View Compilation Error

0_0_16779088_25694.cpp: In function 'int main()':
0_0_16779088_25694.cpp:12:7: error: 'i' was not declared in this scope
   for(i=0;i<n;i++){
       ^
0_0_16779088_25694.cpp:17:7: error: 'i' was not declared in this scope
   for(i=0;i<n;i++){
       ^