Compilare: main.cpp: In function 'int main()': main.cpp:17:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<=strlen(n)) ~^~~~~~~~~~~ main.cpp:21:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<=strlen(k) && n[i+j]==k[j]) ~^~~~~~~~~~~ main.cpp:23:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j==strlen(k)) ~^~~~~~~~~~~