Compilare: user.cpp: In function ‘int main()’: user.cpp:145:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&n); ^ user.cpp:146:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&v[0]); ^ user.cpp:152:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&x); ^ user.cpp: In function ‘long long unsigned int E()’: user.cpp:78:20: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(j=poz+1; j<cif1; j++){ ^ user.cpp:8:32: note: ‘poz’ was declared here int cif1,cif2,max,con,j,i1,poz,m,t,lung; ^ user.cpp: In function ‘long long unsigned int fact()’: user.cpp:9:5: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a==b) ^ user.cpp:115:24: note: ‘x’ was declared here unsigned long long x; ^ user.cpp:78:20: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(j=poz+1; j<cif1; j++){ ^ user.cpp:8:32: note: ‘poz’ was declared here int cif1,cif2,max,con,j,i1,poz,m,t,lung; ^