Compilare: main.cpp: In function 'bool bfs(int, int)': main.cpp:23:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i =0; i < g[node].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int edmond_karp(int, int)': main.cpp:42:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i =0; i < g[finish].size(); i++) ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:78:15: warning: unused variable 'i' [-Wunused-variable] int n, m, i, a, b, c; ^