oj.uz

답안 #171021

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
171021 2019-12-27T05:29:53 Z super_j6 Bomb (IZhO17_bomb) C++14
14 / 100
 1000 ms 50552 KB 
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <string.h>
using namespace std;
#define endl '\n'
#define pi pair<int, int>

const int maxn = 2502;
int n, m;
int a[maxn][maxn];

bool solve(int x, int y){
	int b[maxn][maxn];
	memset(b, 0, sizeof(b));
	for(int i = x; i <= n; i++){
		for(int j = y; j <= m; j++){
			if(a[i][j] - a[i - x][j] - a[i][j - y] + a[i - x][j - y] == x * y){
				b[i - x + 1][j - y + 1]++;
				b[i - x + 1][j + 1]--;
				b[i + 1][j - y + 1]--;
				b[i + 1][j + 1]++;
			}
		}
	}
	
	int amt = a[n][m];
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= m; j++){
			b[i][j] += b[i - 1][j] + b[i][j - 1] - b[i - 1][j - 1];
			amt -= (b[i][j] > 0);
		}
	}
	return amt == 0;
}

int solveh(int x){
	int l = 0, r = n + 1;
	while(r - l > 1){
		int mid = (l + r) / 2;
		if(solve(x, mid)) l = mid;
		else r = mid;
	}
	return l;
}

int solvew(int x){
	int l = 0, r = m + 1;
	while(r - l > 1){
		int mid = (l + r) / 2;
		if(solve(mid, x)) l = mid;
		else r = mid;
	}
	return l;
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	
	cin >> n >> m;
	
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= m; j++){
			char c;
			cin >> c;
			a[i][j] = c - '0' + a[i - 1][j] + a[i][j - 1] - a[i - 1][j - 1];
		}
	}
	
	int h = solveh(1), w = solvew(1);
	int ret = max(h * solvew(h), w * solveh(w));
	cout << ret << endl;

	return 0;
}

Subtask #1
14.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 46 ms 24884 KB Output isn't correct
2 Incorrect 46 ms 24952 KB Output isn't correct
3 Incorrect 112 ms 34808 KB Output isn't correct
4 Incorrect 92 ms 35064 KB Output isn't correct
5 Incorrect 66 ms 24824 KB Output isn't correct
6 Incorrect 70 ms 24884 KB Output isn't correct
7 Correct 46 ms 24888 KB Output is correct
8 Incorrect 58 ms 24968 KB Output isn't correct
9 Incorrect 50 ms 24952 KB Output isn't correct
10 Correct 56 ms 24952 KB Output is correct
11 Incorrect 52 ms 24952 KB Output isn't correct
12 Correct 52 ms 24824 KB Output is correct
13 Correct 63 ms 24952 KB Output is correct
14 Correct 49 ms 24824 KB Output is correct
15 Incorrect 57 ms 24988 KB Output isn't correct
16 Correct 67 ms 24960 KB Output is correct
17 Correct 97 ms 25080 KB Output is correct
18 Incorrect 69 ms 25080 KB Output isn't correct
19 Incorrect 75 ms 25208 KB Output isn't correct
20 Incorrect 82 ms 25292 KB Output isn't correct
21 Incorrect 67 ms 25052 KB Output isn't correct
22 Incorrect 168 ms 25208 KB Output isn't correct
23 Incorrect 74 ms 25336 KB Output isn't correct
24 Incorrect 96 ms 25208 KB Output isn't correct
25 Incorrect 80 ms 25208 KB Output isn't correct
26 Correct 76 ms 25336 KB Output is correct
27 Correct 103 ms 26360 KB Output is correct
28 Incorrect 124 ms 26624 KB Output isn't correct
29 Incorrect 173 ms 27128 KB Output isn't correct
30 Incorrect 209 ms 27528 KB Output isn't correct
31 Incorrect 191 ms 27000 KB Output isn't correct
32 Incorrect 201 ms 27260 KB Output isn't correct
33 Incorrect 197 ms 27640 KB Output isn't correct
34 Incorrect 156 ms 26712 KB Output isn't correct
35 Incorrect 196 ms 27688 KB Output isn't correct
36 Correct 199 ms 27640 KB Output is correct
37 Correct 68 ms 24952 KB Output is correct
38 Execution timed out 1070 ms 50040 KB Time limit exceeded
39 Correct 67 ms 25080 KB Output is correct
40 Correct 348 ms 31828 KB Output is correct
41 Correct 63 ms 24952 KB Output is correct
42 Incorrect 92 ms 25336 KB Output isn't correct
43 Execution timed out 1049 ms 49912 KB Time limit exceeded
44 Incorrect 191 ms 27640 KB Output isn't correct
45 Execution timed out 1070 ms 49936 KB Time limit exceeded
46 Execution timed out 1081 ms 49912 KB Time limit exceeded
47 Execution timed out 1064 ms 49912 KB Time limit exceeded
48 Execution timed out 1067 ms 50040 KB Time limit exceeded
49 Execution timed out 1084 ms 49916 KB Time limit exceeded
50 Execution timed out 1070 ms 50308 KB Time limit exceeded
51 Execution timed out 1080 ms 50168 KB Time limit exceeded
52 Execution timed out 1076 ms 50296 KB Time limit exceeded
53 Execution timed out 1057 ms 50216 KB Time limit exceeded
54 Execution timed out 1068 ms 50396 KB Time limit exceeded
55 Execution timed out 1057 ms 50168 KB Time limit exceeded
56 Execution timed out 1057 ms 50296 KB Time limit exceeded
57 Execution timed out 1052 ms 50168 KB Time limit exceeded
58 Execution timed out 1082 ms 50140 KB Time limit exceeded
59 Execution timed out 1079 ms 50056 KB Time limit exceeded
60 Execution timed out 1067 ms 50168 KB Time limit exceeded
61 Execution timed out 1080 ms 50168 KB Time limit exceeded
62 Execution timed out 1055 ms 50168 KB Time limit exceeded
63 Execution timed out 1075 ms 49916 KB Time limit exceeded
64 Execution timed out 1076 ms 49912 KB Time limit exceeded
65 Execution timed out 1083 ms 50040 KB Time limit exceeded
66 Execution timed out 1083 ms 49912 KB Time limit exceeded
67 Execution timed out 1068 ms 50140 KB Time limit exceeded
68 Execution timed out 1064 ms 50032 KB Time limit exceeded
69 Execution timed out 1055 ms 49912 KB Time limit exceeded
70 Execution timed out 1085 ms 45052 KB Time limit exceeded
71 Execution timed out 1079 ms 50132 KB Time limit exceeded
72 Execution timed out 1075 ms 49912 KB Time limit exceeded
73 Execution timed out 1071 ms 50040 KB Time limit exceeded
74 Execution timed out 1080 ms 49912 KB Time limit exceeded
75 Execution timed out 1088 ms 49912 KB Time limit exceeded
76 Execution timed out 1039 ms 49968 KB Time limit exceeded
77 Execution timed out 1075 ms 50040 KB Time limit exceeded
78 Execution timed out 1071 ms 49912 KB Time limit exceeded
79 Execution timed out 1062 ms 50440 KB Time limit exceeded
80 Execution timed out 1072 ms 50460 KB Time limit exceeded
81 Execution timed out 1055 ms 50492 KB Time limit exceeded
82 Execution timed out 1078 ms 50396 KB Time limit exceeded
83 Execution timed out 1074 ms 50412 KB Time limit exceeded
84 Execution timed out 1084 ms 50472 KB Time limit exceeded
85 Execution timed out 1069 ms 50528 KB Time limit exceeded
86 Execution timed out 1086 ms 50424 KB Time limit exceeded
87 Execution timed out 1026 ms 50424 KB Time limit exceeded
88 Execution timed out 1084 ms 50424 KB Time limit exceeded
89 Execution timed out 1086 ms 50428 KB Time limit exceeded
90 Execution timed out 1091 ms 45588 KB Time limit exceeded
91 Execution timed out 1063 ms 50424 KB Time limit exceeded
92 Execution timed out 1051 ms 50424 KB Time limit exceeded
93 Execution timed out 1020 ms 50424 KB Time limit exceeded
94 Execution timed out 1069 ms 50424 KB Time limit exceeded
95 Execution timed out 1083 ms 50424 KB Time limit exceeded
96 Execution timed out 1048 ms 50424 KB Time limit exceeded
97 Execution timed out 1042 ms 50492 KB Time limit exceeded
98 Execution timed out 1073 ms 50424 KB Time limit exceeded
99 Execution timed out 1059 ms 50552 KB Time limit exceeded
100 Execution timed out 1079 ms 50552 KB Time limit exceeded