Compilare: user.cpp: In function ‘void rezolv(char*, int)’: user.cpp:32:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(w[i]=='x') ^ user.cpp: In function ‘int main()’: user.cpp:48:16: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] ss[q-s]=NULL; ^ user.cpp:43:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &w); ^ user.cpp:45:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%s", s); ^