Submission #1339470

#	Time	Username	Problem	Language	Result	Execution time	Memory
1339470		po_rag526	Parametriziran (COCI19_parametriziran)	C++17	110 / 110	208 ms	2980 KiB

Main

#include <bits/stdc++.h>

using namespace std;
#define pb push_back
const int MAXN=5e4;

bitset<MAXN> has[6][27];
bitset<MAXN> aux;
bitset<MAXN> correct;
string s1[MAXN];

int main()
{
    int n, m;
    cin>>n>>m;
    long long ans=0;
    for(int i=0; i<n; i++){
        string s;
        cin>>s;
        for(int j=0; j<m; j++){
            if(s[j]!='?')
                s[j]-='a';
            else
                s[j]=26;
            has[j][(int)s[j]][i]=1;
        }
        s1[i]=s;
    }
    aux.set();
    for(int i=0; i<n; i++){
        correct=aux;
        string s=s1[i];
        int ok=1;
        for(int j=0; j<m; j++)
            if(s[j]!=26){
                correct&=(has[j][(int)s[j]]|has[j][26]);
                ok=0;
            }
        if(ok==1)
            ans+=n;
        else
            ans+=correct.count();
    }
    ans-=n;
    ans/=2;
    cout<<ans<<"\n";
    return 0;
}

• Subtask 0: 0 / 0
• Subtask 1: 33 / 33
• Subtask 2: 33 / 33
• Subtask 3: 44 / 44