Compilare: user.cpp: In function ‘int main()’: user.cpp:43: warning: unused variable ‘o’ user.cpp:46: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:53: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int niveluri(int)’: user.cpp:39: warning: control reaches end of non-void function user.cpp: In function ‘int main()’: user.cpp:109: warning: ‘de_unde_vin’ may be used uninitialized in this function user.cpp:109: warning: ‘linie’ may be used uninitialized in this function user.cpp:109: warning: ‘coloana’ may be used uninitialized in this function