Compilare: user.cpp: In member function ‘void H::print()’: user.cpp:51:34: warning: conversion lacks type at end of format [-Wformat=] printf("%04", c[c[i]]); ^ user.cpp:51:34: warning: too many arguments for format [-Wformat-extra-args] user.cpp: In function ‘int main()’: user.cpp:57:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("aladdin2.in", "r", stdin); ^ user.cpp:58:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("aladdin2.out", "w", stdout); ^ user.cpp:62:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^