drumuri2.cpp: In function `void DFS(int)': drumuri2.cpp:30: warning: comparison between signed and unsigned integer expressions drumuri2.cpp: In function `void DFSt(int)': drumuri2.cpp:38: warning: comparison between signed and unsigned integer expressions drumuri2.cpp: In function `void DF(int)': drumuri2.cpp:43: warning: comparison between signed and unsigned integer expressions drumuri2.cpp: In function `void sortaret()': drumuri2.cpp:68: warning: comparison between signed and unsigned integer expressions drumuri2.cpp:50: warning: unused variable `int j' drumuri2.cpp: In function `int main()': drumuri2.cpp:103: warning: comparison between signed and unsigned integer expressions drumuri2.cpp:106: warning: comparison between signed and unsigned integer expressions drumuri2.cpp:127: warning: comparison between signed and unsigned integer expressions