View Compilation Error

0_0_37850485_16000.cpp: In function 'int main()':
0_0_37850485_16000.cpp:114:63: error: 'sz' was not declared in this scope
         for (int i = 0; i <= n; i++)head[i] = -1, fa[i] = -1, sz[i] = 1, recval[i] = 0;
                                                               ^