Compilare: main.cpp: In function 'void getseg(int)': main.cpp:146:9: warning: variable 'l' set but not used [-Wunused-but-set-variable] 146 | int l=1; | ^ main.cpp:147:9: warning: variable 'r' set but not used [-Wunused-but-set-variable] 147 | int r=x-1; | ^ main.cpp: In function 'void build()': main.cpp:190:14: warning: variable 'ok' set but not used [-Wunused-but-set-variable] 190 | bool ok=0; | ^~