Compilare: main.cpp: In function 'void TopoSort(int)': main.cpp:45:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < Ad[nod].size(); ++i ) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void DfsComp(int)': main.cpp:60:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < Ad_r[nod].size(); ++i ) ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void Do()': main.cpp:82:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < Ad[i].size(); ++j ) ~~^~~~~~~~~~~~~~ main.cpp:106:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( grad0_in.size() > minn ) ~~~~~~~~~~~~~~~~^~~~~~ main.cpp:107:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = minn; i < grad0_in.size(); ++i ) ~~^~~~~~~~~~~~~~~~~ main.cpp:110:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = minn; i < grad0_out.size(); ++i ) ~~^~~~~~~~~~~~~~~~~~