View Compilation Error

0_0_13589673_10016.cpp: In function 'int main()':
0_0_13589673_10016.cpp:34:7: error: 'i' was not declared in this scope
   for(i=0;i<n;i++)
       ^
0_0_13589673_10016.cpp:39:7: error: 'i' was not declared in this scope
   for(i=100000;i>0;i--)
       ^
0_0_13589673_10016.cpp:42:34: error: 'i' was not declared in this scope
   printf("Case #%d: %d\n",kase++,i);
                                  ^