Compilare: user.c: In function ‘main’: user.c:12:5: warning: conversion lacks type at end of format [-Wformat=] if(n%2!=0)fprintf(g,"%h",-1); ^ user.c:12:5: warning: too many arguments for format [-Wformat-extra-args] user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.c:15:23: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] { fscanf(f,"%c",&x); ^