Compilare: user.cpp: In function ‘int main()’: user.cpp:38:14: warning: unused variable ‘x’ [-Wunused-variable] long int x,y,diff,sh; ^ user.cpp:38:16: warning: unused variable ‘y’ [-Wunused-variable] long int x,y,diff,sh; ^ user.cpp:38:18: warning: unused variable ‘diff’ [-Wunused-variable] long int x,y,diff,sh; ^ user.cpp:38:23: warning: unused variable ‘sh’ [-Wunused-variable] long int x,y,diff,sh; ^ user.cpp:16:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("saracsaurege.in","r",stdin); ^ user.cpp:17:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("saracsaurege.out","w",stdout); ^ user.cpp:21:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld %ld",&n,&m); ^ user.cpp:24:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld ",&rmq[0][i]); ^