View Compilation Error

0_0_18611093_18760.cpp: In function 'void dec()':
0_0_18611093_18760.cpp:74:13: error: 'n' was not declared in this scope
     if (m > n) while(1);
             ^
0_0_18611093_18760.cpp:75:14: error: 'n' was not declared in this scope
     if (m == n)
              ^