answer.code:29:14: error: in C++98 ‘roots’ must be initialized by constructor, not by ‘{...}’
   29 | vector<base> roots = {{0, 0}, {1, 0}};
      |              ^~~~~
answer.code:29:37: error: could not convert ‘{{0, 0}, {1, 0}}’ from ‘<brace-enclosed initializer list>’ to ‘std::vector<base>’
   29 | vector<base> roots = {{0, 0}, {1, 0}};
      |                                     ^
      |                                     |
      |                                     <brace-enclosed initializer list>
answer.code:30:13: error: in C++98 ‘rev’ must be initialized by constructor, not by ‘{...}’
   30 | vector<int> rev = {0, 1};
      |             ^~~
answer.code: In function ‘std::vector<long long int> multiply(std::vector<long long int>&, std::vector<long long int>&, long long int)’:
answer.code:78:57: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   78 |         fill (A.begin() + a.size(), A.begin() + sz, base{0, 0});
      |                                                         ^
answer.code:87:65: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   87 |                 fill (B.begin() + b.size(), B.begin() + sz, base{0, 0});
      |                                                                 ^
answer.code: At global scope:
answer.code:119:20: warning: defaulted and deleted functions only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
  119 |         modint() = default;
      |                    ^~~~~~~
answer.code:151:26: error: ‘uint64_t’ has not been declared
  151 |         modint<MOD> pow (uint64_t k) const {
      |                          ^~~~~~~~
answer.code:216:7: error: expected nested-name-specifier before ‘mint’
  216 | using mint = modint<mod>;
      |       ^~~~
answer.code:218:16: error: ‘mint’ was not declared in this scope; did you mean ‘uint’?
  218 |         vector<mint> a;
      |                ^~~~
      |                uint
answer.code:218:20: error: template argument 1 is invalid
  218 |         vector<mint> a;
      |                    ^
answer.code:218:20: error: template argument 2 is invalid
answer.code:222:23: warning: variadic templates only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
  222 |         template<class...Args> poly (Args...args): a (args...) { }
      |                       ^~~
answer.code:222:45: warning: variadic templates only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
  222 |         template<class...Args> poly (Args...args): a (args...) { }
      |                                             ^~~~
answer.code:223:21: error: ‘initializer_list’ does not name a type
  223 |         poly (const initializer_list<mint> &x): a (x.begin(), x.end()) { }
      |                     ^~~~~~~~~~~~~~~~
answer.code:223:37: error: expected ‘,’ or ‘...’ before ‘<’ token
  223 |         poly (const initializer_list<mint> &x): a (x.begin(), x.end()) { }
      |                                     ^
answer.code:227:16: error: ‘mint’ does not name a type; did you mean ‘uint’?
  227 |         inline mint coef (const int i) const {
      |                ^~~~
      |                uint
answer.code:230:9: error: ‘mint’ does not name a type; did you mean ‘uint’?
  230 |         mint operator[] (const int i) const {
      |         ^~~~
      |         uint
answer.code:262:32: error: ‘mint’ does not name a type; did you mean ‘uint’?
  262 |         poly operator * (const mint& x) const {
      |                                ^~~~
      |                                uint
answer.code:268:32: error: ‘mint’ does not name a type; did you mean ‘uint’?
  268 |         poly operator / (const mint &x) const {
      |                                ^~~~
      |                                uint
answer.code:280:34: error: ‘mint’ does not name a type; did you mean ‘uint’?
  280 |         poly& operator *= (const mint &x) {
      |                                  ^~~~
      |                                  uint
answer.code:283:34: error: ‘mint’ does not name a type; did you mean ‘uint’?
  283 |         poly& operator /= (const mint &x) {
      |                                  ^~~~
      |                                  uint
answer.code:440:20: error: ‘mint’ has not been declared
  440 |         poly mulx (mint x) { //component-wise multiplication with x^k
      |                    ^~~~
answer.code:446:23: error: ‘mint’ has not been declared
  446 |         poly mulx_sq (mint x) { //component-wise multiplication with x^{k^2}
      |                       ^~~~
answer.code:452:16: error: ‘mint’ was not declared in this scope; did you mean ‘uint’?
  452 |         vector<mint> chirpz_even (mint z, int n) { //P(1), P(z^2), P(z^4), ..., P(z^2(n-1))
      |                ^~~~
      |                uint
answer.code:452:20: error: template argument 1 is invalid
  452 |         vector<mint> c...