furtuna.cpp: In function 'void bfs(int, int)': furtuna.cpp:33: warning: comparison between signed and unsigned integer expressions furtuna.cpp: In function 'int dfs(int, int, int)': furtuna.cpp:50: warning: comparison between signed and unsigned integer expressions furtuna.cpp: In function 'int verif(int)': furtuna.cpp:83: warning: name lookup of 'i' changed furtuna.cpp:16: warning: matches this 'i' under ISO standard rules furtuna.cpp:63: warning: matches this 'i' under old rules