Compilare: main.cpp: In function 'int main()': main.cpp:43:40: warning: narrowing conversion of 'y' from 'int' to 'short unsigned int' inside { } [-Wnarrowing] edges[x].push_back ( ( Node ) { y, c } ); ^ main.cpp:44:46: warning: narrowing conversion of 'x' from 'int' to 'short unsigned int' inside { } [-Wnarrowing] edges[y].push_back ( ( Node ) { x, c } ); ^ main.cpp:64:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < edges[p].size(); ++i ) { ~~^~~~~~~~~~~~~~~~~