View Compilation Error

0_0_33994933_21197.cpp:8:11: error: 'maxn' was not declared in this scope
 int prime[maxn];
           ^
0_0_33994933_21197.cpp: In function 'void init()':
0_0_33994933_21197.cpp:15:13: error: 'prime' was not declared in this scope
             prime[p++]=i;
             ^
0_0_33994933_21197.cpp: In function 'int frac(int)':
0_0_33994933_21197.cpp:24:17: error: 'prime' was not declared in this scope
         if (n < prime[i]) break;
                 ^
0_0_33994933_21197.cpp:25:20: error: 'prime' was not declared in this scope
         while (n % prime[i] == 0) {
                    ^