Compilare: user.cpp: In function ‘int main()’: user.cpp:10:64: warning: unused variable ‘x’ [-Wunused-variable] int i,sum=-1,smax=-2000000000,smax2=2000000000,ii,jj,aux,n,x,semn,ii2,jj2,sumtot=0; ^ user.cpp:11:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:14:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&v[i],&semn); ^ user.cpp:61:17: warning: ‘jj2’ may be used uninitialized in this function [-Wmaybe-uninitialized] ii=jj2+1; ^ user.cpp:62:15: warning: ‘ii2’ may be used uninitialized in this function [-Wmaybe-uninitialized] jj=ii2+jj2-1; ^