oj.uz

답안 #171019

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
171019 2019-12-27T05:24:10 Z super_j6 Bomb (IZhO17_bomb) C++14
17 / 100
 1000 ms 51704 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 = n + 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 ret = max(solveh(1) * solvew(solveh(1)), solvew(1) * solveh(solvew(1)));
	cout << ret << endl;

	return 0;
}

Subtask #1
17.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 41 ms 24824 KB Output isn't correct
2 Correct 81 ms 24952 KB Output is correct
3 Correct 245 ms 34936 KB Output is correct
4 Correct 212 ms 34936 KB Output is correct
5 Incorrect 37 ms 25004 KB Output isn't correct
6 Incorrect 34 ms 24824 KB Output isn't correct
7 Correct 60 ms 24824 KB Output is correct
8 Incorrect 117 ms 24952 KB Output isn't correct
9 Incorrect 78 ms 24952 KB Output isn't correct
10 Correct 81 ms 24824 KB Output is correct
11 Incorrect 85 ms 24940 KB Output isn't correct
12 Correct 103 ms 24952 KB Output is correct
13 Correct 76 ms 24824 KB Output is correct
14 Correct 91 ms 24952 KB Output is correct
15 Incorrect 107 ms 24952 KB Output isn't correct
16 Correct 112 ms 24952 KB Output is correct
17 Correct 125 ms 25208 KB Output is correct
18 Incorrect 138 ms 25208 KB Output isn't correct
19 Incorrect 140 ms 25208 KB Output isn't correct
20 Incorrect 157 ms 25236 KB Output isn't correct
21 Incorrect 148 ms 25080 KB Output isn't correct
22 Incorrect 118 ms 25208 KB Output isn't correct
23 Incorrect 148 ms 25464 KB Output isn't correct
24 Incorrect 126 ms 25208 KB Output isn't correct
25 Incorrect 181 ms 25436 KB Output isn't correct
26 Correct 161 ms 25336 KB Output is correct
27 Correct 220 ms 26452 KB Output is correct
28 Incorrect 237 ms 26616 KB Output isn't correct
29 Incorrect 220 ms 26972 KB Output isn't correct
30 Incorrect 260 ms 27548 KB Output isn't correct
31 Incorrect 273 ms 26872 KB Output isn't correct
32 Incorrect 223 ms 27256 KB Output isn't correct
33 Incorrect 338 ms 27740 KB Output isn't correct
34 Incorrect 172 ms 26820 KB Output isn't correct
35 Incorrect 259 ms 27640 KB Output isn't correct
36 Correct 425 ms 27768 KB Output is correct
37 Correct 123 ms 25080 KB Output is correct
38 Execution timed out 1075 ms 51576 KB Time limit exceeded
39 Correct 184 ms 24952 KB Output is correct
40 Correct 492 ms 32200 KB Output is correct
41 Correct 88 ms 24952 KB Output is correct
42 Incorrect 118 ms 25212 KB Output isn't correct
43 Execution timed out 1088 ms 51512 KB Time limit exceeded
44 Incorrect 205 ms 27640 KB Output isn't correct
45 Execution timed out 1081 ms 51052 KB Time limit exceeded
46 Execution timed out 1091 ms 51064 KB Time limit exceeded
47 Execution timed out 1078 ms 51544 KB Time limit exceeded
48 Execution timed out 1042 ms 51452 KB Time limit exceeded
49 Execution timed out 1068 ms 51704 KB Time limit exceeded
50 Execution timed out 1078 ms 51556 KB Time limit exceeded
51 Execution timed out 1090 ms 51576 KB Time limit exceeded
52 Execution timed out 1088 ms 51576 KB Time limit exceeded
53 Execution timed out 1079 ms 51580 KB Time limit exceeded
54 Execution timed out 1079 ms 51576 KB Time limit exceeded
55 Execution timed out 1079 ms 51704 KB Time limit exceeded
56 Execution timed out 1073 ms 51576 KB Time limit exceeded
57 Execution timed out 1076 ms 51568 KB Time limit exceeded
58 Execution timed out 1074 ms 51704 KB Time limit exceeded
59 Execution timed out 1073 ms 51576 KB Time limit exceeded
60 Execution timed out 1070 ms 51576 KB Time limit exceeded
61 Execution timed out 1081 ms 51576 KB Time limit exceeded
62 Execution timed out 1060 ms 51588 KB Time limit exceeded
63 Execution timed out 1082 ms 50936 KB Time limit exceeded
64 Execution timed out 1078 ms 51320 KB Time limit exceeded
65 Execution timed out 1081 ms 51576 KB Time limit exceeded
66 Execution timed out 1078 ms 50424 KB Time limit exceeded
67 Execution timed out 1086 ms 50680 KB Time limit exceeded
68 Execution timed out 1082 ms 51192 KB Time limit exceeded
69 Execution timed out 1077 ms 50680 KB Time limit exceeded
70 Execution timed out 1058 ms 45560 KB Time limit exceeded
71 Execution timed out 1072 ms 51576 KB Time limit exceeded
72 Execution timed out 1076 ms 51576 KB Time limit exceeded
73 Execution timed out 1075 ms 50440 KB Time limit exceeded
74 Execution timed out 1071 ms 50552 KB Time limit exceeded
75 Execution timed out 1072 ms 50500 KB Time limit exceeded
76 Execution timed out 1085 ms 50424 KB Time limit exceeded
77 Execution timed out 1085 ms 50432 KB Time limit exceeded
78 Execution timed out 1054 ms 50552 KB Time limit exceeded
79 Execution timed out 1073 ms 50428 KB Time limit exceeded
80 Execution timed out 1080 ms 50512 KB Time limit exceeded
81 Execution timed out 1087 ms 50424 KB Time limit exceeded
82 Execution timed out 1072 ms 50424 KB Time limit exceeded
83 Execution timed out 1084 ms 50424 KB Time limit exceeded
84 Execution timed out 1083 ms 50488 KB Time limit exceeded
85 Execution timed out 1084 ms 50444 KB Time limit exceeded
86 Execution timed out 1075 ms 50468 KB Time limit exceeded
87 Execution timed out 1080 ms 50428 KB Time limit exceeded
88 Execution timed out 1086 ms 50680 KB Time limit exceeded
89 Execution timed out 1087 ms 50680 KB Time limit exceeded
90 Execution timed out 1083 ms 45560 KB Time limit exceeded
91 Execution timed out 1066 ms 50552 KB Time limit exceeded
92 Execution timed out 1064 ms 50684 KB Time limit exceeded
93 Execution timed out 1081 ms 51060 KB Time limit exceeded
94 Execution timed out 1074 ms 51064 KB Time limit exceeded
95 Execution timed out 1064 ms 51064 KB Time limit exceeded
96 Execution timed out 1083 ms 51156 KB Time limit exceeded
97 Execution timed out 1084 ms 51192 KB Time limit exceeded
98 Execution timed out 1077 ms 51648 KB Time limit exceeded
99 Execution timed out 1076 ms 51576 KB Time limit exceeded
100 Execution timed out 1074 ms 51576 KB Time limit exceeded