Compilare: main.cpp: In function 'int main()': main.cpp:18:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<=strlen(A);i++) ~^~~~~~~~~~~ main.cpp:20:25: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if('a'<=A[i]&&A[i]<='z'||'A'<=A[i]&&A[i]<='Z') ~~~~~~~~~^~~~~~~~~~~ main.cpp:30:8: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized] lit=lit-j; ~~~^~~~~~