View Compilation Error

0_0_37728808_21585.cpp:29:5: error: redefinition of 'int T'
 int T;
     ^
0_0_37728808_21585.cpp:5:5: note: 'int T' previously declared here
 int T;
     ^
0_0_37728808_21585.cpp: In function 'int main()':
0_0_37728808_21585.cpp:30:5: error: redefinition of 'int main()'
 int main()
     ^
0_0_37728808_21585.cpp:6:5: note: 'int main()' previously defined here
 int main()
     ^
0_0_37728808_21585.cpp: At global scope:
0_0_37728808_21585.cpp:55:5: error: redefinition of 'int T'
 int T;
     ^
0_0_37728808_21585.cpp:5:5: note: 'int T' previously declared here
 int T;
     ^
0_0_37728808_21585.cpp: In function 'int main()':
0_0_37728808_21585.cpp:56:5: error: redefinition of 'int main()'
 int main()
     ^
0_0_37728808_21585.cpp:6:5: note: 'int main()' previously defined here
 int main()
     ^