asfalt1.cpp: In function 'void bfs(int, int)': asfalt1.cpp:26: warning: comparison between signed and unsigned integer expressions asfalt1.cpp: In function 'int dfs(int, int, int)': asfalt1.cpp:40: warning: comparison between signed and unsigned integer expressions asfalt1.cpp: In function 'int main()': asfalt1.cpp:72: warning: comparison between signed and unsigned integer expressions asfalt1.cpp:69: warning: unused variable 'cost' asfalt1.cpp:105: warning: comparison between signed and unsigned integer expressions asfalt1.cpp:130: warning: comparison between signed and unsigned integer expressions