Compilare: main.cpp: In function 'int ciur()': main.cpp:18:19: warning: no return statement in function returning non-void [-Wreturn-type] prim.push_back(i);} ^ main.cpp: In function 'int main()': main.cpp:20:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("overpower.in","r",stdin); ^ main.cpp:21:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("overpower.out","w",stdout); ^ main.cpp:24:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ main.cpp:27:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&a,&b); ^