View Compilation Error

0_0_30247717_269.cpp: In function 'int main()':
0_0_30247717_269.cpp:33:92: error: expected ';' before ')' token
    dp[i+1]=(s[i]*((dp[i]+a[i])%mod)%mod-(s[i]-r[i])%mod*dp[x[i]]%mod+mod)%mod*inv(r[i],mod))%mod;
                                                                                            ^