Compilare: user.cpp: In function ‘int main()’: user.cpp:10:22: warning: unused variable ‘j’ [-Wunused-variable] int n, i, End = 0, j, contor; ^ user.cpp:14:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:15:49: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i = 0; i < n; i++)fscanf(fin, "%d", &v[i]); ^