View Compilation Error

0_0_34811456_4760.cpp: In function 'void push_down(int)':
0_0_34811456_4760.cpp:78:109: error: 'sumlen' was not declared in this scope
         sum[lson] = (addr[p] * leng(lson) % mod + sum[lson] * addlen[p] % mod + addl[p] * addlen[p] % mod * sumlen[lson] % mod * div10 % mod) % mod;
                                                                                                             ^