답안 #168981

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
168981	2019-12-17T11:07:06 Z	abil	Bomb (IZhO17_bomb)	C++14	22 / 100	1000 ms	111352 KB

bomb

#include <bits/stdc++.h>

#define fr first
#define sc second
#define pb push_back
#define mk make_pair
#define all(s) s.begin(),s.end()
//#define int long long

using namespace std;

const int N = (2500 + 12);
const int mod = (1e9 + 7);
const int INF = (0x3f3f3f3f);

char a[N][N], b[N][N];
int up[N][N], down[N][N], leftt[N][N], rightt[N][N];

int n, m;
bool solve(int x,int y){
	for(int i = 1;i <= n; i++){
		for(int j = 1;j <= m; j++){
			b[i][j] = '0';
		}
	}
	for(int i = 1;i <= n; i++){
		for(int j = 1;j <= m; j++){
			if(a[i][j] == '1' && i >= x && j >= y){
				int cnt = 0;
				for(int k = i - x + 1; k <= i; k++){
					for(int l = j - y + 1; l <= j; l++){
						cnt += (a[k][l] == '1');
					}
				}
				if(cnt == x * y){
					for(int k = i - x + 1; k <= i; k++){
						for(int l = j - y + 1; l <= j; l++){
							b[k][l] = '1';
						}
					}
				}
			}
		}
	}
	for(int i = 1;i <= n; i++){
		for(int j = 1;j <= m; j++){
			if(a[i][j] != b[i][j]){
				return false;
			}
		}
	}
	return true;
}

main()
{
	cin >> n >> m;
	for(int i = 1;i <= n; i++){
		for(int j = 1;j <= m; j++){
			cin >> a[i][j];
		}
	}
	int mnx = INF, mny = INF;
	for(int i = 1;i <= n; i++){
		int cnt = 0;
		for(int j = 1;j <= m; j++){
			cnt = (a[i][j] == '0' ? 0 : cnt + 1);
			leftt[i][j] = cnt;
			mny = min(mny, leftt[i][j]);
		}
	}
	for(int i = 1;i <= n; i++){
		int cnt = 0;
		for(int j = m;j >= 1; j--){
			cnt = (a[i][j] == '0' ? 0 : cnt + 1);
			rightt[i][j] = cnt;
			mny = min(mny, rightt[i][j]);
		}
	}
	for(int i = 1;i <= m; i++){
		int cnt = 0;
		for(int j = 1;j <= n; j++){
			cnt = (a[j][i] == '0' ? 0 : cnt + 1);
			up[j][i] = cnt;
			mnx = min(mnx, up[j][i]);
		}
	}
	for(int i = 1;i <= m; i++){
		int cnt = 0;
		for(int j = n;j >= 1; j--){
			cnt = (a[j][i] == '0' ? 0 : cnt + 1);
			down[j][i] = cnt;
		}
	}
	int ans = 0;
	for(int i = 1;i <= n; i++){
		for(int j = 1;j <= m; j++){
			if(solve(i,j)){
				ans = max(ans, i * j);
			}
		}
	}
	cout << ans;
}
/*
20 20
11111000000000000000
11111000000000000000
11111100000000000000
11111111111000000000
00000111111000000000
00000111111000000000
00000011111000000000
00000001111100000000
00000000111110000000
00000000111110000000
00000000111110000000
00000000111110000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
*/

Compilation message

bomb.cpp:55:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^

Subtask #1

22.0 / 100.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	760 KB	Output is correct
3	Execution timed out	1081 ms	52728 KB	Time limit exceeded
4	Execution timed out	1087 ms	52856 KB	Time limit exceeded
5	Execution timed out	1085 ms	376 KB	Time limit exceeded
6	Correct	186 ms	436 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	3 ms	760 KB	Output is correct
9	Correct	3 ms	760 KB	Output is correct
10	Correct	2 ms	632 KB	Output is correct
11	Correct	3 ms	760 KB	Output is correct
12	Correct	2 ms	632 KB	Output is correct
13	Correct	2 ms	632 KB	Output is correct
14	Correct	3 ms	764 KB	Output is correct
15	Correct	3 ms	760 KB	Output is correct
16	Correct	5 ms	760 KB	Output is correct
17	Execution timed out	1074 ms	1784 KB	Time limit exceeded
18	Correct	41 ms	1912 KB	Output is correct
19	Correct	365 ms	2552 KB	Output is correct
20	Correct	478 ms	2444 KB	Output is correct
21	Correct	37 ms	1656 KB	Output is correct
22	Correct	84 ms	2040 KB	Output is correct
23	Execution timed out	1091 ms	2552 KB	Time limit exceeded
24	Correct	469 ms	2188 KB	Output is correct
25	Execution timed out	1047 ms	2552 KB	Time limit exceeded
26	Execution timed out	1089 ms	2552 KB	Time limit exceeded
27	Execution timed out	1091 ms	7800 KB	Time limit exceeded
28	Execution timed out	1084 ms	8056 KB	Time limit exceeded
29	Execution timed out	1089 ms	10488 KB	Time limit exceeded
30	Execution timed out	1090 ms	12408 KB	Time limit exceeded
31	Execution timed out	1090 ms	9720 KB	Time limit exceeded
32	Execution timed out	1085 ms	11260 KB	Time limit exceeded
33	Execution timed out	1090 ms	12924 KB	Time limit exceeded
34	Execution timed out	1080 ms	9080 KB	Time limit exceeded
35	Execution timed out	1085 ms	12924 KB	Time limit exceeded
36	Execution timed out	1074 ms	12920 KB	Time limit exceeded
37	Correct	3 ms	760 KB	Output is correct
38	Execution timed out	1089 ms	111052 KB	Time limit exceeded
39	Correct	3 ms	760 KB	Output is correct
40	Execution timed out	1086 ms	30840 KB	Time limit exceeded
41	Correct	4 ms	760 KB	Output is correct
42	Execution timed out	1068 ms	2552 KB	Time limit exceeded
43	Execution timed out	1095 ms	111096 KB	Time limit exceeded
44	Execution timed out	1085 ms	12920 KB	Time limit exceeded
45	Execution timed out	1087 ms	110932 KB	Time limit exceeded
46	Execution timed out	1085 ms	111060 KB	Time limit exceeded
47	Execution timed out	1092 ms	110972 KB	Time limit exceeded
48	Execution timed out	1084 ms	111232 KB	Time limit exceeded
49	Execution timed out	1097 ms	111004 KB	Time limit exceeded
50	Execution timed out	1089 ms	111160 KB	Time limit exceeded
51	Execution timed out	1084 ms	111120 KB	Time limit exceeded
52	Execution timed out	1093 ms	111224 KB	Time limit exceeded
53	Execution timed out	1085 ms	111208 KB	Time limit exceeded
54	Execution timed out	1085 ms	111096 KB	Time limit exceeded
55	Execution timed out	1092 ms	111164 KB	Time limit exceeded
56	Execution timed out	1089 ms	111352 KB	Time limit exceeded
57	Execution timed out	1088 ms	111236 KB	Time limit exceeded
58	Execution timed out	1088 ms	111256 KB	Time limit exceeded
59	Execution timed out	1091 ms	111232 KB	Time limit exceeded
60	Execution timed out	1072 ms	111176 KB	Time limit exceeded
61	Execution timed out	1090 ms	111224 KB	Time limit exceeded
62	Execution timed out	1077 ms	111252 KB	Time limit exceeded
63	Execution timed out	1078 ms	111236 KB	Time limit exceeded
64	Execution timed out	1087 ms	111212 KB	Time limit exceeded
65	Execution timed out	1093 ms	111224 KB	Time limit exceeded
66	Execution timed out	1093 ms	111224 KB	Time limit exceeded
67	Execution timed out	1078 ms	111120 KB	Time limit exceeded
68	Execution timed out	1085 ms	111176 KB	Time limit exceeded
69	Execution timed out	1079 ms	111272 KB	Time limit exceeded
70	Execution timed out	1071 ms	89192 KB	Time limit exceeded
71	Execution timed out	1089 ms	111352 KB	Time limit exceeded
72	Execution timed out	1080 ms	111072 KB	Time limit exceeded
73	Execution timed out	1088 ms	111196 KB	Time limit exceeded
74	Execution timed out	1083 ms	111124 KB	Time limit exceeded
75	Execution timed out	1084 ms	111144 KB	Time limit exceeded
76	Execution timed out	1089 ms	111352 KB	Time limit exceeded
77	Execution timed out	1087 ms	111352 KB	Time limit exceeded
78	Execution timed out	1088 ms	111208 KB	Time limit exceeded
79	Execution timed out	1091 ms	111272 KB	Time limit exceeded
80	Execution timed out	1071 ms	111168 KB	Time limit exceeded
81	Execution timed out	1083 ms	111096 KB	Time limit exceeded
82	Execution timed out	1099 ms	111096 KB	Time limit exceeded
83	Execution timed out	1093 ms	111096 KB	Time limit exceeded
84	Execution timed out	1079 ms	111128 KB	Time limit exceeded
85	Execution timed out	1090 ms	111096 KB	Time limit exceeded
86	Execution timed out	1084 ms	111096 KB	Time limit exceeded
87	Execution timed out	1089 ms	111076 KB	Time limit exceeded
88	Execution timed out	1088 ms	111024 KB	Time limit exceeded
89	Execution timed out	1095 ms	111092 KB	Time limit exceeded
90	Execution timed out	1084 ms	88952 KB	Time limit exceeded
91	Execution timed out	1090 ms	111028 KB	Time limit exceeded
92	Execution timed out	1091 ms	110968 KB	Time limit exceeded
93	Execution timed out	1093 ms	111096 KB	Time limit exceeded
94	Execution timed out	1090 ms	111224 KB	Time limit exceeded
95	Execution timed out	1078 ms	111112 KB	Time limit exceeded
96	Execution timed out	1091 ms	111180 KB	Time limit exceeded
97	Execution timed out	1082 ms	111096 KB	Time limit exceeded
98	Execution timed out	1094 ms	111152 KB	Time limit exceeded
99	Execution timed out	1082 ms	111128 KB	Time limit exceeded
100	Execution timed out	1094 ms	110972 KB	Time limit exceeded