#include <bits/stdc++.h>
#define pb push_back
#define whole(x) x.begin(), x.end()
#define sz(x) (int)x.size()
using namespace std;
typedef long long ll;
typedef long double ld;
const int N = (int)2005 + 7;
const int INF = (int)1e9 + 7;
const ll linf = (ll)1e18 + 1;
int n, m;
char a[N][N];
ll sumW[N][N], sumH[N][N], pref[N];
ll get(ll x) {
ll res = (x * (x + 1)) / 2;
return res;
}
int main() {
cin >> n >> m;
for (int i = 1; i <= n; ++i) {
for (int j = 1; j <= m; ++j) {
cin >> a[i][j];
}
}
ll ans = 0;
for (int i = 1; i <= n; ++i) {
for (int j = 1; j <= m; ++j) {
if (a[i][j] == '.') ++pref[j];
else pref[j] = 0;
}
stack<int> st;
for (int j = 1; j <= m; ++j) {
while (!st.empty() && pref[st.top()] >= pref[j]) st.pop();
int pos = 0;
if (!st.empty()) pos = st.top();
int width = j - pos, height = pref[j];
sumW[i][j] += sumW[i][pos] + sumH[i][pos] * 1ll * width;
sumH[i][j] += sumH[i][pos] + get(height) * 1ll * width;
sumW[i][j] += get(width) * 1ll * get(height);
ans += sumW[i][j];
st.push(j);
}
}
cout << ans << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
492 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
492 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
4844 KB |
Output is correct |
2 |
Correct |
11 ms |
4972 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
4844 KB |
Output is correct |
2 |
Correct |
11 ms |
4844 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
4844 KB |
Output is correct |
2 |
Correct |
11 ms |
4844 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
101 ms |
26124 KB |
Output is correct |
2 |
Correct |
219 ms |
53356 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
225 ms |
47360 KB |
Output is correct |
2 |
Correct |
332 ms |
68800 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
140 ms |
30572 KB |
Output is correct |
2 |
Correct |
267 ms |
56812 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
37 ms |
23020 KB |
Output is correct |
2 |
Correct |
269 ms |
66156 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
350 ms |
71276 KB |
Output is correct |
2 |
Correct |
358 ms |
71276 KB |
Output is correct |