Compilare: user.cpp: In function ‘int main()’: user.cpp:11:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n); ^ user.cpp:13:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &v[i]); ^ user.cpp:19:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &x[i]); ^ user.cpp:52:44: warning: ‘va1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(max-v[i]<val2 && l[v[i]]==0 && v[i]!=va1) { ^