View Compilation Error

0_0_25591178_32599.cpp: In function 'int build()':
0_0_25591178_32599.cpp:22:9: error: 'i' was not declared in this scope
     rep(i, 1, n + 1) l[i] = r[i] = vis[i] = 0;
         ^
0_0_25591178_32599.cpp:22:20: error: 'rep' was not declared in this scope
     rep(i, 1, n + 1) l[i] = r[i] = vis[i] = 0;
                    ^
0_0_25591178_32599.cpp: In function 'int main()':
0_0_25591178_32599.cpp:48:9: error: 'i' was not declared in this scope
     rep(i, 2, MAXN) inv[i] = 1LL * inv[MOD%i]*(MOD-MOD/i)%MOD;
         ^
0_0_25591178_32599.cpp:48:19: error: 'rep' was not declared in this scope
     rep(i, 2, MAXN) inv[i] = 1LL * inv[MOD%i]*(MOD-MOD/i)%MOD;
                   ^