Compilare: main.cpp: In function 'void decode()': main.cpp:35:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for (int i = 0; i < s.size(); ++i) | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:69:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 69 | for (cin >> n >> m; m-- && cin >> x >> y >> s;) | ^~~ main.cpp:71:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 71 | return 0; | ^~~~~~