View Compilation Error

0_0_36873154_6478.cpp:16:5: error: redefinition of 'int n'
 int n, m, cnt, f[MaxN], d[MaxN], size[MaxN], son[MaxN], rk[MaxN], top[MaxN], id[MaxN];
     ^
0_0_36873154_6478.cpp:9:13: note: 'int n' previously declared here
 int ts = 1, n, q;
             ^