Compilare: main.cpp: In function 'bool check(int)': main.cpp:12:16: warning: unused variable 'ok' [-Wunused-variable] static int ok,vv[200001],i,zz,ci,s; ^~ main.cpp:12:35: warning: unused variable 'ci' [-Wunused-variable] static int ok,vv[200001],i,zz,ci,s; ^~ main.cpp:12:38: warning: unused variable 's' [-Wunused-variable] static int ok,vv[200001],i,zz,ci,s; ^ main.cpp: At global scope: main.cpp:12:38: warning: 's' defined but not used [-Wunused-variable] main.cpp:12:35: warning: 'ci' defined but not used [-Wunused-variable] static int ok,vv[200001],i,zz,ci,s; ^~ main.cpp:12:16: warning: 'ok' defined but not used [-Wunused-variable] static int ok,vv[200001],i,zz,ci,s; ^~