Compilare: user.cpp:14:7: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] main() ^ user.cpp: In function ‘int main()’: user.cpp:21:9: warning: unused variable ‘locST’ [-Wunused-variable] int locST, locDR, x , w; ^ user.cpp:21:16: warning: unused variable ‘locDR’ [-Wunused-variable] int locST, locDR, x , w; ^ user.cpp:16:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("balanta.in","r",stdin); ^ user.cpp:93:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("balanta.out","w",stdout); ^