Compilare: user.cpp: In function ‘int main()’: user.cpp:81:52: warning: operation on ‘pos’ may be undefined [-Wsequence-point] tati[++pos]=fold[tati[pos-1]].t; ^ user.cpp:105:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<strlen(fold[i].cuv[j]);k++) ^ user.cpp:63:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("dir.in","r",stdin); ^ user.cpp:64:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("dir.out","w",stdout); ^ user.cpp:65:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",text+1); ^