Submission #88092

# Submission time Handle Problem Language Result Execution time Memory
88092 2018-12-03T19:39:12 Z Pajaraja Bomb (IZhO17_bomb) C++17
26 / 100
1000 ms 132096 KB
#include <bits/stdc++.h>
using namespace std;
bool t[2507][2507],r[2507][2507];
int p[2507][2507],d[2507][2507],n,m;
bool provera(int x,int y)
{
	for(int i=x;i<=n;i++) for(int j=y;j<=m;j++) r[i][j]=(p[i][j]-p[i-x][j]-p[i][j-y]+p[i-x][j-y]==x*y);
	for(int i=n;i>0;i--) for(int j=m;j>0;j--) d[i][j]=r[i][j]+d[i+1][j]+d[i][j+1]-d[i+1][j+1];
	for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) if(t[i][j] && d[i][j]-d[i+x][j]-d[i][j+y]+d[i+x][j+y]==0) return false;
	return true;
}
int main()
{
	int lh=2507,lv=2507;
	cin>>n>>m;
	for(int i=1;i<=n;i++)
	{
		string s;
		cin>>s;
		for(int j=1;j<=m;j++) t[i][j]=(s[j-1]=='1'?1:0);
	}
	for(int i=1;i<=n;i++)
	{
		int cur=0;
		for(int j=1;j<=m;j++)
		{
			if(t[i][j]==0) {if(cur!=0) lh=min(lh,cur); cur=0;}
			else cur++;
		}
		if(cur!=0) lh=min(lh,cur);
	}
	for(int i=1;i<=m;i++)
	{
		int cur=0;
		for(int j=1;j<=n;j++)
		{
			if(t[j][i]==0) {if(cur!=0) lv=min(lv,cur); cur=0;}
			else cur++;
		}
		if(cur!=0) lv=min(lv,cur);
	}
	int sol=0;
	for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) p[i][j]=t[i][j]+p[i-1][j]+p[i][j-1]-p[i-1][j-1];
	for(int i=1;i<=lv;i++)
	{
		while(!provera(lh,i)) lh--; 
		sol=max(sol,lh*i);
	}
	printf("%d",sol);
}
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Correct 2 ms 632 KB Output is correct
3 Correct 49 ms 32840 KB Output is correct
4 Correct 51 ms 32840 KB Output is correct
5 Incorrect 3 ms 32840 KB Output isn't correct
6 Incorrect 3 ms 32840 KB Output isn't correct
7 Correct 2 ms 32840 KB Output is correct
8 Correct 3 ms 32840 KB Output is correct
9 Correct 3 ms 32840 KB Output is correct
10 Correct 3 ms 32840 KB Output is correct
11 Correct 3 ms 32840 KB Output is correct
12 Correct 3 ms 32840 KB Output is correct
13 Incorrect 3 ms 32840 KB Output isn't correct
14 Correct 3 ms 32840 KB Output is correct
15 Correct 3 ms 32840 KB Output is correct
16 Incorrect 2 ms 32840 KB Output isn't correct
17 Incorrect 4 ms 32840 KB Output isn't correct
18 Correct 4 ms 32840 KB Output is correct
19 Runtime error 12 ms 32840 KB Execution killed with signal 11 (could be triggered by violating memory limits)
20 Runtime error 11 ms 32840 KB Execution killed with signal 11 (could be triggered by violating memory limits)
21 Correct 3 ms 32840 KB Output is correct
22 Correct 4 ms 32840 KB Output is correct
23 Correct 7 ms 32840 KB Output is correct
24 Runtime error 10 ms 32840 KB Execution killed with signal 11 (could be triggered by violating memory limits)
25 Correct 8 ms 32840 KB Output is correct
26 Correct 5 ms 32840 KB Output is correct
27 Incorrect 13 ms 32840 KB Output isn't correct
28 Correct 21 ms 32840 KB Output is correct
29 Runtime error 143 ms 32840 KB Execution killed with signal 11 (could be triggered by violating memory limits)
30 Correct 272 ms 32840 KB Output is correct
31 Correct 158 ms 32840 KB Output is correct
32 Runtime error 142 ms 32840 KB Execution killed with signal 11 (could be triggered by violating memory limits)
33 Correct 333 ms 32840 KB Output is correct
34 Correct 21 ms 32840 KB Output is correct
35 Incorrect 176 ms 32840 KB Output isn't correct
36 Runtime error 108 ms 32840 KB Execution killed with signal 11 (could be triggered by violating memory limits)
37 Incorrect 2 ms 32840 KB Output isn't correct
38 Execution timed out 1077 ms 71368 KB Time limit exceeded
39 Correct 2 ms 71368 KB Output is correct
40 Execution timed out 1070 ms 71368 KB Time limit exceeded
41 Correct 3 ms 71368 KB Output is correct
42 Correct 10 ms 71368 KB Output is correct
43 Execution timed out 1078 ms 83176 KB Time limit exceeded
44 Correct 492 ms 83176 KB Output is correct
45 Execution timed out 1031 ms 87776 KB Time limit exceeded
46 Execution timed out 1082 ms 96636 KB Time limit exceeded
47 Execution timed out 1039 ms 100000 KB Time limit exceeded
48 Execution timed out 1072 ms 108952 KB Time limit exceeded
49 Runtime error 1008 ms 132096 KB Execution killed with signal 11 (could be triggered by violating memory limits)
50 Execution timed out 1093 ms 132096 KB Time limit exceeded
51 Execution timed out 1059 ms 132096 KB Time limit exceeded
52 Execution timed out 1092 ms 132096 KB Time limit exceeded
53 Execution timed out 1038 ms 132096 KB Time limit exceeded
54 Execution timed out 1033 ms 132096 KB Time limit exceeded
55 Execution timed out 1040 ms 132096 KB Time limit exceeded
56 Execution timed out 1041 ms 132096 KB Time limit exceeded
57 Execution timed out 1091 ms 132096 KB Time limit exceeded
58 Execution timed out 1061 ms 132096 KB Time limit exceeded
59 Execution timed out 1041 ms 132096 KB Time limit exceeded
60 Execution timed out 1080 ms 132096 KB Time limit exceeded
61 Execution timed out 1043 ms 132096 KB Time limit exceeded
62 Execution timed out 1051 ms 132096 KB Time limit exceeded
63 Execution timed out 1081 ms 132096 KB Time limit exceeded
64 Execution timed out 1080 ms 132096 KB Time limit exceeded
65 Execution timed out 1044 ms 132096 KB Time limit exceeded
66 Execution timed out 1085 ms 132096 KB Time limit exceeded
67 Execution timed out 1068 ms 132096 KB Time limit exceeded
68 Execution timed out 1080 ms 132096 KB Time limit exceeded
69 Execution timed out 1085 ms 132096 KB Time limit exceeded
70 Execution timed out 1078 ms 132096 KB Time limit exceeded
71 Execution timed out 1063 ms 132096 KB Time limit exceeded
72 Execution timed out 1078 ms 132096 KB Time limit exceeded
73 Execution timed out 1083 ms 132096 KB Time limit exceeded
74 Execution timed out 1086 ms 132096 KB Time limit exceeded
75 Execution timed out 1076 ms 132096 KB Time limit exceeded
76 Execution timed out 1064 ms 132096 KB Time limit exceeded
77 Execution timed out 1087 ms 132096 KB Time limit exceeded
78 Execution timed out 1080 ms 132096 KB Time limit exceeded
79 Execution timed out 1090 ms 132096 KB Time limit exceeded
80 Execution timed out 1082 ms 132096 KB Time limit exceeded
81 Execution timed out 1084 ms 132096 KB Time limit exceeded
82 Execution timed out 1094 ms 132096 KB Time limit exceeded
83 Execution timed out 1086 ms 132096 KB Time limit exceeded
84 Execution timed out 1091 ms 132096 KB Time limit exceeded
85 Execution timed out 1091 ms 132096 KB Time limit exceeded
86 Execution timed out 1090 ms 132096 KB Time limit exceeded
87 Execution timed out 1082 ms 132096 KB Time limit exceeded
88 Execution timed out 1094 ms 132096 KB Time limit exceeded
89 Execution timed out 1091 ms 132096 KB Time limit exceeded
90 Execution timed out 1093 ms 132096 KB Time limit exceeded
91 Execution timed out 1081 ms 132096 KB Time limit exceeded
92 Execution timed out 1077 ms 132096 KB Time limit exceeded
93 Execution timed out 1083 ms 132096 KB Time limit exceeded
94 Execution timed out 1087 ms 132096 KB Time limit exceeded
95 Execution timed out 1078 ms 132096 KB Time limit exceeded
96 Execution timed out 1090 ms 132096 KB Time limit exceeded
97 Execution timed out 1076 ms 132096 KB Time limit exceeded
98 Execution timed out 1081 ms 132096 KB Time limit exceeded
99 Execution timed out 1093 ms 132096 KB Time limit exceeded
100 Execution timed out 1084 ms 132096 KB Time limit exceeded