运行 ID: 29802

Main.cc: In function ‘int main()’:
Main.cc:28:12: error: missing template arguments before ‘dp_l’
     vector dp_l(n, 1LL), dp_r(n, 1LL);
            ^~~~
Main.cc:36:17: error: ‘dp_r’ was not declared in this scope
                 dp_r[j] = (dp_r[j] + dp_l[i]) % MOD;
                 ^~~~
Main.cc:36:38: error: ‘dp_l’ was not declared in this scope
                 dp_r[j] = (dp_r[j] + dp_l[i]) % MOD;
                                      ^~~~
Main.cc:38:17: error: ‘dp_l’ was not declared in this scope
                 dp_l[i] = (dp_r[j] + dp_l[i]) % MOD;
                 ^~~~
Main.cc:38:28: error: ‘dp_r’ was not declared in this scope
                 dp_l[i] = (dp_r[j] + dp_l[i]) % MOD;
                            ^~~~
Main.cc:45:22: error: ‘dp_l’ was not declared in this scope
         ans = (ans + dp_l[i] + dp_r[i]) % MOD;
                      ^~~~
Main.cc:45:32: error: ‘dp_r’ was not declared in this scope
         ans = (ans + dp_l[i] + dp_r[i]) % MOD;
                                ^~~~