View Compilation Error

0_0_37405528_31082.cpp: In function 'int main()':
0_0_37405528_31082.cpp:7:2: error: expected initializer before 'double'
  double a[120],dp[120],t;
  ^
0_0_37405528_31082.cpp:9:10: error: 'a' was not declared in this scope
   memset(a,0,sizeof(a));
          ^
0_0_37405528_31082.cpp:10:10: error: 'dp' was not declared in this scope
   memset(dp,0,sizeof(dp));
          ^
0_0_37405528_31082.cpp:11:25: error: 'VT2' was not declared in this scope
  cin>>N>>C>>T>>VR>>VT1>>VT2;
                         ^
0_0_37405528_31082.cpp:20:5: error: 't' was not declared in this scope
     t=k>C?(C/VT1+(k-C)/VT2):(k/VT1);
     ^