Compilare: main.cpp: In function 'int main()': main.cpp:63:23: warning: 'sol' may be used uninitialized [-Wmaybe-uninitialized] 63 | strcat(sol, std::to_string(sol_cpu).c_str()); | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:42:15: note: 'sol' was declared here 42 | char *sol; | ^~~