View Compilation Error

0_0_39849048_28382.cpp: In function 'int main()':
0_0_39849048_28382.cpp:90:13: error: redeclaration of 'int T'
   90 |         int T=-1;
      |             ^
0_0_39849048_28382.cpp:89:13: note: 'int T' previously declared here
   89 |         int T=-1;
      |             ^