//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")
#include<bits/stdc++.h>
using namespace std;
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define sz(a) (int)a.size()
#define s second
#define f first
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
vector<pii> rid = {{0, 1}, {0, -1}, {1, 0}, {-1, 0}};
vector<pii> dir = {{-1, -1}, {-1, 1}, {1, -1}, {1, 1}};
const int N = 1e6 + 1, mod = 1e9 + 7;
const ll inf = 1e18;
double eps = 1e-15;
bool flg = 0;
void slv() {
int n, m;
cin >> n >> m;
char c[n + 1][m + 1];
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
cin >> c[i][j];
}
}
int dp[n + 1][m + 1][2], mx[n + m + 1];
memset(dp, 0, sizeof(dp));
memset(mx, 0, sizeof(mx));
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
int v = max(dp[i][j][0], dp[i][j][1]);
mx[i + j] = max(mx[i + j], v);
if (i < n && j > 1) {
dp[i + 1][j - 1][0] = max(dp[i + 1][j - 1][0], v);
dp[i + 1][j - 1][1] = max(dp[i + 1][j - 1][1], v);
}
if (j + 2 <= m && c[i][j] == 'R' && c[i][j + 1] == 'G' && c[i][j + 2] == 'W') {
if (i < n && j > 1) {
dp[i + 1][j - 1][0] = max(dp[i + 1][j - 1][0], dp[i][j][0] + 1);
dp[i + 1][j - 1][1] = max(dp[i + 1][j - 1][1], dp[i][j][0] + 1);
}
mx[i + j] = max(mx[i + j], dp[i][j][0] + 1);
}
if (i + 2 <= n && c[i][j] == 'R' && c[i + 1][j] == 'G' && c[i + 2][j] == 'W') {
//if (j > 3 && i + 3 <= n)
// dp[i + 3][j - 3][0] = max(dp[i + 3][j - 3][0], dp[i][j][1] + 1);
if (i < n && j > 1)
dp[i + 1][j - 1][1] = max(dp[i + 1][j - 1][1], dp[i][j][1] + 1);
mx[i + j] = max(mx[i + j], dp[i][j][1] + 1);
}
}
}
int ans = 0;
for (int i = 1; i <= n + m; i++) {
//cout << mx[i] << ' ';
ans += mx[i];
}
cout << ans;
}
main() {
//freopen("rsq.in", "r", stdin);
//freopen("rsq.out", "w", stdout);
ios_base::sync_with_stdio(0);
cin.tie(0);
int tp = 1;
if (flg) cin >> tp;
while (tp--) {
//cout << "Case #" << cur++ << ": ";
slv();
}
}
//wenomechainsama
Compilation message
dango_maker.cpp:75:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
75 | main() {
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
