View Compilation Error

0_0_17931423_3596.cpp: In function 'int main()':
0_0_17931423_3596.cpp:48:9: error: 'i' was not declared in this scope
     rep(i,0,maxn){
         ^
0_0_17931423_3596.cpp:48:17: error: 'rep' was not declared in this scope
     rep(i,0,maxn){
                 ^