답안 #386469

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
386469	2021-04-06T15:56:07 Z	vanic	Bomb (IZhO17_bomb)	C++14	35 / 100	1000 ms	99824 KB

bomb

#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <set>
#include <stack>
#include <vector>
#include <queue>
#include <map>
#include <cstring>
#include <array>
#include <bitset>
#include <cassert>
 
using namespace std;
 
const int maxn=2505;
 
bitset < maxn > a[maxn];
bitset < maxn > b[maxn];
int n, m;
 
bool provjeri(int x, int y){
	for(int i=0; i<n; i++){
		for(int j=0; j<m; j++){
			b[i][j]=a[i][j];
		}
	}
	bool ne;
	for(int i=0; i<n; i++){
		for(int j=0; j<m; j++){
			if(a[i][j]){
				ne=0;
				for(int k=i; k<i+x; k++){
					for(int l=j; l<j+y; l++){
						if(k>=n || l>=m || !a[k][l]){
							ne=1;
							break;
						}
						if(ne){
							break;
						}
					}
				}
				if(!ne){
					for(int k=i; k<i+x; k++){
						for(int l=j; l<j+y; l++){
							b[k][l]=0;
						}
					}
				}
			}
		}
	}
	for(int i=0; i<n; i++){
		for(int j=0; j<m; j++){
			if(b[i][j]){
				return 0;
			}
		}
	}
	return 1;
 
}

vector < array < int, 3 > > svi;
 
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin >> n >> m;
	string s;
	for(int i=0; i<n; i++){
		cin >> s;
		for(int j=0; j<m; j++){
			if(s[j]=='1'){
				a[i][j]=1;
			}
		}
	}
	int br=0;
	int mr=1e9, mc=1e9;
	for(int i=0; i<n; i++){
		for(int j=0; j<m; j++){
			if(a[i][j]){
				br++;
			}
			else if(br){
				mr=min(mr, br);
				br=0;
			}
		}
		if(br){
			mr=min(mr, br);
			br=0;
		}
	}
	for(int j=0; j<m; j++){
		for(int i=0; i<n; i++){
			if(a[i][j]){
				br++;
			}
			else if(br){
				mc=min(mc, br);
				br=0;
			}
		}
		if(br){
			mc=min(mc, br);
			br=0;
		}
	}
	assert(mr!=1e9);
	for(int i=mc; i>0; i--){
		for(int j=mr; j>0; j--){
			svi.push_back({i*j, i, j});
		}
	}
	sort(svi.begin(), svi.end());
	for(int i=svi.size()-1; i>-1; i--){
		if(provjeri(svi[i][1], svi[i][2])){
			cout << svi[i][0] << '\n';
			return 0;
		}
	}
	return 0;
}

Subtask #1

35.0 / 100.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	3 ms	1900 KB	Output is correct
4	Correct	3 ms	1900 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	32 ms	364 KB	Output is correct
20	Correct	35 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct
23	Correct	125 ms	364 KB	Output is correct
24	Correct	37 ms	364 KB	Output is correct
25	Correct	819 ms	508 KB	Output is correct
26	Correct	5 ms	364 KB	Output is correct
27	Correct	3 ms	492 KB	Output is correct
28	Correct	13 ms	492 KB	Output is correct
29	Execution timed out	1089 ms	748 KB	Time limit exceeded
30	Execution timed out	1094 ms	816 KB	Time limit exceeded
31	Execution timed out	1095 ms	748 KB	Time limit exceeded
32	Execution timed out	1080 ms	748 KB	Time limit exceeded
33	Execution timed out	1090 ms	1004 KB	Time limit exceeded
34	Correct	12 ms	492 KB	Output is correct
35	Execution timed out	1089 ms	620 KB	Time limit exceeded
36	Correct	851 ms	748 KB	Output is correct
37	Correct	1 ms	364 KB	Output is correct
38	Execution timed out	1089 ms	99824 KB	Time limit exceeded
39	Correct	1 ms	364 KB	Output is correct
40	Execution timed out	1085 ms	3812 KB	Time limit exceeded
41	Correct	1 ms	364 KB	Output is correct
42	Execution timed out	1099 ms	492 KB	Time limit exceeded
43	Execution timed out	1096 ms	4956 KB	Time limit exceeded
44	Execution timed out	1081 ms	1388 KB	Time limit exceeded
45	Execution timed out	1086 ms	25932 KB	Time limit exceeded
46	Correct	385 ms	1988 KB	Output is correct
47	Execution timed out	1076 ms	25940 KB	Time limit exceeded
48	Execution timed out	1093 ms	2028 KB	Time limit exceeded
49	Correct	604 ms	2028 KB	Output is correct
50	Execution timed out	1092 ms	2092 KB	Time limit exceeded
51	Execution timed out	1088 ms	2156 KB	Time limit exceeded
52	Execution timed out	1086 ms	2156 KB	Time limit exceeded
53	Execution timed out	1087 ms	2028 KB	Time limit exceeded
54	Execution timed out	1097 ms	2028 KB	Time limit exceeded
55	Execution timed out	1098 ms	2028 KB	Time limit exceeded
56	Execution timed out	1088 ms	3692 KB	Time limit exceeded
57	Execution timed out	1093 ms	1900 KB	Time limit exceeded
58	Execution timed out	1088 ms	2092 KB	Time limit exceeded
59	Execution timed out	1085 ms	2028 KB	Time limit exceeded
60	Execution timed out	1098 ms	1900 KB	Time limit exceeded
61	Execution timed out	1091 ms	1900 KB	Time limit exceeded
62	Execution timed out	1091 ms	3424 KB	Time limit exceeded
63	Execution timed out	1093 ms	25932 KB	Time limit exceeded
64	Execution timed out	1098 ms	2788 KB	Time limit exceeded
65	Execution timed out	1096 ms	2028 KB	Time limit exceeded
66	Execution timed out	1097 ms	2092 KB	Time limit exceeded
67	Execution timed out	1100 ms	2220 KB	Time limit exceeded
68	Execution timed out	1097 ms	2280 KB	Time limit exceeded
69	Execution timed out	1064 ms	1892 KB	Time limit exceeded
70	Execution timed out	1097 ms	3808 KB	Time limit exceeded
71	Execution timed out	1098 ms	7132 KB	Time limit exceeded
72	Execution timed out	1093 ms	13400 KB	Time limit exceeded
73	Execution timed out	1086 ms	13400 KB	Time limit exceeded
74	Execution timed out	1097 ms	13400 KB	Time limit exceeded
75	Execution timed out	1096 ms	13528 KB	Time limit exceeded
76	Execution timed out	1100 ms	13528 KB	Time limit exceeded
77	Execution timed out	1092 ms	13488 KB	Time limit exceeded
78	Execution timed out	1101 ms	13528 KB	Time limit exceeded
79	Execution timed out	1099 ms	1508 KB	Time limit exceeded
80	Execution timed out	1100 ms	1516 KB	Time limit exceeded
81	Execution timed out	1088 ms	2292 KB	Time limit exceeded
82	Execution timed out	1095 ms	13528 KB	Time limit exceeded
83	Execution timed out	1099 ms	13528 KB	Time limit exceeded
84	Execution timed out	1089 ms	1260 KB	Time limit exceeded
85	Execution timed out	1065 ms	7388 KB	Time limit exceeded
86	Execution timed out	1046 ms	2028 KB	Time limit exceeded
87	Execution timed out	1095 ms	4700 KB	Time limit exceeded
88	Execution timed out	1091 ms	13528 KB	Time limit exceeded
89	Execution timed out	1095 ms	3168 KB	Time limit exceeded
90	Execution timed out	1093 ms	4192 KB	Time limit exceeded
91	Execution timed out	1091 ms	4320 KB	Time limit exceeded
92	Execution timed out	1090 ms	3424 KB	Time limit exceeded
93	Execution timed out	1098 ms	2028 KB	Time limit exceeded
94	Execution timed out	1097 ms	3168 KB	Time limit exceeded
95	Execution timed out	1095 ms	13528 KB	Time limit exceeded
96	Execution timed out	1098 ms	13528 KB	Time limit exceeded
97	Execution timed out	1094 ms	2028 KB	Time limit exceeded
98	Execution timed out	1089 ms	13528 KB	Time limit exceeded
99	Execution timed out	1095 ms	3168 KB	Time limit exceeded
100	Execution timed out	1088 ms	2028 KB	Time limit exceeded