View Compilation Error

0_0_23856422_11930.cpp: In function 'int main()':
0_0_23856422_11930.cpp:28:2: error: expected initializer before 'time_rab'
  time_rab=l/vr;
  ^
0_0_23856422_11930.cpp:29:13: error: 'time_rab' was not declared in this scope
  if(dp[n+1]>time_rab)
             ^