Compilare: user.cpp: In function ‘int main()’: user.cpp:29:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&N,&X); ^ user.cpp:31:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^ user.cpp: In function ‘int Search(int)’: user.cpp:12:23: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] int lw=1,hi=N,mid,last; ^ user.cpp: In function ‘int main()’: user.cpp:34:28: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] Out+=Search(v[i]+X)+1-i; ^