View Compilation Error

0_0_20808863_10252.cpp: In function 'void init()':
0_0_20808863_10252.cpp:12:2: error: 'tl' was not declared in this scope
  tl=0;cnt=0;ans=0;
  ^
0_0_20808863_10252.cpp: In function 'bool mah(int)':
0_0_20808863_10252.cpp:30:18: error: 'tl' was not declared in this scope
  for (int i=1;i<=tl;i++)
                  ^
0_0_20808863_10252.cpp:53:18: error: 'tl' was not declared in this scope
  for (int i=1;i<=tl;i++)
                  ^
0_0_20808863_10252.cpp: In function 'int main()':
0_0_20808863_10252.cpp:71:10: error: 'tl' was not declared in this scope
    lis[++tl]=c;
          ^