password.cpp: In function 'std::string guess(long long int, long long int)':
password.cpp:9:18: error: 'i' was not declared in this scope
9 | for(int j=1; i<=s; j++){
| ^
password.cpp:10:12: error: 'query' was not declared in this scope
10 | if(query(a)==1)c.push_back(a);
| ^~~~~
password.cpp:13:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
13 | for(int j=0; j<c.size(); j++){
| ~^~~~~~~~~
password.cpp:15:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
15 | for(int i=0; i<c.size(); i++){
| ~^~~~~~~~~
password.cpp:17:20: error: 'query' was not declared in this scope
17 | if(query(c[i]+c[j])==2)cnt++;
| ^~~~~
password.cpp:21:1: warning: no return statement in function returning non-void [-Wreturn-type]
21 | }
| ^