View Compilation Error

0_0_18188163_4743.cpp:53:13: error: redefinition of 'int p [400000]'
 int p[2*maxn];
             ^
0_0_18188163_4743.cpp:10:5: note: 'int p [400000]' previously declared here
 int p[2*maxn];
     ^
0_0_18188163_4743.cpp:54:12: error: redefinition of 'char s [200000]'
 char s[maxn];
            ^
0_0_18188163_4743.cpp:11:6: note: 'char s [200000]' previously declared here
 char s[maxn];
      ^
0_0_18188163_4743.cpp: In function 'void manacher(char*)':
0_0_18188163_4743.cpp:56:6: error: redefinition of 'void manacher(char*)'
 void manacher(char *s){//时间复杂度O(n)
      ^
0_0_18188163_4743.cpp:13:6: note: 'void manacher(char*)' previously defined here
 void manacher(char *s){//时间复杂度O(n)
      ^
0_0_18188163_4743.cpp: In function 'int main()':
0_0_18188163_4743.cpp:80:5: error: redefinition of 'int main()'
 int main()
     ^
0_0_18188163_4743.cpp:37:5: note: 'int main()' previously defined here
 int main()
     ^