Compilare: user.cpp: In function ‘void Solve()’: user.cpp:149:33: warning: variable ‘x’ set but not used [-Wunused-but-set-variable] pair<double,double> x=*it,y=*next(it); ^ user.cpp:149:39: warning: variable ‘y’ set but not used [-Wunused-but-set-variable] pair<double,double> x=*it,y=*next(it); ^ user.cpp:119:13: warning: unused variable ‘nb’ [-Wunused-variable] int nb=0; ^ user.cpp:111:9: warning: unused variable ‘Begin’ [-Wunused-variable] int Begin=1,End=k+1; ^ user.cpp:111:17: warning: unused variable ‘End’ [-Wunused-variable] int Begin=1,End=k+1; ^