Submission #2249239

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Source Code Expand

#include<iostream>
#include<cstring>
#include<string>
using namespace std;
int n,a[27],m[27];
int main()
{
    ios::sync_with_stdio(false);
    cin>>n;
    memset(m,0x3f,sizeof(m));
    for(int i=1;i<=n;i++)
    {
        memset(a,0,sizeof(a));
        string s;
        cin>>s;
        for(int j=0;j<s.length();j++)
            a[s[j]-'a'+1]++;
        for(int j=1;j<=26;j++)
            m[j]=min(m[j],a[j]);
    }
    for(int i=1;i<=26;i++)
        for(int j=1;j<=m[i];j++)
            cout<<char(i+'a'-1);
    cout<<endl;
    return 0;
}

Submission Info

Judge Result