View Compilation Error

0_0_30301206_6859.cpp: In function 'int main()':
0_0_30301206_6859.cpp:329:13: error: conflicting declaration 'long long int n'
   long long n, t;
             ^
0_0_30301206_6859.cpp:311:7: note: previous declaration as 'int n'
   int n = s.length();
       ^