Compilare: user.cpp: In function ‘int main()’: user.cpp:19:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n+1;i++)BST[i]=oo;BST[0]=-1; ^~~ user.cpp:19:34: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ for(i=1;i<=n+1;i++)BST[i]=oo;BST[0]=-1; ^~~ user.cpp:16:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("blis.in","r",stdin); ^ user.cpp:17:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("blis.out","w",stdout); ^ user.cpp:18:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%s",&k,B+1);n=strlen(B+1); ^