View Compilation Error

0_0_18653473_19176.cpp: In function 'void init()':
0_0_18653473_19176.cpp:34:17: error: 'LL' was not declared in this scope
         dp[i]=((LL)dp[i-1]*(LL)(dp[i-1]+1)/2%mod+(LL)dp[i-1]*(LL)sum[i-2]%mod)%mod;
                 ^
0_0_18653473_19176.cpp:34:20: error: expected ')' before 'dp'
         dp[i]=((LL)dp[i-1]*(LL)(dp[i-1]+1)/2%mod+(LL)dp[i-1]*(LL)sum[i-2]%mod)%mod;
                    ^