Compilare: main.cpp: In function 'int main()': main.cpp:97:40: warning: 'sol3.strsol::b' may be used uninitialized [-Wmaybe-uninitialized] 97 | cout << sol3.a << " " << sol3.b << " " << sol3.c << " " << sol3.d; | ^~~ main.cpp:54:10: note: 'sol3.strsol::b' was declared here 54 | strsol sol3; | ^~~~ main.cpp:97:23: warning: 'sol3.strsol::a' may be used uninitialized [-Wmaybe-uninitialized] 97 | cout << sol3.a << " " << sol3.b << " " << sol3.c << " " << sol3.d; | ^~~ main.cpp:54:10: note: 'sol3.strsol::a' was declared here 54 | strsol sol3; | ^~~~ main.cpp:97:69: warning: 'sol3.strsol::d' may be used uninitialized [-Wmaybe-uninitialized] 97 | cout << sol3.a << " " << sol3.b << " " << sol3.c << " " << sol3.d; | ^ main.cpp:54:10: note: 'sol3.strsol::d' was declared here 54 | strsol sol3; | ^~~~ main.cpp:97:57: warning: 'sol3.strsol::c' may be used uninitialized [-Wmaybe-uninitialized] 97 | cout << sol3.a << " " << sol3.b << " " << sol3.c << " " << sol3.d; | ^~~ main.cpp:54:10: note: 'sol3.strsol::c' was declared here 54 | strsol sol3; | ^~~~