Compilare: user.cpp: In function ‘int main()’: user.cpp:27:28: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%ld %ld", &n, &m); ^ user.cpp:27:28: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 3 has type ‘long long int*’ [-Wformat=] user.cpp:31:34: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%ld", &a[i][j]); ^ user.cpp:27:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld %ld", &n, &m); ^ user.cpp:31:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld", &a[i][j]); ^