Compilare: user.cpp: In function ‘int main()’: user.cpp:7:29: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘int’ [-Wformat=] fscanf(in, "%d %d", a, b); ^ user.cpp:7:29: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘int’ [-Wformat=] user.cpp:7:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", a, b); ^ user.cpp:7:30: warning: ‘a’ is used uninitialized in this function [-Wuninitialized] fscanf(in, "%d %d", a, b); ^ user.cpp:7:30: warning: ‘b’ is used uninitialized in this function [-Wuninitialized]