ? pref[i - 1][j - 1] : 0);
		}
	}

	auto get = [&](int a, int b, int c, int d) ->int {
		int s = pref[c][d];
		s -= (a ? pref[a - 1][d] : 0);
		s -= (b ? pref[c][b - 1] : 0);
		s += (a && b ? pref[a - 1][b - 1] : 0);
		return s;
	};

	// brute force
	int ans = 0, Q = 2;
	for (int a = 1; a <= n; a++) {
		for (int b = 1; b <= m; b++) {
			for (int i = 0; i + a - 1 < n; i++) {
				for (int j = 0; j + b - 1 < m; j++) {
					int g = get(i, j, i + a - 1, j + b - 1);
					if (g == a * b) {
						for (int i2 = i; i2 <= i + a - 1; i2++) {
							for (int j2 = j; j2 <= j + b - 1; j2++)
								arr[i2][j2] = Q;
						}
					}
				}
			}
			int ok = 1;
			for (int i = 0; i < n; i++) {
				for (int j = 0; j < m; j++) {
					if (arr[i][j] != 0 && arr[i][j] != Q) ok = 0;
				}
			}
			if (ok) {
				ans = max(ans, a * b);
			}
			Q++;
		}
	}
	cout << ans << '\n';

	return 0;
}

Subtask #1

21.0 / 100.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	460 KB	Output is correct
3	Execution timed out	1093 ms	20404 KB	Time limit exceeded
4	Correct	350 ms	20388 KB	Output is correct
5	Correct	40 ms	332 KB	Output is correct
6	Incorrect	1 ms	204 KB	Output isn't correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	460 KB	Output is correct
9	Correct	1 ms	460 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	460 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	460 KB	Output is correct
17	Correct	52 ms	872 KB	Output is correct
18	Incorrect	1 ms	204 KB	Output isn't correct
19	Correct	85 ms	1128 KB	Output is correct
20	Incorrect	1 ms	324 KB	Output isn't correct
21	Incorrect	1 ms	204 KB	Output isn't correct
22	Incorrect	1 ms	204 KB	Output isn't correct
23	Correct	175 ms	1192 KB	Output is correct
24	Incorrect	1 ms	204 KB	Output isn't correct
25	Correct	232 ms	1192 KB	Output is correct
26	Execution timed out	1083 ms	1100 KB	Time limit exceeded
27	Incorrect	0 ms	332 KB	Output isn't correct
28	Incorrect	1 ms	332 KB	Output isn't correct
29	Incorrect	1 ms	332 KB	Output isn't correct
30	Execution timed out	1080 ms	5316 KB	Time limit exceeded
31	Execution timed out	1081 ms	4300 KB	Time limit exceeded
32	Execution timed out	1002 ms	4928 KB	Time limit exceeded
33	Incorrect	1 ms	332 KB	Output isn't correct
34	Execution timed out	1088 ms	3788 KB	Time limit exceeded
35	Incorrect	1 ms	332 KB	Output isn't correct
36	Incorrect	0 ms	332 KB	Output isn't correct
37	Correct	1 ms	460 KB	Output is correct
38	Execution timed out	1036 ms	52360 KB	Time limit exceeded
39	Correct	1 ms	460 KB	Output is correct
40	Incorrect	1 ms	332 KB	Output isn't correct
41	Correct	1 ms	444 KB	Output is correct
42	Execution timed out	1078 ms	1100 KB	Time limit exceeded
43	Execution timed out	1033 ms	52468 KB	Time limit exceeded
44	Incorrect	1 ms	332 KB	Output isn't correct
45	Execution timed out	1052 ms	52872 KB	Time limit exceeded
46	Execution timed out	1061 ms	53280 KB	Time limit exceeded
47	Execution timed out	1060 ms	53240 KB	Time limit exceeded
48	Execution timed out	1082 ms	53260 KB	Time limit exceeded
49	Execution timed out	1046 ms	53224 KB	Time limit exceeded
50	Execution timed out	1037 ms	53196 KB	Time limit exceeded
51	Execution timed out	1049 ms	53376 KB	Time limit exceeded
52	Execution timed out	1026 ms	53444 KB	Time limit exceeded
53	Execution timed out	1022 ms	53660 KB	Time limit exceeded
54	Execution timed out	1075 ms	53760 KB	Time limit exceeded
55	Execution timed out	1085 ms	53872 KB	Time limit exceeded
56	Execution timed out	1103 ms	54116 KB	Time limit exceeded
57	Execution timed out	1076 ms	54256 KB	Time limit exceeded
58	Execution timed out	1056 ms	54264 KB	Time limit exceeded
59	Execution timed out	1060 ms	54512 KB	Time limit exceeded
60	Execution timed out	1068 ms	54596 KB	Time limit exceeded
61	Execution timed out	1071 ms	54492 KB	Time limit exceeded
62	Execution timed out	1089 ms	54728 KB	Time limit exceeded
63	Execution timed out	1087 ms	54828 KB	Time limit exceeded
64	Execution timed out	1077 ms	54752 KB	Time limit exceeded
65	Execution timed out	1066 ms	54668 KB	Time limit exceeded
66	Execution timed out	1086 ms	54724 KB	Time limit exceeded
67	Execution timed out	1070 ms	54724 KB	Time limit exceeded
68	Execution timed out	1073 ms	54564 KB	Time limit exceeded
69	Execution timed out	1086 ms	54300 KB	Time limit exceeded
70	Execution timed out	1091 ms	43324 KB	Time limit exceeded
71	Execution timed out	1072 ms	53900 KB	Time limit exceeded
72	Execution timed out	1094 ms	53916 KB	Time limit exceeded
73	Execution timed out	1082 ms	53444 KB	Time limit exceeded
74	Execution timed out	1098 ms	53512 KB	Time limit exceeded
75	Execution timed out	1081 ms	53444 KB	Time limit exceeded
76	Execution timed out	1091 ms	52952 KB	Time limit exceeded
77	Execution timed out	1055 ms	52972 KB	Time limit exceeded
78	Execution timed out	1098 ms	52984 KB	Time limit exceeded
79	Execution timed out	1073 ms	52536 KB	Time limit exceeded
80	Execution timed out	1099 ms	52412 KB	Time limit exceeded
81	Execution timed out	1087 ms	52300 KB	Time limit exceeded
82	Execution timed out	1091 ms	51904 KB	Time limit exceeded
83	Execution timed out	1085 ms	51580 KB	Time limit exceeded
84	Execution timed out	1074 ms	51588 KB	Time limit exceeded
85	Execution timed out	1038 ms	51736 KB	Time limit exceeded
86	Execution timed out	1098 ms	55020 KB	Time limit exceeded
87	Execution timed out	1091 ms	55044 KB	Time limit exceeded
88	Execution timed out	1071 ms	54844 KB	Time limit exceeded
89	Execution timed out	1085 ms	54812 KB	Time limit exceeded
90	Execution timed out	1093 ms	43256 KB	Time limit exceeded
91	Execution timed out	1088 ms	54340 KB	Time limit exceeded
92	Execution timed out	1086 ms	54316 KB	Time limit exceeded
93	Execution timed out	1075 ms	54136 KB	Time limit exceeded
94	Execution timed out	1071 ms	53956 KB	Time limit exceeded
95	Execution timed out	1038 ms	53784 KB	Time limit exceeded
96	Execution timed out	1065 ms	53568 KB	Time limit exceeded
97	Execution timed out	1074 ms	53800 KB	Time limit exceeded
98	Execution timed out	1074 ms	54088 KB	Time limit exceeded
99	Execution timed out	1074 ms	54068 KB	Time limit exceeded
100	Execution timed out	1078 ms	53828 KB	Time limit exceeded