In file included from /usr/include/c++/3.2.2/backward/iostream.h:31, from tunel.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. tunel.cpp: In function `int main()': tunel.cpp:5: `v' undeclared (first use this function) tunel.cpp:5: (Each undeclared identifier is reported only once for each function it appears in.) tunel.cpp:5: parse error before `=' token tunel.cpp:8:37: missing terminating ' character tunel.cpp:8: parse error before ';' tunel.cpp:10: `j' undeclared (first use this function) tunel.cpp:12: `particip' undeclared (first use this function) tunel.cpp:19: `judet' undeclared (first use this function) tunel.cpp:20: `nr_jud' undeclared (first use this function) tunel.cpp:22: `max' undeclared (first use this function) tunel.cpp:25: `inter' undeclared (first use this function)