#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ft first
#define sd second
#define sz(x) ((int)x.size())
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
const int N = 50100;
const int Z = 28;
gp_hash_table<string, int> mem;
string s[N], t;
int n, m;
ll ans = 0;
int main(){
ios_base::sync_with_stdio(0); cin.tie(0);
#ifdef _LOCAL
freopen("in.txt","r",stdin);
#endif // _LOCAL
cin >> n >> m;
for (int i = 0; i < n; i++){
cin >> s[i];
for (int msk = 0; msk < (1 << m); msk++){
bool bad = 0;
t = "";
for (int j = 0; j < m && !bad; j++)
if (msk & (1 << j)) {
if (s[i][j] == '?')
bad = 1;
else t += "#";
} else t += s[i][j];
if (!bad)
mem[t]++;
}
}
for (int i = 0; i < n; i++){
for (int msk = 0; msk < (1 << m); msk++){
t = "";
for (int j = 0; j < m; j++)
if (msk & (1 << j)) {
if (s[i][j] == '?')
t += "#";
else t += "?";
} else t += s[i][j];
if (mem.find(t) != mem.end())
ans += mem[t];
}
}
cout << (ans - n) / 2;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
16 ms |
1920 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
19 ms |
2048 KB |
Output is correct |
2 |
Correct |
19 ms |
2176 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
24 ms |
2048 KB |
Output is correct |
2 |
Correct |
29 ms |
2108 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
43 ms |
4344 KB |
Output is correct |
2 |
Correct |
36 ms |
3196 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
60 ms |
4344 KB |
Output is correct |
2 |
Correct |
63 ms |
6644 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
206 ms |
20572 KB |
Output is correct |
2 |
Correct |
96 ms |
2624 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
379 ms |
39240 KB |
Output is correct |
2 |
Correct |
130 ms |
3196 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
191 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
170 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
155 ms |
65536 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |