Eroare de compilare: user.cpp: In function ‘bool bfs2(int, int)’: user.cpp:61:9: error: ‘nod’ was not declared in this scope if (nod == target) ^ user.cpp: In function ‘int bfs3(int)’: user.cpp:85:9: error: ‘nod’ was not declared in this scope if (nod == N || nod == 1) ^ user.cpp: In function ‘int main()’: user.cpp:122:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < A[N].size(); i++) { ^ user.cpp:135:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0, x, y; i < muchii.size(); i++ ) { ^ user.cpp:146:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < sol.size(); i++) { ^