Compilare: user.cpp: In function ‘int main()’: user.cpp:39:33: warning: variable ‘pi1’ set but not used [-Wunused-but-set-variable] int so1=INT_MIN,si1=0,li1=1,pi1=1,pf1=1,ssm=0,lg; ^ user.cpp:13:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:17:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&v[j],&x); ^ user.cpp:69:14: warning: ‘pf’ may be used uninitialized in this function [-Wmaybe-uninitialized] lg=pf-pi+1; ^