Compilare: user.cpp: In function ‘bool Verif(int)’: user.cpp:76:9: warning: unused variable ‘x’ [-Wunused-variable] int x; ^ user.cpp: In function ‘int main()’: user.cpp:23:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "lumanari.in", "r", stdin ); ^ user.cpp:24:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "lumanari.out", "w", stdout ); ^ user.cpp: In function ‘void Next()’: user.cpp:70:53: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] std::fread( read, 1, MAXREAD, stdin ), p = 0; ^