Borderou de evaluare (job #400115)

Compilare: user.cpp: In function ‘void citire()’: user.cpp:25:9: warning: unused variable ‘i’ [-Wunused-variable] user.cpp: In function ‘void dfs(int)’: user.cpp:51:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘void cazanelu(int)’: user.cpp:77:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘int main()’: user.cpp:131:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:141:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:150:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:179:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]