Compilare: main.cpp: In function 'int main()': main.cpp:22:32: warning: NULL used in arithmetic [-Wpointer-arith] 22 | for(int i=0; s[i]!=NULL; i++) | ^~~~ main.cpp:38:34: warning: NULL used in arithmetic [-Wpointer-arith] 38 | for(int i=0; rep[i]!=NULL; i++) | ^~~~ main.cpp:47:19: warning: 'char* strcpy(char*, const char*)' accessing 1 byte at offsets 0 and [0, 2001] may overlap 1 byte at offset 0 [-Wrestrict] 47 | strcpy(rep, rep+k); | ~~~~~~^~~~~~~~~~~~