Compilare: user.cpp: In function ‘int main()’: user.cpp:39:23: warning: conversion lacks type at end of format [-Wformat=] fscanf(fi,"%ll",&p); ^ user.cpp:39:23: warning: too many arguments for format [-Wformat-extra-args] user.cpp:39:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%ll",&p); ^