View Compilation Error

0_0_35539145_30538.cpp:14:8: error: empty character constant
 if(ch==''||ch=='\n'||ch==EOF)
        ^
0_0_35539145_30538.cpp: In function 'int main()':
0_0_35539145_30538.cpp:5:1: error: 'in' was not declared in this scope
 in n;
 ^
0_0_35539145_30538.cpp:7:13: error: 'n' was not declared in this scope
 scanf("%d",&n);getchar();
             ^
0_0_35539145_30538.cpp:30:13: error: expected '}' at end of input
 printf("\n");
             ^
0_0_35539145_30538.cpp:30:13: error: expected '}' at end of input