View Compilation Error

0_0_14005988_6716.cpp: In function 'int main()':
0_0_14005988_6716.cpp:19:7: error: 'i' was not declared in this scope
   for(i=0;i<n;i++)
       ^
0_0_14005988_6716.cpp:29:7: error: 'i' was not declared in this scope
   for(i=0;i<n;i++)
       ^