View Compilation Error

0_0_23262092_1068.cpp: In function 'void add(int, int, int)':
0_0_23262092_1068.cpp:146:14: error: 'Max' was not declared in this scope
  tag[y]+=val,Max[y]+=val,w[y]+=val;
              ^
0_0_23262092_1068.cpp:146:26: error: 'w' was not declared in this scope
  tag[y]+=val,Max[y]+=val,w[y]+=val;
                          ^