Borderou de evaluare (job #417912)

Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:29:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:35:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:41:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:47:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:53:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:59:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:65:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:71:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:77:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:83:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:89:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:95:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:101:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:107:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:113:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]