Compilare: main.cpp: In function 'int subsir(char*, char*)': main.cpp:13:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < strlen(s1) && j < strlen(s2)) ~~^~~~~~~~~~~~ main.cpp:13:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < strlen(s1) && j < strlen(s2)) ~~^~~~~~~~~~~~ main.cpp:18:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j == strlen(s2)) ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:41:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(A[i]) > lmax) ~~~~~~~~~~~~~^~~~~~ main.cpp:46:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(strlen(A[i]) == lmax) ~~~~~~~~~~~~~^~~~~~~