View Compilation Error

0_0_13788432_10300.cpp:29:0: error: unterminated argument list invoking macro "rep"
0_0_13788432_10300.cpp: In function 'int main()':
0_0_13788432_10300.cpp:20:5: error: 'rep' was not declared in this scope
     rep(j,1,n}{
     ^
0_0_13788432_10300.cpp:20:5: error: expected '}' at end of input
0_0_13788432_10300.cpp:20:5: error: expected '}' at end of input
0_0_13788432_10300.cpp:20:5: error: expected '}' at end of input