Compilare: main.cpp: In function 'bool ok(long long int)': main.cpp:108:6: warning: unused variable 'cnt' [-Wunused-variable] 108 | ll cnt = 0, len = 2 * k + 1, l1, r1; | ^~~ main.cpp:108:15: warning: unused variable 'len' [-Wunused-variable] 108 | ll cnt = 0, len = 2 * k + 1, l1, r1; | ^~~ main.cpp:108:32: warning: unused variable 'l1' [-Wunused-variable] 108 | ll cnt = 0, len = 2 * k + 1, l1, r1; | ^~ main.cpp:108:36: warning: unused variable 'r1' [-Wunused-variable] 108 | ll cnt = 0, len = 2 * k + 1, l1, r1; | ^~