Compilare: user.cpp: In function ‘int main()’: user.cpp:29:23: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] int nr=(int)(i*x+eps1); ^ user.cpp:42:34: note: ‘sol’ was declared here double st=0+eps,dr=1-eps,mij,sol; ^