Compilare: main.cpp: In function 'int main()': main.cpp:88:9: warning: unused variable 'goleft' [-Wunused-variable] int goleft,goright; ^~~~~~ main.cpp:88:16: warning: unused variable 'goright' [-Wunused-variable] int goleft,goright; ^~~~~~~ main.cpp:29:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("piruete.in","r",stdin); ^ main.cpp:30:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("piruete.out","w",stdout); ^ main.cpp:32:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&t,&n,&k); ^