Compilare: user.cpp: In function ‘int main()’: user.cpp:14:30: warning: conversion lacks type at end of format [-Wformat=] fscanf(fin,"%l%l\n",&n,&k); ^ user.cpp:14:30: warning: unknown conversion type character 0xa in format [-Wformat=] user.cpp:14:30: warning: too many arguments for format [-Wformat-extra-args] user.cpp:14:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%l%l\n",&n,&k); ^ user.cpp:15:22: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s,nmax,fin); ^