/in/foo.cc:3:19: error: 'N' was not declared in this scope
 bool isPeak(int a[N][N],int m,int n, int i,int j)
                   ^
/in/foo.cc:3:22: error: 'N' was not declared in this scope
 bool isPeak(int a[N][N],int m,int n, int i,int j)
                      ^
/in/foo.cc:3:24: error: expected ')' before ',' token
 bool isPeak(int a[N][N],int m,int n, int i,int j)
                        ^
/in/foo.cc:3:25: error: expected unqualified-id before 'int'
 bool isPeak(int a[N][N],int m,int n, int i,int j)
                         ^~~