View Compilation Error

0_0_18096270_4364.cpp: In function 'int main()':
0_0_18096270_4364.cpp:15:14: error: 'i' was not declared in this scope
         for (i = 0; i < n; i++)
              ^
0_0_18096270_4364.cpp:15:25: error: 'n' was not declared in this scope
         for (i = 0; i < n; i++)
                         ^