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Copy pathD.cpp
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78 lines (78 loc) · 1.67 KB
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#include<bits/stdc++.h>
#define vi vector<int>
#define ma map<int,int>
#define uma unordered_map <int,int>
#define ll long long int
#define pb push_back
#define mod 1000000007
#define int long long
#define loop(i,x,n) for(int i=x;i<n;i++)
#define rloop(i,n) for(int i=n-1;i>=0;i--)
#define test int t;cin>>t; while(t--)
#define mp make_pair
#define pr pair<int,int>
using namespace std;
/*************************************************************************************************/
vector<char> v[26];
int vis[27];
void dfs(int n)
{
vis[n]=1;
for(auto child:v[n])
{
if(vis[child-'a']==0)
dfs(child-'a');
}
}
signed main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
int n;
cin>>n;
string a[n];
loop(i,0,n)
cin>>a[i];
loop(i,0,n)
{
string s=a[i];
int k=s[0]-'a';
for(int j=1;j<s.length();j++)
{
bool b=true;
for(auto it:v[k])
{
if(it==s[j])
{
b=false;
break;
}
}
if(b)
{
v[k].pb(s[j]);
v[s[j]-'a'].pb(s[0]);
}
}
v[k].pb(s[0]);
}
// for(int i=0;i<26;i++)
// {
// cout<<i<<" : ";
// for(auto it:v[i])
// cout<<it<<' ';
// cout<<endl;
// }
int cc=0;
for(int i=0;i<26;i++)
{
if(vis[i]==0 && v[i].size()!=0)
{
dfs(i);
cc++;
}
}
cout<<cc;
return 0;
}