Compilare: user.cpp: In function ‘double ch(int, point*)’: user.cpp:40:9: warning: unused variable ‘cnt’ [-Wunused-variable] int cnt; ^ user.cpp:41:11: warning: unused variable ‘st’ [-Wunused-variable] point st[255],st1[255],st2[255],v[255]; ^ user.cpp: In function ‘void build(point*, point*, char*)’: user.cpp:100:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp: In function ‘int main()’: user.cpp:148:12: warning: unused variable ‘n1’ [-Wunused-variable] {int i,j,n,n1=0,n2=0,ii,jj; ^ user.cpp:148:17: warning: unused variable ‘n2’ [-Wunused-variable] {int i,j,n,n1=0,n2=0,ii,jj; ^ user.cpp:148:22: warning: unused variable ‘ii’ [-Wunused-variable] {int i,j,n,n1=0,n2=0,ii,jj; ^ user.cpp:148:25: warning: unused variable ‘jj’ [-Wunused-variable] {int i,j,n,n1=0,n2=0,ii,jj; ^ user.cpp:150:6: warning: unused variable ‘c’ [-Wunused-variable] char c[255],bst[255]; ^ user.cpp:150:13: warning: unused variable ‘bst’ [-Wunused-variable] char c[255],bst[255]; ^ user.cpp:151:8: warning: unused variable ‘a1’ [-Wunused-variable] double a1,a2,mini; ^ user.cpp:151:11: warning: unused variable ‘a2’ [-Wunused-variable] double a1,a2,mini; ^