Compilare: main.cpp: In function 'int main()': main.cpp:21:32: warning: NULL used in arithmetic [-Wpointer-arith] 21 | for(int i=0; s[i]!=NULL; i++) | ^~~~ main.cpp:25:32: warning: NULL used in arithmetic [-Wpointer-arith] 25 | for(int i=0; t[i]!=NULL; i++) | ^~~~ main.cpp:13:14: warning: unused variable 'c' [-Wunused-variable] 13 | int k=0, c[127]= {0}; | ^ main.cpp:35:22: warning: iteration 127 invokes undefined behavior [-Waggressive-loop-optimizations] 35 | a1[i]=0; | ~~~~~^~ main.cpp:29:27: note: within this loop 29 | for(int i=0; i<=127; i++) | ~^~~~~