#define LOCAL
#include "bits/stdc++.h"
using namespace std;
#define FAST ios_base::sync_with_stdio(false); cin.tie(0);
#define LLINF ((long long) 1e18)//1234567890987654321
#define INF 1234567890ll
#define pb push_back
#define eb emplace_back
#define ins insert
#define f first
#define s second
#define db 0
#define EPS (1e-7) //0.0000001 the value
#define PI (acos((ld)-1.0))
#define MAXN (50006)
#define ll long long int
#define ld long double
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); //can be used by calling rng() or shuffle(A, A+n, rng)
#define FOR(ii, ss, ee) for(ll ii = ss; ii < (ll)ee; ++ii)
#define space " "
#define cbr cerr << "hi\n"
#define mmst(x, v) memset((x), v, sizeof ((x)))
#define siz(x) ((ll)x.size())
#define ph push
#define btinpct(x) __builtin_popcountll((x))
#define all(x) (x).begin(), (x).end()
#define lbd(x, y) lower_bound(all(x), y)
#define ubd(x, y) upper_bound(all(x), y)
typedef pair <ll, ll> pi;
typedef pair <ll, pi> spi;
typedef pair <pi, pi> dpi;
inline ll rand(ll x, ll y) { ++y; return (rng() % (y-x)) + x; } //inclusivesss
string to_string(char c) {string s(1,c);return s;}string to_string(bool b){return (b ? "true" : "false");}template <typename A, typename B>string to_string(pair<A, B> p) {return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";}template <typename A>string to_string(A v) {bool first = true;string res = "{";for (const auto &x : v) {if (!first) {res += ", ";}first = false;res += to_string(x);}res += "}";return res;}void degug_out() { cerr << endl; }template <typename Head, typename... Tail>void degug_out(Head H, Tail... T) {cerr << " " << to_string(H);degug_out(T...);}inline ll gcd(ll a,ll b){if(a>b)swap(a,b);if(a==0)return b;return gcd(b%a,a);}
#ifdef LOCAL
#define degug(...) cerr << "[" << #__VA_ARGS__ << "]:", degug_out(__VA_ARGS__)
#else
#define degug(...) 42
#define cerr if(0)cout
#endif
ll n,m;
bitset<MAXN>dp[6][27];
string A[MAXN];
int main()
{
FAST
cin>>n>>m;
FOR(i,0,n)cin>>A[i];
FOR(i,0,n){
FOR(j,0,m){
if(A[i][j]=='?'){
FOR(k,0,26)dp[j][k][i]=1;
}
else dp[j][A[i][j]-'a'][i]=1;
}
}
bitset<MAXN>co,rotate; ll ans=0;
FOR(j,0,n)rotate[j]=1;
FOR(i,0,n){
co=rotate;
FOR(j,0,m){
if(A[i][j]=='?')continue;
co&=dp[j][A[i][j]-'a'];
}
// cerr<<i<<": ";FOR(i,0,n)cerr<<co[i];cerr<<endl;
ans+=(co.count()-1);
}
cout<<ans/2;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
167 ms |
2048 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
125 ms |
2280 KB |
Output is correct |
| 2 |
Correct |
106 ms |
2304 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
144 ms |
2332 KB |
Output is correct |
| 2 |
Correct |
192 ms |
2432 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
126 ms |
2432 KB |
Output is correct |
| 2 |
Correct |
113 ms |
2432 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
188 ms |
2432 KB |
Output is correct |
| 2 |
Correct |
90 ms |
2688 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
224 ms |
2560 KB |
Output is correct |
| 2 |
Correct |
147 ms |
2936 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
171 ms |
2776 KB |
Output is correct |
| 2 |
Correct |
112 ms |
2688 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
226 ms |
2808 KB |
Output is correct |
| 2 |
Correct |
205 ms |
3164 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
193 ms |
2816 KB |
Output is correct |
| 2 |
Correct |
124 ms |
3008 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
300 ms |
2972 KB |
Output is correct |
| 2 |
Correct |
225 ms |
3328 KB |
Output is correct |
