Compilare: user.cpp: In function ‘int main()’: user.cpp:36:10: warning: unused variable ‘f’ [-Wunused-variable] FILE*f=freopen("datorii.in","r",stdin); ^ user.cpp:37:10: warning: unused variable ‘g’ [-Wunused-variable] FILE*g=freopen("datorii.out","w",stdout); ^ user.cpp:39:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:42:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ user.cpp:47:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &t, &a, &b); ^