Compilare: user.cpp: In function ‘void scadere(int*, int*)’: user.cpp:83:13: warning: unused variable ‘i’ [-Wunused-variable] int t=0,i; ^ user.cpp: In function ‘int main()’: user.cpp:114:9: warning: unused variable ‘nr’ [-Wunused-variable] int nr=0; ^ user.cpp:101:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sqrt.in","r",stdin); ^ user.cpp:102:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sqrt.out","w",stdout); ^ user.cpp:103:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^