Eroare de compilare: user.cpp:1:20: error: fstream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:9: warning: format ‘%d’ expects type ‘int*’, but argument 3 has type ‘long int*’ user.cpp:9: warning: format ‘%d’ expects type ‘int*’, but argument 4 has type ‘long int*’ user.cpp:16: warning: format ‘%d’ expects type ‘int’, but argument 3 has type ‘long int’ user.cpp:9: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result