View Compilation Error

0_0_20300865_10916.cpp:5:1: error: expected initializer before 'bool'
 bool to[3000005];
 ^
0_0_20300865_10916.cpp: In function 'void ready(long long int)':
0_0_20300865_10916.cpp:10:11: error: 'to' was not declared in this scope
       if(!to[i]){
           ^
0_0_20300865_10916.cpp:11:10: error: 'is' was not declared in this scope
          is[++tot]=i;
          ^
0_0_20300865_10916.cpp:15:15: error: 'is' was not declared in this scope
          if(i*is[j]>n) break;
               ^
0_0_20300865_10916.cpp:16:10: error: 'to' was not declared in this scope
          to[i*is[j]]=1;
          ^
0_0_20300865_10916.cpp:16:15: error: 'is' was not declared in this scope
          to[i*is[j]]=1;
               ^