Eroare de compilare: user.cpp: In function ‘void BFS(int)’: user.cpp:36:17: warning: unused variable ‘abc’ [-Wunused-variable] int abc = (*it).first; ^ user.cpp: In function ‘int main()’: user.cpp:85:17: warning: statement has no effect [-Wunused-value] Ham[ 1 ][ 0 ]; ^ user.cpp:91:5: error: ‘ans’ was not declared in this scope ans = INF; ^ user.cpp:93:36: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] ans = min( ans , Ham[ 1<<k - 1 ][ i ] + Cost[ i ][ k + 1 ] ); ^