Compilare: main.cpp: In function 'int putlog(int, int)': main.cpp:40:6: warning: statement has no effect [-Wunused-value] x%-mod; ^ main.cpp: In function 'void bfs(int)': main.cpp:58:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<g[node].size(); ++i) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:79:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<g[node].size(); ++i) ~^~~~~~~~~~~~~~~ main.cpp: In function 'int getDP(int)': main.cpp:124:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<g[node].size(); ++i) ~^~~~~~~~~~~~~~~