Compilare: user.cpp: In function ‘int main()’: user.cpp:31:22: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] printf("%ld\n",nr); ^ user.cpp:35:61: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}’ [-Wformat=] for(j=0;j<nup;++j) printf("%ld %ld ",v[i][j],a[i][j]); ^ user.cpp:35:61: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}’ [-Wformat=] user.cpp:19:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pariuri.in","r",stdin); ^ user.cpp:20:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pariuri.out","w",stdout); ^ user.cpp:21:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:24:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&m); ^ user.cpp:27:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&t,&b); ^