View Compilation Error

0_0_34162342_2425.cpp: In function 'int main()':
0_0_34162342_2425.cpp:7:5: error: 'a' was not declared in this scope
  if(a>=0 && a<60)
     ^
0_0_34162342_2425.cpp:30:2: error: expected ';' before '}' token
  }
  ^