Compilare: user.cpp: In function ‘void read()’: user.cpp:34: warning: conversion lacks type at end of format user.cpp:34: warning: too many arguments for format user.cpp:36: warning: conversion lacks type at end of format user.cpp:36: warning: conversion lacks type at end of format user.cpp:36: warning: conversion lacks type at end of format user.cpp:36: warning: too many arguments for format user.cpp:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void det()’: user.cpp:130: warning: format ‘%d’ expects type ‘int’, but argument 3 has type ‘long int’ user.cpp:130: warning: format ‘%d’ expects type ‘int’, but argument 4 has type ‘long int’