Compilare: main.cpp: In function 'void Read()': main.cpp:36:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d" , &p, &n); ^ main.cpp:39:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d" , &x , &k); ^ main.cpp: In function 'int main()': main.cpp:51:26: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen(in,"r",stdin); ^ main.cpp:52:28: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen(out,"w",stdout); ^ main.cpp: In function 'void Ciur()': main.cpp:26:18: warning: iteration 500005 invokes undefined behavior [-Waggressive-loop-optimizations] if(!v[i].lg) ~~~~~^~ main.cpp:25:19: note: within this loop for(i = 3 ; i <= l ; i += 2) ^