View Compilation Error

0_0_37226353_18754.cpp:10:1: error: stray '\23' in program
 while(n )
 ^
0_0_37226353_18754.cpp: In function 'int main()':
0_0_37226353_18754.cpp:8:4: error: 'n0' was not declared in this scope
 if(n0)
    ^
0_0_37226353_18754.cpp:16:4: error: 'n1' was not declared in this scope
 if(n1)
    ^