View Compilation Error

0_0_35937160_10754.cpp: In function 'void met()':
0_0_35937160_10754.cpp:21:22: error: 'n' was not declared in this scope
   for(int i = 1;i <= n;i++)
                      ^
0_0_35937160_10754.cpp:25:22: error: 'n' was not declared in this scope
   for(int i = 1;i <= n;i++)
                      ^