View Compilation Error

0_0_31394746_21705.cpp: In function 'int main()':
0_0_31394746_21705.cpp:16:17: error: redeclaration of 'int a'
             int a = find(l);
                 ^
0_0_31394746_21705.cpp:14:24: note: 'int a' previously declared here
         for (int l,r,x,a,b;m--;) {
                        ^
0_0_31394746_21705.cpp:17:17: error: redeclaration of 'int b'
             int b = find(r);
                 ^
0_0_31394746_21705.cpp:14:26: note: 'int b' previously declared here
         for (int l,r,x,a,b;m--;) {
                          ^