Compilare: user.cpp: In function ‘void cit()’: user.cpp:39: warning: array subscript has type ‘char’ user.cpp: In function ‘void dfs1(int, int)’: user.cpp:52: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void dfs2(int, int, int)’: user.cpp:70: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void rec(int, int)’: user.cpp:86: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘char modif2(int)’: user.cpp:27: warning: control reaches end of non-void function user.cpp: In function ‘int modif(char)’: user.cpp:19: warning: control reaches end of non-void function