View Compilation Error

0_0_37549020_25141.cpp:47:1: error: 'll' does not name a type
 ll dp[MAX];
 ^
0_0_37549020_25141.cpp: In function 'LL GetY(int, int)':
0_0_37549020_25141.cpp:50:9: error: 'dp' was not declared in this scope
  return dp[j-1]-sum[j-1]+(j-1)*s[j]-(dp[k-1]-sum[k-1]+(k-1)*s[k]);
         ^
0_0_37549020_25141.cpp: In function 'LL DP()':
0_0_37549020_25141.cpp:61:24: error: 'dp' was not declared in this scope
  for(int i=t;i<2*t;++i)dp[i]=sum[i]-i*s[1];//初始化
                        ^
0_0_37549020_25141.cpp:66:3: error: 'dp' was not declared in this scope
   dp[i]=dp[q[head]-1]+sum[i]-sum[q[head]-1]+(q[head]-1)*s[q[head]]-i*s[q[head]];
   ^
0_0_37549020_25141.cpp:68:9: error: 'dp' was not declared in this scope
  return dp[n];
         ^