Compilare: user.cpp: In function 'long int solve()': user.cpp:41: warning: unused variable 'x' user.cpp: In function 'void afis()': user.cpp:61: warning: format '%ld' expects type 'long int', but argument 3 has type 'int' user.cpp: In function 'long int solve()': user.cpp:57: warning: control reaches end of non-void function user.cpp: In function 'int cauta_primul_rosu()': user.cpp:24: warning: control reaches end of non-void function