#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
const int MAXN = 3005, MAXX = 9e6 + 10;
void speed()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
}
int n, m;
char a[MAXN][MAXN];
int cnt;
vector < int > v[MAXX];
void read()
{
cin >> n >> m;
for (int i = 1; i <= n; ++ i)
{
for (int j = 1; j <= m; ++ j)
{
cin >> a[i][j];
}
}
}
int dir0[MAXN][MAXN], dir1[MAXN][MAXN];
int type[MAXX];
void precompute()
{
for (int i = 1; i <= n; ++ i)
{
for (int j = 1; j <= m-2; ++ j)
{
if(a[i][j] == 'R' && a[i][j+1] == 'G' && a[i][j+2] == 'W')
{
cnt ++;
//g.push_back(tri(i, j, 0, cnt));
type[cnt] = 1;
dir0[i][j] = cnt;
dir0[i][j+1] = cnt;
dir0[i][j+2] = cnt;
}
}
}
for (int i = 1; i <= n-2; ++ i)
{
for (int j = 1; j <= m; ++ j)
{
if(a[i][j] == 'R' && a[i+1][j] == 'G' && a[i+2][j] == 'W')
{
cnt ++;
type[cnt] = 2;
//g.push_back(tri(i, j, 1, cnt));
dir1[i][j] = cnt;
dir1[i+1][j] = cnt;
dir1[i+2][j] = cnt;
}
}
}
for (int i = 1; i <= n; ++ i)
{
for (int j = 1; j <= m; ++ j)
{
if(dir0[i][j] && dir1[i][j])
{
v[dir0[i][j]].push_back(dir1[i][j]);
v[dir1[i][j]].push_back(dir0[i][j]);
}
}
}
}
int used[MAXN];
int cnt1 = 0, cnt2 = 0;
void dfs(int beg)
{
used[beg] = 1;
if(type[beg] == 1)cnt1 ++;
else cnt2 ++;
int nb;
for (int i = 0; i < v[beg].size(); ++ i)
{
nb = v[beg][i];
if(!used[nb])dfs(nb);
}
}
void solve()
{
int ans = 0;
for (int i = 1; i <= cnt; ++ i)
{
if(!used[i])
{
cnt1 = 0;
cnt2 = 0;
dfs(i);
ans += max(cnt1, cnt2);
}
}
cout << ans << endl;
}
int main()
{
speed();
read();
precompute();
solve();
return 0;
}
Compilation message
dango_maker.cpp: In function 'void dfs(int)':
dango_maker.cpp:80:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
80 | for (int i = 0; i < v[beg].size(); ++ i)
| ~~^~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
93 ms |
211592 KB |
Output is correct |
2 |
Correct |
88 ms |
211596 KB |
Output is correct |
3 |
Correct |
87 ms |
211648 KB |
Output is correct |
4 |
Correct |
87 ms |
211564 KB |
Output is correct |
5 |
Correct |
90 ms |
211596 KB |
Output is correct |
6 |
Correct |
89 ms |
211588 KB |
Output is correct |
7 |
Correct |
94 ms |
211792 KB |
Output is correct |
8 |
Correct |
89 ms |
211656 KB |
Output is correct |
9 |
Correct |
88 ms |
211616 KB |
Output is correct |
10 |
Correct |
86 ms |
211592 KB |
Output is correct |
11 |
Correct |
87 ms |
211600 KB |
Output is correct |
12 |
Correct |
87 ms |
211672 KB |
Output is correct |
13 |
Correct |
85 ms |
211712 KB |
Output is correct |
14 |
Correct |
88 ms |
211692 KB |
Output is correct |
15 |
Correct |
88 ms |
211612 KB |
Output is correct |
16 |
Correct |
88 ms |
211700 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
93 ms |
211592 KB |
Output is correct |
2 |
Correct |
88 ms |
211596 KB |
Output is correct |
3 |
Correct |
87 ms |
211648 KB |
Output is correct |
4 |
Correct |
87 ms |
211564 KB |
Output is correct |
5 |
Correct |
90 ms |
211596 KB |
Output is correct |
6 |
Correct |
89 ms |
211588 KB |
Output is correct |
7 |
Correct |
94 ms |
211792 KB |
Output is correct |
8 |
Correct |
89 ms |
211656 KB |
Output is correct |
9 |
Correct |
88 ms |
211616 KB |
Output is correct |
10 |
Correct |
86 ms |
211592 KB |
Output is correct |
11 |
Correct |
87 ms |
211600 KB |
Output is correct |
12 |
Correct |
87 ms |
211672 KB |
Output is correct |
13 |
Correct |
85 ms |
211712 KB |
Output is correct |
14 |
Correct |
88 ms |
211692 KB |
Output is correct |
15 |
Correct |
88 ms |
211612 KB |
Output is correct |
16 |
Correct |
88 ms |
211700 KB |
Output is correct |
17 |
Correct |
87 ms |
211672 KB |
Output is correct |
18 |
Correct |
98 ms |
211708 KB |
Output is correct |
19 |
Correct |
86 ms |
211656 KB |
Output is correct |
20 |
Correct |
86 ms |
211668 KB |
Output is correct |
21 |
Correct |
87 ms |
211656 KB |
Output is correct |
22 |
Correct |
89 ms |
211736 KB |
Output is correct |
23 |
Correct |
87 ms |
211620 KB |
Output is correct |
24 |
Correct |
87 ms |
211620 KB |
Output is correct |
25 |
Correct |
90 ms |
211588 KB |
Output is correct |
26 |
Correct |
87 ms |
211660 KB |
Output is correct |
27 |
Correct |
88 ms |
211780 KB |
Output is correct |
28 |
Correct |
92 ms |
211736 KB |
Output is correct |
29 |
Correct |
91 ms |
211736 KB |
Output is correct |
30 |
Correct |
89 ms |
211648 KB |
Output is correct |
31 |
Correct |
89 ms |
211680 KB |
Output is correct |
32 |
Correct |
88 ms |
211624 KB |
Output is correct |
33 |
Correct |
91 ms |
211788 KB |
Output is correct |
34 |
Incorrect |
88 ms |
211788 KB |
Output isn't correct |
35 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
93 ms |
211592 KB |
Output is correct |
2 |
Correct |
88 ms |
211596 KB |
Output is correct |
3 |
Correct |
87 ms |
211648 KB |
Output is correct |
4 |
Correct |
87 ms |
211564 KB |
Output is correct |
5 |
Correct |
90 ms |
211596 KB |
Output is correct |
6 |
Correct |
89 ms |
211588 KB |
Output is correct |
7 |
Correct |
94 ms |
211792 KB |
Output is correct |
8 |
Correct |
89 ms |
211656 KB |
Output is correct |
9 |
Correct |
88 ms |
211616 KB |
Output is correct |
10 |
Correct |
86 ms |
211592 KB |
Output is correct |
11 |
Correct |
87 ms |
211600 KB |
Output is correct |
12 |
Correct |
87 ms |
211672 KB |
Output is correct |
13 |
Correct |
85 ms |
211712 KB |
Output is correct |
14 |
Correct |
88 ms |
211692 KB |
Output is correct |
15 |
Correct |
88 ms |
211612 KB |
Output is correct |
16 |
Correct |
88 ms |
211700 KB |
Output is correct |
17 |
Correct |
87 ms |
211672 KB |
Output is correct |
18 |
Correct |
98 ms |
211708 KB |
Output is correct |
19 |
Correct |
86 ms |
211656 KB |
Output is correct |
20 |
Correct |
86 ms |
211668 KB |
Output is correct |
21 |
Correct |
87 ms |
211656 KB |
Output is correct |
22 |
Correct |
89 ms |
211736 KB |
Output is correct |
23 |
Correct |
87 ms |
211620 KB |
Output is correct |
24 |
Correct |
87 ms |
211620 KB |
Output is correct |
25 |
Correct |
90 ms |
211588 KB |
Output is correct |
26 |
Correct |
87 ms |
211660 KB |
Output is correct |
27 |
Correct |
88 ms |
211780 KB |
Output is correct |
28 |
Correct |
92 ms |
211736 KB |
Output is correct |
29 |
Correct |
91 ms |
211736 KB |
Output is correct |
30 |
Correct |
89 ms |
211648 KB |
Output is correct |
31 |
Correct |
89 ms |
211680 KB |
Output is correct |
32 |
Correct |
88 ms |
211624 KB |
Output is correct |
33 |
Correct |
91 ms |
211788 KB |
Output is correct |
34 |
Incorrect |
88 ms |
211788 KB |
Output isn't correct |
35 |
Halted |
0 ms |
0 KB |
- |