C++ 代码
#include <iostream>
#include <string>
using namespace std;
int main(){
int n;
cin >> n;
while(n--){
string s;
cin >> s;
int cnt = 1, res = 0,len = s.size(),max = 1;
for(int i = 1; i < len ; i ++){
if(s[i] == s[i - 1]) {
cnt ++;
if(cnt > max){
max = cnt;
res = i;
}
}
else cnt = 1;
}
cout << s[res] << " " << max << endl;
}
}