Compilare: user.cpp: In function ‘int main()’: user.cpp:42:30: warning: narrowing conversion of ‘a’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] G[1].push_back({a, b}); ^ user.cpp:42:30: warning: narrowing conversion of ‘b’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:48:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(k = 0; k < G[j].size(); k++) { ^ user.cpp:33:30: warning: unused variable ‘c’ [-Wunused-variable] int i, j, k, n, m, a, b, c, initNG; ^