Submission #1124091

#	Time	Username	Problem	Language	Result	Execution time	Memory
1124091		ezzzay	Trener (COCI20_trener)	C++20	110 / 110	190 ms	16340 KiB

trener

#include<bits/stdc++.h>
using namespace std;
map<string,long long int>ma;
map<string,long long int>::iterator it;
int main(){
    int a,b,mod=1e9+7,ans=0;
    string g;
    cin>>a>>b;
    for(int i=0;i<b;i++){
        cin>>g;
        ma[g]+=1;
    }
    for(int i=2;i<=a;i++){
        for(int h=0;h<b;h++){
            cin>>g;
                string temp1=g.substr(0,i-1),temp2=g.substr(1,i-1);
                if(temp1==temp2) ma[g]+=ma[temp1];
                else ma[g]+=ma[temp1]+ma[temp2];
                ma[g]%=mod;
        }
    }
    for(it=ma.begin();it!=ma.end();it++){
        if(it->first.size()==a){
            ans+=it->second;
            ans%=mod;
        }
    }
    cout<<ans;
}

• Subtask 1: 22 / 22
• Subtask 2: 33 / 33
• Subtask 3: 55 / 55