| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 936200 |
2024-03-01T11:35:20 Z |
guagua0407 |
Bomb (IZhO17_bomb) |
C++17 |
|
154 ms |
62476 KB |
#include <bits/stdc++.h>
using namespace std;
const int mxN=2500;
int n, m, mxw=mxN, mxh=mxN, u[mxN][mxN], d[mxN][mxN], a[mxN], ans;
string g[mxN];
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> n >> m;
for(int i=0; i<n; ++i) {
cin >> g[i];
for(int j=0, w=0; j<m; ++j) {
w=g[i][j]&1?w+1:0;
if(w&&(j+1>=m||g[i][j+1]&1^1))
mxw=min(w, mxw);
}
}
for(int j=0; j<m; ++j) {
for(int i=0, h=0; i<n; ++i) {
h=g[i][j]&1?h+1:0;
if(h&&(i+1>=n||g[i+1][j]&1^1))
mxh=min(h, mxh);
u[i][j]=i&&g[i-1][j]&1?u[i-1][j]:i;
}
for(int i=n-1; ~i; --i)
d[i][j]=i<n-1&&g[i+1][j]&1?d[i+1][j]:i;
}
for(int i=0; i<mxw; ++i)
a[i]=mxh;
auto c=[]() {
for(int i=0; i<n; ++i) {
for(int j=0; j<m; ++j) {
if(j&&g[i][j-1]&1||g[i][j]&1^1)
continue;
for(int k=0, l=0, r=n; k<mxw; ++k) {
l=max(u[i][j+k], l);
r=min(d[i][j+k], r);
a[k]=min(r-l+1, a[k]);
}
}
}
};
c();
for(int i=0; i<n; ++i) {
reverse(g[i].begin(), g[i].end());
reverse(u[i], u[i]+m);
reverse(d[i], d[i]+m);
}
//c();
for(int i=0; i<mxw; ++i)
ans=max((i+1)*a[i], ans);
cout << ans;
}
Compilation message
bomb.cpp: In function 'int main()':
bomb.cpp:17:28: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
17 | if(w&&(j+1>=m||g[i][j+1]&1^1))
bomb.cpp:24:28: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
24 | if(h&&(i+1>=n||g[i+1][j]&1^1))
bomb.cpp: In lambda function:
bomb.cpp:36:31: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
36 | if(j&&g[i][j-1]&1||g[i][j]&1^1)
bomb.cpp:36:9: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
36 | if(j&&g[i][j-1]&1||g[i][j]&1^1)
| ~^~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 3 |
Correct |
11 ms |
48208 KB |
Output is correct |
| 4 |
Correct |
6 ms |
48220 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2588 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
| 9 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
| 10 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 12 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
| 13 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 14 |
Correct |
1 ms |
4528 KB |
Output is correct |
| 15 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
| 16 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 17 |
Correct |
1 ms |
6492 KB |
Output is correct |
| 18 |
Correct |
1 ms |
6492 KB |
Output is correct |
| 19 |
Incorrect |
1 ms |
6744 KB |
Output isn't correct |
| 20 |
Incorrect |
1 ms |
6748 KB |
Output isn't correct |
| 21 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 22 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 23 |
Incorrect |
1 ms |
6748 KB |
Output isn't correct |
| 24 |
Incorrect |
1 ms |
6748 KB |
Output isn't correct |
| 25 |
Incorrect |
1 ms |
6748 KB |
Output isn't correct |
| 26 |
Correct |
2 ms |
6748 KB |
Output is correct |
| 27 |
Correct |
3 ms |
10844 KB |
Output is correct |
| 28 |
Incorrect |
2 ms |
10908 KB |
Output isn't correct |
| 29 |
Incorrect |
3 ms |
11276 KB |
Output isn't correct |
| 30 |
Incorrect |
4 ms |
13232 KB |
Output isn't correct |
| 31 |
Correct |
3 ms |
11100 KB |
Output is correct |
| 32 |
Incorrect |
3 ms |
11096 KB |
Output isn't correct |
| 33 |
Incorrect |
4 ms |
15192 KB |
Output isn't correct |
| 34 |
Incorrect |
2 ms |
10844 KB |
Output isn't correct |
| 35 |
Incorrect |
3 ms |
15192 KB |
Output isn't correct |
| 36 |
Correct |
4 ms |
15196 KB |
Output is correct |
| 37 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
| 38 |
Correct |
132 ms |
62072 KB |
Output is correct |
| 39 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
| 40 |
Correct |
12 ms |
24736 KB |
Output is correct |
| 41 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 42 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 43 |
Correct |
129 ms |
62196 KB |
Output is correct |
| 44 |
Correct |
4 ms |
15196 KB |
Output is correct |
| 45 |
Incorrect |
108 ms |
62120 KB |
Output isn't correct |
| 46 |
Correct |
123 ms |
62032 KB |
Output is correct |
| 47 |
Incorrect |
150 ms |
61952 KB |
Output isn't correct |
| 48 |
Correct |
122 ms |
62204 KB |
Output is correct |
| 49 |
Correct |
112 ms |
62476 KB |
Output is correct |
| 50 |
Correct |
130 ms |
62064 KB |
Output is correct |
| 51 |
Correct |
132 ms |
62052 KB |
Output is correct |
| 52 |
Correct |
120 ms |
62036 KB |
Output is correct |
| 53 |
Correct |
145 ms |
62196 KB |
Output is correct |
| 54 |
Correct |
125 ms |
62036 KB |
Output is correct |
| 55 |
Incorrect |
132 ms |
62068 KB |
Output isn't correct |
| 56 |
Correct |
154 ms |
62048 KB |
Output is correct |
| 57 |
Incorrect |
131 ms |
62036 KB |
Output isn't correct |
| 58 |
Correct |
131 ms |
62036 KB |
Output is correct |
| 59 |
Correct |
153 ms |
62296 KB |
Output is correct |
| 60 |
Correct |
138 ms |
62208 KB |
Output is correct |
| 61 |
Correct |
140 ms |
62196 KB |
Output is correct |
| 62 |
Correct |
142 ms |
62196 KB |
Output is correct |
| 63 |
Correct |
139 ms |
62160 KB |
Output is correct |
| 64 |
Correct |
138 ms |
62160 KB |
Output is correct |
| 65 |
Correct |
130 ms |
62128 KB |
Output is correct |
| 66 |
Correct |
136 ms |
62160 KB |
Output is correct |
| 67 |
Correct |
134 ms |
62032 KB |
Output is correct |
| 68 |
Correct |
135 ms |
62168 KB |
Output is correct |
| 69 |
Correct |
133 ms |
62048 KB |
Output is correct |
| 70 |
Incorrect |
63 ms |
51824 KB |
Output isn't correct |
| 71 |
Incorrect |
129 ms |
62032 KB |
Output isn't correct |
| 72 |
Incorrect |
131 ms |
62040 KB |
Output isn't correct |
| 73 |
Correct |
142 ms |
62476 KB |
Output is correct |
| 74 |
Incorrect |
133 ms |
62036 KB |
Output isn't correct |
| 75 |
Incorrect |
129 ms |
62012 KB |
Output isn't correct |
| 76 |
Incorrect |
131 ms |
62204 KB |
Output isn't correct |
| 77 |
Incorrect |
136 ms |
62132 KB |
Output isn't correct |
| 78 |
Incorrect |
138 ms |
62224 KB |
Output isn't correct |
| 79 |
Incorrect |
123 ms |
62032 KB |
Output isn't correct |
| 80 |
Incorrect |
118 ms |
62064 KB |
Output isn't correct |
| 81 |
Incorrect |
135 ms |
62032 KB |
Output isn't correct |
| 82 |
Incorrect |
127 ms |
62060 KB |
Output isn't correct |
| 83 |
Incorrect |
133 ms |
62052 KB |
Output isn't correct |
| 84 |
Incorrect |
110 ms |
62032 KB |
Output isn't correct |
| 85 |
Incorrect |
134 ms |
62192 KB |
Output isn't correct |
| 86 |
Incorrect |
136 ms |
62160 KB |
Output isn't correct |
| 87 |
Incorrect |
136 ms |
62080 KB |
Output isn't correct |
| 88 |
Correct |
116 ms |
62032 KB |
Output is correct |
| 89 |
Correct |
131 ms |
62392 KB |
Output is correct |
| 90 |
Incorrect |
68 ms |
51796 KB |
Output isn't correct |
| 91 |
Incorrect |
127 ms |
62036 KB |
Output isn't correct |
| 92 |
Incorrect |
137 ms |
62000 KB |
Output isn't correct |
| 93 |
Incorrect |
118 ms |
62292 KB |
Output isn't correct |
| 94 |
Correct |
126 ms |
62052 KB |
Output is correct |
| 95 |
Incorrect |
124 ms |
62196 KB |
Output isn't correct |
| 96 |
Correct |
131 ms |
62028 KB |
Output is correct |
| 97 |
Incorrect |
122 ms |
62188 KB |
Output isn't correct |
| 98 |
Incorrect |
112 ms |
62036 KB |
Output isn't correct |
| 99 |
Incorrect |
104 ms |
62192 KB |
Output isn't correct |
| 100 |
Incorrect |
113 ms |
62196 KB |
Output isn't correct |
