Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:14:53: error: ‘strcmp’ was not declared in this scope qsort(s, n, 110, (int(*)(const void*, const void*))strcmp); ^ user.cpp:19:26: error: ‘strstr’ was not declared in this scope if (strstr(s[i], s[i-1])) ^ user.cpp:23:23: error: ‘strlen’ was not declared in this scope nr=nr+strlen(s[i-1]); ^ user.cpp:28:23: error: ‘strlen’ was not declared in this scope nr = nr + strlen(s[n]); ^