View Compilation Error

0_0_36827516_16381.cpp: In function 'void cle()':
0_0_36827516_16381.cpp:12:2: error: 'k' was not declared in this scope
  k=1;
  ^
0_0_36827516_16381.cpp: In function 'void insert(ll)':
0_0_36827516_16381.cpp:21:12: error: 'k' was not declared in this scope
    s[p][b]=k++;
            ^