Eroare de compilare: main.cpp: In function 'void que()': main.cpp:23:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<g[nod].size(); i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'void back()': main.cpp:41:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < g[n].size(); i++){ ~~^~~~~~~~~~~~~ main.cpp: In function 'void bfs1()': main.cpp:64:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < g[nod].size(); i++){ ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void bfs2()': main.cpp:77:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < g[nod].size(); i++){ ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:112:11: error: found ':' in nested-name-specifier, expected '::' for(i : sol) ^ main.cpp:112:9: error: 'i' is not a class, namespace, or enumeration for(i : sol) ^ main.cpp:114:5: error: expected primary-expression before 'return' return 0; ^~~~~~ main.cpp:114:5: error: expected ';' before 'return' main.cpp:114:5: error: expected primary-expression before 'return' main.cpp:114:5: error: expected ')' before 'return' Non zero exit status: 1