Compilare: user.cpp: In function ‘int main()’: user.cpp:74:29: warning: ‘cpw2’ may be used uninitialized in this function [-Wmaybe-uninitialized] cur2 = ((cur2 - pw2 * S[i - cntP + 1] % MOD2 + MOD2) * B + S[i + 1]) % MOD2; ^ user.cpp:73:29: warning: ‘cpw1’ may be used uninitialized in this function [-Wmaybe-uninitialized] cur1 = ((cur1 - pw1 * S[i - cntP + 1] % MOD1 + MOD1) * B + S[i + 1]) % MOD1; ^ /tmp/cc7Zy6hq.o: In function `main': user.cpp:(.text.startup+0x4e): warning: the `gets' function is dangerous and should not be used.