Compilare: user.cpp: In function ‘int main()’: user.cpp:33:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf ( fin, "%d%d%d", &n, &m, &p ); ^ user.cpp:36:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf ( fin, "%d%d", &x, &y ); ^ user.cpp:41:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf ( fin, "%d", &b[i] ); ^