View Compilation Error

0_0_38968731_23739.cpp: In function 'void build(int, int, int, int)':
0_0_38968731_23739.cpp:224:35: error: 'ma' was not declared in this scope; did you mean 'm'?
  224 |                 tr[rt][i].sum=num[ma[s[l]]][i];
      |                                   ^~
      |                                   m
0_0_38968731_23739.cpp: In function 'void update(int, int, int, int, char, int)':
0_0_38968731_23739.cpp:236:35: error: 'ma' was not declared in this scope; did you mean 'm'?
  236 |                 tr[rt][i].sum=num[ma[ch]][i];
      |                                   ^~
      |                                   m
0_0_38968731_23739.cpp: In function 'int main()':
0_0_38968731_23739.cpp:275:9: error: 'ma' was not declared in this scope; did you mean 'm'?
  275 |         ma['L']=0,ma['U']=1,ma['R']=2,ma['D']=3;
      |         ^~
      |         m