#include <bits/stdc++.h>
using namespace std;
#define all(x) (x).begin(), (x).end()
typedef long long ll;
typedef unsigned long long int ull;
const ll md = 1e9+7;
const int ukr = 2e5+10;
int read() {
int ketek = 0; bool ne=0;
register char c = getchar();
while(c == ' ' or c =='\n') c =getchar();
if(c=='-'){ne = 1; c = getchar();}
while(c >= '0' and c <='9') { ketek = (ketek<<3)+(ketek<<1)+c-'0'; c = getchar();}
if(ne) ketek*=-1;
return ketek;
}
void print(int x) {
if (x < 0) {putchar('-');x = -x;}
int len = 0, buf[10];
if (x == 0) {putchar('0');return;}
while (x > 0) {buf[len++] = x % 10; x/=10;}
while (len > 0) {putchar('0' + buf[--len]);}
}
void File_Work(){
freopen("test.in","r",stdin);
freopen("test.out","w",stdout);
}
int n, m, a, b, c, d, id;
struct babi{
ll x, y, id;
};
struct babis{
ll x, y;
};
ll gcd(ll a, ll b) {
if (b == 0) return a;
return gcd(b, a % b);
}
ll pgkt(ll rnx, ll rny){
if(rny == 0) return 1;
ll nwrn = pgkt(rnx, rny/2);
if(rny%2){
return (((nwrn*nwrn)%md)*rnx)%md;
}else{
return (nwrn*nwrn)%md;
}
}
vector<int> v;
string s;
void solve(){
cin >> n >> m >> a >> b;
int ar[n+2][m+2];
bool vis[n+2][m+2];
memset(ar, 0, sizeof(ar));
for(int i = 1; i <= n; i++){
for(int j = 1; j <= m; j++){
char f;
vis[i][j] = 0;
cin >> f;
if(f == '.') continue;
if(f == 'M'){
vis[i][j] = 1;
}else{
ar[max(1, i-a)][max(1, j-a)] += 1;
ar[min(n+1, i+a+1)][max(1, j-a)] -= 1;
ar[max(1, i-a)][min(m+1, j+a+1)] -= 1;
ar[min(n+1, i+a+1)][min(m+1, j+a+1)] += 1;
}
}
}
int tot = 0;
for(int i = 1; i <= n; i++){
for(int j = 1; j <= m; j++){
ar[i][j] += ar[i-1][j] + ar[i][j-1] - ar[i-1][j-1];
//cout << ar[i][j] << " ";
if(ar[i][j] >= b && vis[i][j]){
tot++;
}
}
//cout << "\n";
}
cout << tot;
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int t =1;
//cin >> t;
for(int i = 1; i <= t; i++){
//cout << "Case " << i << ": ";
solve();
}
}
Compilation message
mushrooms.cpp: In function 'int read()':
mushrooms.cpp:10:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
10 | register char c = getchar();
| ^
mushrooms.cpp: In function 'void File_Work()':
mushrooms.cpp:25:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
25 | freopen("test.in","r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
mushrooms.cpp:26:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
26 | freopen("test.out","w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1496 KB |
Output is correct |
2 |
Correct |
3 ms |
1628 KB |
Output is correct |
3 |
Correct |
3 ms |
1884 KB |
Output is correct |
4 |
Correct |
3 ms |
1628 KB |
Output is correct |
5 |
Correct |
3 ms |
1628 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
8284 KB |
Output is correct |
2 |
Correct |
9 ms |
8284 KB |
Output is correct |
3 |
Correct |
11 ms |
8028 KB |
Output is correct |
4 |
Correct |
11 ms |
8156 KB |
Output is correct |
5 |
Correct |
10 ms |
8028 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
2 ms |
1496 KB |
Output is correct |
17 |
Correct |
3 ms |
1628 KB |
Output is correct |
18 |
Correct |
3 ms |
1884 KB |
Output is correct |
19 |
Correct |
3 ms |
1628 KB |
Output is correct |
20 |
Correct |
3 ms |
1628 KB |
Output is correct |
21 |
Correct |
11 ms |
8284 KB |
Output is correct |
22 |
Correct |
9 ms |
8284 KB |
Output is correct |
23 |
Correct |
11 ms |
8028 KB |
Output is correct |
24 |
Correct |
11 ms |
8156 KB |
Output is correct |
25 |
Correct |
10 ms |
8028 KB |
Output is correct |
26 |
Correct |
10 ms |
3420 KB |
Output is correct |
27 |
Correct |
8 ms |
3420 KB |
Output is correct |
28 |
Correct |
8 ms |
3420 KB |
Output is correct |
29 |
Correct |
8 ms |
3420 KB |
Output is correct |
30 |
Correct |
8 ms |
3368 KB |
Output is correct |