// In the name of Allah
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define all(x) (x).begin(),(x).end()
#define len(x) ((ll) (x).size())
#define F first
#define S second
#define pb push_back
#define sep ' '
#define endl '\n'
#define Mp make_pair
#define debug(x) cerr << #x << ": " << x << endl;
#define kill(x) cout << x << '\n', exit(0);
#define set_dec(x) cout << fixed << setprecision(x);
#define file_io(x,y) freopen(x, "r", stdin); freopen(y, "w", stdout);
int n, m;
const int maxn = 3e3 + 5;
string s[maxn];
int cntv = 0;
vector<int> arr[maxn * maxn];
vector<int> adj[maxn * maxn];
bool mark[maxn];
int h[maxn]; int cnt[2];
int GI(int i, int j) {
return i * m + j;
}
void dfs(int v) {
mark[v] = 1;
cnt[h[v] % 2]++;
for (int u : adj[v]) {
if (!mark[u]) {
h[u] = h[v] + 1;
dfs(u);
}
}
}
int main() {
ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin >> n >> m;
for (int i = 0; i < n; i++) cin >> s[i];
for (int i = 0; i < n; i++) {
for (int j = 0; j < m - 2; j++) {
if (s[i][j] == 'R' && s[i][j + 1] == 'G' && s[i][j + 2] == 'W') {
arr[GI(i, j)].pb(cntv); arr[GI(i, j + 1)].pb(cntv); arr[GI(i, j + 2)].pb(cntv);
cntv++;
}
}
}
for (int i = 0; i < n - 2; i++) {
for (int j = 0; j < m; j++) {
if (s[i][j] == 'R' && s[i + 1][j] == 'G' && s[i + 2][j] == 'W') {
arr[GI(i, j)].pb(cntv); arr[GI(i + 1, j)].pb(cntv); arr[GI(i + 2, j)].pb(cntv);
cntv++;
}
}
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
for (int k1 = 0; k1 < len(arr[GI(i, j)]); k1++) {
for (int k2 = k1 + 1; k2 < len(arr[GI(i, j)]); k2++) {
int v1 = arr[GI(i, j)][k1], v2 = arr[GI(i, j)][k2];
adj[v1].pb(v2); adj[v2].pb(v1);
}
}
}
}
int output = 0;
for (int i = 0; i < cntv; i++) {
if (!mark[i]) {
dfs(i);
output += max(cnt[0], cnt[1]);
cnt[0] = 0; cnt[1] = 0;
}
}
cout << output << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
103 ms |
262144 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
103 ms |
262144 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
103 ms |
262144 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |