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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. typedef long long iint;
  4.  
  5. int main() {
  6.     string s;
  7.     cin >> s;
  8.     string tmp = "";
  9.     int streak = 0;
  10.     int maxstreak = 0;
  11.     for (char c : s) {
  12.         if (tmp == "") {
  13.             tmp += c;
  14.             streak++;
  15.             maxstreak = max(streak, maxstreak);
  16.         } else {
  17.             string temp = string(1, c);
  18.             if (temp == tmp) {
  19.                 streak++;
  20.                 tmp = temp;
  21.                 maxstreak = max(streak, maxstreak);
  22.             } else {
  23.                 streak = 1; 
  24.                 tmp = temp;
  25.             }
  26.  
  27.         }
  28.     }
  29.     cout << maxstreak;
  30. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
AAAAAAAAAA
stdout 
10
https://ideone.com/6vCbhI
language:
C++14 (gcc 8.3)
created:
3 hours ago
visibility:
public

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