View Compilation Error

0_0_14895484_22691.cpp: In function 'int main()':
0_0_14895484_22691.cpp:36:14: error: 'casenum' was not declared in this scope
  scanf("%d",&casenum);
              ^
0_0_14895484_22691.cpp:37:6: error: 'casei' was not declared in this scope
  for(casei=1;casei<=casenum;casei++)
      ^