Compilare: main.cpp: In function 'int main()': main.cpp:52:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int j = 0; j < graph[node].size(); j++ ){ ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:9:22: warning: this 'for' clause does not guard... [-Wmisleading-indentation] #define FOR(i, a, b) for( i = a; i <= b; i++ ) ^ main.cpp:72:9: note: in expansion of macro 'FOR' FOR( st, 1, N ); ^~~ main.cpp:73:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' dp[i][st] = inf; ^~ main.cpp:80:75: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if ( new_node != node && ( st >> ( new_node - 1 ) & 1 == 0 ) ){ ~~^~~~ main.cpp:73:23: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized] dp[i][st] = inf; ^