View Compilation Error

0_0_36437271_2666.cpp: In function 'int main()':
0_0_36437271_2666.cpp:6:11: error: 'read' was not declared in this scope
     int _=read;
           ^
0_0_36437271_2666.cpp:10:13: error: 'i' was not declared in this scope
         rep(i,1,n){
             ^
0_0_36437271_2666.cpp:10:18: error: 'rep' was not declared in this scope
         rep(i,1,n){
                  ^