Compilare: user.cpp: In function ‘int main()’: user.cpp:60: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:68: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void plus1(int*, int*)’: user.cpp:34: warning: ‘mx’ is used uninitialized in this function user.cpp:21: warning: ‘v3’ may be used uninitialized in this function