forked from b-chae/AlgorithmStudy
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy path14500.cpp
More file actions
126 lines (114 loc) · 3.17 KB
/
Copy path14500.cpp
File metadata and controls
126 lines (114 loc) · 3.17 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
#include <iostream>
#include <math.h>
#include <string>
#include <vector>
using namespace std;
int N, M;
int board[500][500];
int ans = 0;
void shape1() {
int i, j, tmp;
for (i = 0; i < N; i++) {
for (j = 0; j < M - 3; j++) {
tmp = board[i][j] + board[i][j + 1] + board[i][j + 2] + board[i][j + 3];
if (ans < tmp) ans = tmp;
}
}
for (i = 0; i < N - 3; i++) {
for (j = 0; j < M; j++) {
tmp = board[i][j] + board[i + 1][j] + board[i + 2][j] + board[i + 3][j];
if (ans < tmp) ans = tmp;
}
}
}
void shape2() {
int i, j, tmp;
for (i = 0; i < N - 1; i++) {
for (j = 0; j < M - 1; j++) {
tmp = board[i][j] + board[i + 1][j] + board[i][j + 1] + board[i + 1][j + 1];
if (ans < tmp)ans = tmp;
}
}
}
void shape3() {
int i, j, tmp;
for (i = 0; i < N - 2; i++) {
for (j = 0; j < M - 1; j++) {
tmp = board[i][j] + board[i + 1][j] + board[i + 2][j] + board[i + 2][j + 1];
if (ans < tmp)ans = tmp;
tmp = board[i][j] + board[i + 1][j] + board[i + 2][j] + board[i][j + 1];
if (ans < tmp)ans = tmp;
tmp = board[i][j + 1] + board[i + 1][j + 1] + board[i + 2][j + 1] + board[i + 2][j];
if (ans < tmp)ans = tmp;
tmp = board[i][j + 1] + board[i + 1][j + 1] + board[i + 2][j + 1] + board[i][j];
if (ans < tmp)ans = tmp;
}
}
for (i = 0; i < N - 1; i++) {
for (j = 0; j < M - 2; j++) {
tmp = board[i][j] + board[i][j + 1] + board[i][j + 2] + board[i + 1][j + 2];
if (ans < tmp)ans = tmp;
tmp = board[i][j] + board[i][j + 1] + board[i][j + 2] + board[i + 1][j];
if (ans < tmp)ans = tmp;
tmp = board[i + 1][j] + board[i + 1][j + 1] + board[i + 1][j + 2] + board[i][j];
if (ans < tmp)ans = tmp;
tmp = board[i + 1][j] + board[i + 1][j + 1] + board[i + 1][j + 2] + board[i][j + 2];
if (ans < tmp)ans = tmp;
}
}
}
void shape4() {
int i, j, tmp;
for (i = 0; i < N - 2; i++) {
for (j = 0; j < M - 1; j++) {
tmp = board[i][j] + board[i + 1][j] + board[i + 1][j + 1] + board[i + 2][j + 1];
if (ans < tmp)ans = tmp;
tmp = board[i][j + 1] + board[i + 1][j + 1] + board[i + 1][j] + board[i + 2][j];
if (ans < tmp)ans = tmp;
}
}
for (i = 0; i < N - 1; i++) {
for (j = 0; j < M - 2; j++) {
tmp = board[i][j] + board[i][j + 1] + board[i + 1][j + 1] + board[i + 1][j + 2];
if (ans < tmp)ans = tmp;
tmp = board[i + 1][j] + board[i + 1][j + 1] + board[i][j + 1] + board[i][j + 2];
if (ans < tmp)ans = tmp;
}
}
}
void shape5() {
int i, j, tmp;
for (i = 0; i < N - 1; i++) {
for (j = 0; j < M - 2; j++) {
tmp = board[i][j] + board[i][j + 1] + board[i][j + 2] + board[i + 1][j + 1];
if (ans < tmp)ans = tmp;
tmp = board[i + 1][j] + board[i + 1][j + 1] + board[i + 1][j + 2] + board[i][j + 1];
if (ans < tmp)ans = tmp;
}
}
for (i = 0; i < N - 2; i++) {
for (j = 0; j < M - 1; j++) {
tmp = board[i][j] + board[i + 1][j] + board[i + 2][j] + board[i + 1][j + 1];
if (ans < tmp)ans = tmp;
tmp = board[i][j + 1] + board[i + 1][j + 1] + board[i + 2][j + 1] + board[i + 1][j];
if (ans < tmp)ans = tmp;
}
}
}
int main()
{
int i, j;
cin >> N >> M;
for (i = 0; i < N; i++) {
for (j = 0; j < M; j++) {
cin >> board[i][j];
}
}
shape1();
shape2();
shape3();
shape4();
shape5();
cout << ans;
return 0;
}