View Compilation Error

0_0_25870535_24795.cpp: In function 'int main()':
0_0_25870535_24795.cpp:8:20: error: expected ';' before 'for'
 #define For(i,a,b) for(int i=a,_=b;i<=_;++i) 
                    ^
0_0_25870535_24795.cpp:83:10: note: in expansion of macro 'For'
          For(i,1,m){
          ^
0_0_25870535_24795.cpp:83:14: error: 'i' was not declared in this scope
          For(i,1,m){
              ^
0_0_25870535_24795.cpp:8:36: note: in definition of macro 'For'
 #define For(i,a,b) for(int i=a,_=b;i<=_;++i) 
                                    ^
0_0_25870535_24795.cpp:8:39: error: '_' was not declared in this scope
 #define For(i,a,b) for(int i=a,_=b;i<=_;++i) 
                                       ^
0_0_25870535_24795.cpp:83:10: note: in expansion of macro 'For'
          For(i,1,m){
          ^