View Compilation Error

0_0_37226455_5238.cpp: In function 'int main()':
0_0_37226455_5238.cpp:47:14: error: redeclaration of 'int a'
          int a = find(a), b = find(b);
              ^
0_0_37226455_5238.cpp:45:14: note: 'int a' previously declared here
          int a, b;
              ^
0_0_37226455_5238.cpp:47:27: error: redeclaration of 'int b'
          int a = find(a), b = find(b);
                           ^
0_0_37226455_5238.cpp:45:17: note: 'int b' previously declared here
          int a, b;
                 ^