In file included from /usr/include/c++/3.2.2/backward/fstream.h:31, from nr0.cpp:1: /usr/include/c++/3.2.2/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <sstream> instead of the deprecated header <strstream.h>. To disable this warning use -Wno-deprecated. nr0.cpp: In function `int main()': nr0.cpp:5: `n' undeclared (first use this function) nr0.cpp:5: (Each undeclared identifier is reported only once for each function it appears in.) nr0.cpp:6: `i' undeclared (first use this function) nr0.cpp:7: `a' undeclared (first use this function) nr0.cpp:9: `aux' undeclared (first use this function) nr0.cpp:9: `st' undeclared (first use this function) nr0.cpp:9: `dr' undeclared (first use this function) nr0.cpp:11: `mijl' undeclared (first use this function) nr0.cpp:14: `j' undeclared (first use this function) nr0.cpp:14: `e' undeclared (first use this function) nr0.cpp:23:2: warning: no newline at end of file nr0.cpp:23: parse error at end of input