Compilare: user.cpp: In function ‘void citire()’: user.cpp:12:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ^ user.cpp: In function ‘void create_dyn()’: user.cpp:25:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<n;i++) dyn[n][i]=v[n][i]; ^ user.cpp: In function ‘void redefine_v()’: user.cpp:33:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<n;i++) v[n][i]=1; ^ user.cpp: In function ‘int main()’: user.cpp:55:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("summax.in","r",stdin); ^ user.cpp:56:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("summax.out","w",stdout); ^