Compilare: user.cpp: In function 'void citire()': user.cpp:8: warning: conversion lacks type at end of format user.cpp:8: warning: too many arguments for format user.cpp:9: warning: conversion lacks type at end of format user.cpp:9: warning: too many arguments for format user.cpp: In function 'void afisare()': user.cpp:16: warning: unknown conversion type character 0x20 in format user.cpp:16: warning: conversion lacks type at end of format user.cpp:16: warning: too many arguments for format