Compilare: user.cpp: In function ‘int main()’: user.cpp:19:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<strlen(s)) ^ user.cpp:34:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<strlen(s);i++) ^ user.cpp:75:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<strlen(s)) ^ user.cpp:86:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<strlen(cuv)) ^ user.cpp:108:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(k<strlen(cuv)) ^