dna.cpp: In function 'void init(std::string, std::string)':
dna.cpp:14:7: error: 's' was not declared in this scope
14 | if (s[i] == 'A')
| ^
dna.cpp:16:8: error: 't' was not declared in this scope
16 | if (t[i] == 'T')
| ^
dna.cpp:18:8: error: 't' was not declared in this scope
18 | if (t[i] == 'C')
| ^
dna.cpp:21:7: error: 's' was not declared in this scope
21 | if (s[i] == 'T')
| ^
dna.cpp:23:8: error: 't' was not declared in this scope
23 | if (t[i] == 'A')
| ^
dna.cpp:25:8: error: 't' was not declared in this scope
25 | if (t[i] == 'C')
| ^
dna.cpp:28:7: error: 's' was not declared in this scope
28 | if (s[i] == 'C')
| ^
dna.cpp:30:8: error: 't' was not declared in this scope
30 | if (t[i] == 'A')
| ^
dna.cpp:32:8: error: 't' was not declared in this scope
32 | if (t[i] == 'T')
| ^