dna.cpp: In function 'int get_distance(int, int)':
dna.cpp:14:14: warning: control reaches end of non-void function [-Wreturn-type]
14 | string b=B;string a=A;
| ^
dna.cpp:35:29: warning: 'bc' may be used uninitialized in this function [-Wmaybe-uninitialized]
35 | if(aa!=ba or at!=bt or ac!=bc)return -1;
| ~~~~~~~~~~~~~~~~~^~~~~~~~~
dna.cpp:35:24: warning: 'bt' may be used uninitialized in this function [-Wmaybe-uninitialized]
35 | if(aa!=ba or at!=bt or ac!=bc)return -1;
| ~~^~~~
dna.cpp:35:14: warning: 'ba' may be used uninitialized in this function [-Wmaybe-uninitialized]
35 | if(aa!=ba or at!=bt or ac!=bc)return -1;
| ~~^~~~
dna.cpp:35:29: warning: 'ac' may be used uninitialized in this function [-Wmaybe-uninitialized]
35 | if(aa!=ba or at!=bt or ac!=bc)return -1;
| ~~~~~~~~~~~~~~~~~^~~~~~~~~
dna.cpp:35:24: warning: 'at' may be used uninitialized in this function [-Wmaybe-uninitialized]
35 | if(aa!=ba or at!=bt or ac!=bc)return -1;
| ~~^~~~
dna.cpp:35:14: warning: 'aa' may be used uninitialized in this function [-Wmaybe-uninitialized]
35 | if(aa!=ba or at!=bt or ac!=bc)return -1;
| ~~^~~~