Compilare: main.cpp: In function 'bool bfs(int)': main.cpp:32:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void bfs1()': main.cpp:54:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void flux()': main.cpp:91:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[n].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:120:21: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if(viz[x]==1&&viz1[y]==1||viz1[x]==1&&viz[y]==1) ~~~~~~~~~^~~~~~~~~~~~ main.cpp:124:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<sol.size();i++) ~^~~~~~~~~~~