Compilare: user.cpp: In function ‘int main()’: user.cpp:37:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &t); ^ user.cpp: In function ‘void solve()’: 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:17:29: 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: In function ‘int main()’: user.cpp:22:12: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(x % j > 0) ^ user.cpp:13:10: note: ‘x’ was declared here int n, x, ap, sol = 0; ^