Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:21:9: error: ‘i’ was not declared in this scope for(i=1;i<=n;i++) ^ user.cpp:25:27: error: ‘sort’ was not declared in this scope sort(v+1,v+n+1,sortare); ^ user.cpp:18:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trapez.in","r",stdin); ^ user.cpp:19:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trapez.out","w",stdout); ^