771. The longest consecutive character in a string

subject

Find the longest consecutive character in a string , Output the character and its occurrence times , There are no white space characters in the string （ Space 、 Return and tab）, If there is more than one such character , Then the first one is output .

Input format
Enter the integer in the first line N, Number of groups representing test data .

Each group of data occupies one row , Contains a string that does not contain white space characters , The string length does not exceed 200.

Output format
All in one line , Output the longest consecutive characters and their occurrences , Space separates the middle .

sample input ：
2
aaaaabbbbbcccccccdddddddddd
abcdefghigk
sample output ：
d 10
a 1

Code

#include <iostream>

using namespace std;

int main()
{
    
    int n;
    cin >> n;
    
    while (n--)
    {
    
        string s;
        cin >> s;
        
        char ch;
        int cnt = 0;
        for(int i = 0; s[i]; i++)
        {
    
            int j = i;
            while(j < s.size() && s[i] == s[j]) j++;
            if(cnt < j-i) cnt = j-i, ch = s[i];
            i = j-1;
        }
        cout << ch << ' ' << cnt << endl;
    }
    
    return 0;
}