Compilare: user.cpp:29:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:23: warning: unknown conversion type character 0x20 in format user.cpp:23: warning: conversion lacks type at end of format user.cpp:23: warning: too many arguments for format user.cpp:26: warning: conversion lacks type at end of format user.cpp:26: warning: too many arguments for format