Compilare: main.cpp: In member function 'void Matrix::afis()': main.cpp:55:26: warning: format '%d' expects argument of type 'int', but argument 2 has type '__gnu_cxx::__alloc_traits<std::allocator<long long int> >::value_type {aka long long int}' [-Wformat=] printf("%d ",M[i][j] ); ^ main.cpp: In function 'int main()': main.cpp:101:36: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=] printf("%d",lgpow(3,k - 1) ); ^ main.cpp:114:52: warning: format '%lli' expects argument of type 'long long int', but argument 2 has type 'int' [-Wformat=] printf("%lli\n",(f0 * logPow(l,p - 1) ).get(0,0) ); ^ main.cpp:97:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("2sah.in","r",stdin); ^ main.cpp:98:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("2sah.out","w",stdout); ^ main.cpp:99:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d",&cer,&n,&k); ^