Compilare: user.cpp: In function 'void APM()': user.cpp:35: warning: comparison between signed and unsigned integer expressions user.cpp:38: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void BuildTreeWith1()': user.cpp:51: warning: comparison between signed and unsigned integer expressions user.cpp:54: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void FindOtherEdges()': user.cpp:64: warning: comparison between signed and unsigned integer expressions user.cpp:64: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:88: warning: comparison between signed and unsigned integer expressions