View Compilation Error

0_0_22692336_17751.cpp:6:7: error: 'maxn' was not declared in this scope
 int c[maxn], tc[maxn];
       ^
0_0_22692336_17751.cpp:6:17: error: 'maxn' was not declared in this scope
 int c[maxn], tc[maxn];
                 ^
0_0_22692336_17751.cpp: In function 'int main()':
0_0_22692336_17751.cpp:16:13: error: 'inf' was not declared in this scope
         ans=inf;
             ^
0_0_22692336_17751.cpp:17:23: error: 'maxn' was not declared in this scope
         for(int i=1;i<maxn;i++)
                       ^
0_0_22692336_17751.cpp:19:26: error: 'c' was not declared in this scope
             scanf("%d", &c[i]);
                          ^
0_0_22692336_17751.cpp:20:13: error: 'tc' was not declared in this scope
             tc[i]=c[i];
             ^
0_0_22692336_17751.cpp:29:17: error: 'tc' was not declared in this scope
                 tc[5]=c[5]-i;
                 ^
0_0_22692336_17751.cpp:29:23: error: 'c' was not declared in this scope
                 tc[5]=c[5]-i;
                       ^