View Compilation Error

0_0_13576624_6595.cpp:6:1: error: expected ']' before 'int'
 int z=0;
 ^
0_0_13576624_6595.cpp: In function 'void input()':
0_0_13576624_6595.cpp:11:2: error: expected ']' before 'cin'
  cin>>i;   
  ^
0_0_13576624_6595.cpp:21:7: error: 'a' was not declared in this scope
       a[b]=e;
       ^
0_0_13576624_6595.cpp:25:12: error: 'a' was not declared in this scope
    int max=a[0];
            ^
0_0_13576624_6595.cpp:32:14: error: 'z' was not declared in this scope
         head[z]=k+1;
              ^
0_0_13576624_6595.cpp:33:9: error: 'tail' was not declared in this scope
         tail[z]=g+1;
         ^
0_0_13576624_6595.cpp:39:13: error: 'z' was not declared in this scope
             z++;
             ^
0_0_13576624_6595.cpp: In function 'void output()':
0_0_13576624_6595.cpp:46:35: error: 'tail' was not declared in this scope
    cout<<m[j]<<" "<<head[j]<<" "<<tail[j]<<endl;
                                   ^