Compilare: main.cpp: In function 'void update(int, int, int)': main.cpp:35:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( ; p <= Norm.size(); p += (p & (-p)) ) ~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:89:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < arr[i - 1].size(); j++ ) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:95:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < arr[i].size(); j++ ){ ~~^~~~~~~~~~~~~~~ main.cpp:96:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( p < arr[i - 1].size() && arr[i][j] >= arr[i - 1][p] ){ ~~^~~~~~~~~~~~~~~~~~~ main.cpp:132:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < arr[K].size(); i++ ) ~~^~~~~~~~~~~~~~~