Compilare: user.cpp: In function ‘int main()’: user.cpp:6:32: warning: unused variable ‘pp’ [-Wunused-variable] int maxi=0,s=0,n,k,i,l1,l2,pp,m,c=0,cm,mf; ^ user.cpp:7:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("transport.in","r",stdin); ^ user.cpp:8:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("transport.out","w",stdout); ^ user.cpp:42:13: warning: ‘mf’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<mf; ^