Compilare: main.cpp: In function 'int main()': main.cpp:18:28: warning: NULL used in arithmetic [-Wpointer-arith] 18 | for(int i=0; s[i]!=NULL; i++) | ^~~~ main.cpp:23:28: warning: NULL used in arithmetic [-Wpointer-arith] 23 | for(int i=0; t[i]!=NULL; i++) | ^~~~ main.cpp:34:18: warning: iteration 128 invokes undefined behavior [-Waggressive-loop-optimizations] 34 | a1[i]=0; | ~~~~~^~ main.cpp:28:23: note: within this loop 28 | for(int i=0; i<=128; i++) | ~^~~~~