Compilare: user.cpp: In function ‘void solve(int, int)’: user.cpp:146:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(val==adj2[n2].size()-(t2[n2]>0)) dyn[n1][n2]=1; ^ user.cpp: In function ‘void citeste(int&)’: user.cpp:13:53: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz==DIM) fread(buff,1,DIM,stdin),poz=0; ^ user.cpp:18:53: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz==DIM) fread(buff,1,DIM,stdin),poz=0; ^ user.cpp: In function ‘int main()’: user.cpp:166:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("sakura.in","r",stdin); ^ user.cpp:167:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("sakura.out","w",stdout); ^