Compilare: main.cpp: In function 'void adaug(trie*, char*)': main.cpp:25:15: warning: NULL used in arithmetic [-Wpointer-arith] 25 | if(cc[0]==NULL) | ^~~~ main.cpp: In function 'int main()': main.cpp:60:11: warning: unused variable 'un' [-Wunused-variable] 60 | int i,un=0,j,l,x,a,b; | ^~ main.cpp:60:18: warning: unused variable 'l' [-Wunused-variable] 60 | int i,un=0,j,l,x,a,b; | ^ main.cpp:60:24: warning: unused variable 'b' [-Wunused-variable] 60 | int i,un=0,j,l,x,a,b; | ^