View Compilation Error

0_0_27790313_11293.cpp: In function 'int main()':
0_0_27790313_11293.cpp:5:20: error: expected ';' before 'for'
 #define rep(i,a,b) for(int i(a),i##_END_(b);i<=i##_END_;i++)
                    ^
0_0_27790313_11293.cpp:93:5: note: in expansion of macro 'rep'
     rep(i,0,n-1)scanf("%d",a+i);
     ^
0_0_27790313_11293.cpp:93:9: error: 'i' was not declared in this scope
     rep(i,0,n-1)scanf("%d",a+i);
         ^
0_0_27790313_11293.cpp:5:45: note: in definition of macro 'rep'
 #define rep(i,a,b) for(int i(a),i##_END_(b);i<=i##_END_;i++)
                                             ^
0_0_27790313_11293.cpp:93:9: error: 'i_END_' was not declared in this scope
     rep(i,0,n-1)scanf("%d",a+i);
         ^
0_0_27790313_11293.cpp:5:48: note: in definition of macro 'rep'
 #define rep(i,a,b) for(int i(a),i##_END_(b);i<=i##_END_;i++)
                                                ^