Compilare: main.cpp: In function 'int main()': main.cpp:20:19: warning: NULL used in arithmetic [-Wpointer-arith] 20 | for(i=0;s[i]!=NULL;) | ^~~~ main.cpp:62:19: warning: NULL used in arithmetic [-Wpointer-arith] 62 | for(i=j;s[i]!=NULL;) | ^~~~ main.cpp:12:21: warning: variable 'egal' set but not used [-Wunused-but-set-variable] 12 | int i,j,nr,semn,egal,k; | ^~~~ main.cpp:62:16: warning: 'j' may be used uninitialized [-Wmaybe-uninitialized] 62 | for(i=j;s[i]!=NULL;) | ~~~^ main.cpp:12:11: note: 'j' was declared here 12 | int i,j,nr,semn,egal,k; | ^