#include<bits/stdc++.h>
#define space <<' '<<
#define endl '\n'
#define inf 1e14
#define F first
#define S second
#define PB push_back
#define PF push_front
#define md(a) ((a+mod)%mod)
#define MP(a,b) make_pair(a,b)
#define MT(a,b,c) make_tuple(a,b,c)
typedef long long ll;
using namespace std;
template<typename t> using heap=
priority_queue<t,vector<t>,greater<t>>;
const int mx = 4e3+5;
deque<pair<int,int>> b;
deque<pair<int,int>> g;
char state[mx][mx];
bool seen[mx][mx];
int h,w;
bool c(int i,int j,char s){
if(i<0||h<=i) return 1;
if(j<0||w<=j) return 1;
if(seen[i][j])return 1;
if(state[i][j]==s){
g.push_front(MP(i,j));
return 1;
}
if (state[i][j]=='.')
return 1;
return 0;
}
int main(){
std::ios::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
cin>>h>>w;
for(int i=0;i<h;i++)
for(int j=0;j<w;j++)
cin>>state[i][j];
int cnt=0;
g.PB(MP(h-1,w-1));
char cc=state[h-1][w-1];
while((!g.empty())||(!b.empty())){
cnt++;
while(!b.empty()){
auto p=b.back();
b.pop_back();
c(p.F+1,p.S,cc);
c(p.F-1,p.S,cc);
c(p.F,p.S+1,cc);
c(p.F,p.S-1,cc);
}
while(!g.empty()){
auto p=g.back();
g.pop_back();
bool k=1;
seen[p.F][p.S]=1;
k&=c(p.F+1,p.S,cc);
k&=c(p.F-1,p.S,cc);
k&=c(p.F,p.S+1,cc);
k&=c(p.F,p.S-1,cc);
if(!k)
b.push_front(p);
}
cc=((cc=='F')?'R':'F');
}
cout<<cnt;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1978 ms |
1048576 KB |
Execution killed with signal 9 |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1882 ms |
77384 KB |
Output is correct |
4 |
Execution timed out |
2102 ms |
962644 KB |
Time limit exceeded |
5 |
Execution timed out |
2077 ms |
462696 KB |
Time limit exceeded |
6 |
Correct |
1 ms |
2392 KB |
Output is correct |
7 |
Correct |
1850 ms |
79404 KB |
Output is correct |
8 |
Execution timed out |
2095 ms |
967720 KB |
Time limit exceeded |
9 |
Correct |
8 ms |
2908 KB |
Output is correct |
10 |
Execution timed out |
2078 ms |
1048576 KB |
Time limit exceeded |
11 |
Execution timed out |
2101 ms |
1002600 KB |
Time limit exceeded |
12 |
Runtime error |
1989 ms |
1048576 KB |
Execution killed with signal 9 |
13 |
Execution timed out |
2101 ms |
514060 KB |
Time limit exceeded |
14 |
Execution timed out |
2069 ms |
501800 KB |
Time limit exceeded |
15 |
Execution timed out |
2102 ms |
813128 KB |
Time limit exceeded |
16 |
Runtime error |
1996 ms |
1048576 KB |
Execution killed with signal 9 |
17 |
Execution timed out |
2075 ms |
966120 KB |
Time limit exceeded |
18 |
Execution timed out |
2091 ms |
1001592 KB |
Time limit exceeded |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
31068 KB |
Output is correct |
2 |
Execution timed out |
2128 ms |
974008 KB |
Time limit exceeded |
3 |
Execution timed out |
2095 ms |
319208 KB |
Time limit exceeded |
4 |
Execution timed out |
2053 ms |
355664 KB |
Time limit exceeded |
5 |
Correct |
219 ms |
33868 KB |
Output is correct |
6 |
Execution timed out |
2074 ms |
789904 KB |
Time limit exceeded |
7 |
Correct |
13 ms |
31832 KB |
Output is correct |
8 |
Correct |
13 ms |
31064 KB |
Output is correct |
9 |
Execution timed out |
2045 ms |
224060 KB |
Time limit exceeded |
10 |
Correct |
1 ms |
2392 KB |
Output is correct |
11 |
Correct |
12 ms |
31412 KB |
Output is correct |
12 |
Correct |
1 ms |
2904 KB |
Output is correct |
13 |
Execution timed out |
2140 ms |
998212 KB |
Time limit exceeded |
14 |
Execution timed out |
2073 ms |
510760 KB |
Time limit exceeded |
15 |
Correct |
22 ms |
10332 KB |
Output is correct |
16 |
Execution timed out |
2057 ms |
565112 KB |
Time limit exceeded |
17 |
Execution timed out |
2047 ms |
404152 KB |
Time limit exceeded |
18 |
Correct |
79 ms |
21192 KB |
Output is correct |
19 |
Execution timed out |
2037 ms |
355536 KB |
Time limit exceeded |
20 |
Execution timed out |
2081 ms |
213176 KB |
Time limit exceeded |
21 |
Execution timed out |
2017 ms |
242340 KB |
Time limit exceeded |
22 |
Correct |
212 ms |
33724 KB |
Output is correct |
23 |
Execution timed out |
2089 ms |
451664 KB |
Time limit exceeded |
24 |
Correct |
158 ms |
34896 KB |
Output is correct |
25 |
Correct |
350 ms |
47400 KB |
Output is correct |
26 |
Execution timed out |
2073 ms |
908416 KB |
Time limit exceeded |
27 |
Execution timed out |
2041 ms |
904404 KB |
Time limit exceeded |
28 |
Execution timed out |
2044 ms |
909972 KB |
Time limit exceeded |
29 |
Execution timed out |
2039 ms |
774372 KB |
Time limit exceeded |
30 |
Execution timed out |
2088 ms |
835160 KB |
Time limit exceeded |
31 |
Execution timed out |
2100 ms |
1033376 KB |
Time limit exceeded |
32 |
Execution timed out |
2097 ms |
746488 KB |
Time limit exceeded |