Compilare: user.cpp: In function ‘int gr1()’: user.cpp:18:22: warning: unused variable ‘q’ [-Wunused-variable] int semn=1,x=0,j,q,rr; ^ user.cpp: In function ‘int gr2()’: user.cpp:49:13: warning: unused variable ‘r1’ [-Wunused-variable] float q,r1,r2,x,y; ^ user.cpp:49:16: warning: unused variable ‘r2’ [-Wunused-variable] float q,r1,r2,x,y; ^ user.cpp: In function ‘int gr1()’: user.cpp:39:9: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized] r=(c-b)/a; ^ user.cpp:39:14: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized] r=(c-b)/a; ^ user.cpp: In function ‘int gr2()’: user.cpp:75:9: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] c-=d; ^ user.cpp:77:10: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized] x=(-b+sqrt(q))/(2*a); ^ user.cpp:76:12: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized] q=b*b-4*a*c; ^