Compilare: user.cpp: In function ‘int main()’: user.cpp:71:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&n,&q); ^ user.cpp:74:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&arr[i]); ^ user.cpp:81:85: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d %d %lld %d %lld %d %lld %d " ,&x,&y,&z,&t1,&p1,&t2,&p2,&t3,&p3); ^