Compilare: main.cpp: In function 'void next(char*, char*)': main.cpp:18:21: warning: 'sizeof' on array function parameter 's' will return size of 'char*' [-Wsizeof-array-argument] char sc[sizeof(s)]; ^ main.cpp:16:18: note: declared here void next(char s[],char S[]) ^ main.cpp:19:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(s);i++) ~^~~~~~~~~~