Eroare de compilare: In file included from /usr/include/c++/4.8/cstdio:42:0, from user.cpp:1: user.cpp: In function ‘int main()’: user.cpp:23:22: error: expected ‘)’ before ‘stdout’ freopen(out, "w" stdout); ^ user.cpp:23:28: error: too few arguments to function ‘FILE* freopen(const char*, const char*, FILE*)’ freopen(out, "w" stdout); ^ In file included from /usr/include/c++/4.8/cstdio:42:0, from user.cpp:1: /usr/include/stdio.h:279:14: note: declared here extern FILE *freopen (__const char *__restrict __filename, ^ user.cpp:22:28: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(in, "r", stdin); ^ user.cpp:24:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:27:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^