0_0_38954845_705.cpp:2:7: error: 'll' does not name a type
2 | const ll mod = 998244353;
| ^~
0_0_38954845_705.cpp:3:7: error: 'll' does not name a type
3 | const ll maxn = 1e6 + 5;
| ^~
0_0_38954845_705.cpp:4:1: error: 'll' does not name a type
4 | ll fac[maxn], invfac[maxn];
| ^~
0_0_38954845_705.cpp:6:1: error: 'll' does not name a type
6 | ll quickmi(ll a, ll b, ll p) //求 a^b 模数为 p
| ^~
0_0_38954845_705.cpp: In function 'void get_factorial()':
0_0_38954845_705.cpp:20:5: error: 'fac' was not declared in this scope
20 | fac[0] = invfac[0] = 1;
| ^~~
0_0_38954845_705.cpp:20:14: error: 'invfac' was not declared in this scope
20 | fac[0] = invfac[0] = 1;
| ^~~~~~
0_0_38954845_705.cpp:21:25: error: 'maxn' was not declared in this scope
21 | for (int i = 1; i < maxn; i ++ )
| ^~~~
0_0_38954845_705.cpp:23:35: error: 'mod' was not declared in this scope
23 | fac[i] = fac[i - 1] * i % mod; // 求阶乘
| ^~~
0_0_38954845_705.cpp:24:37: error: 'quickmi' was not declared in this scope
24 | invfac[i] = invfac[i - 1] * quickmi(i, mod - 2, mod) % mod; // 求逆元的阶乘
| ^~~~~~~
0_0_38954845_705.cpp: At global scope:
0_0_38954845_705.cpp:28:1: error: 'll' does not name a type
28 | ll C(ll a, ll b)
| ^~
0_0_38954845_705.cpp: In function 'void solve()':
0_0_38954845_705.cpp:36:21: error: 'cin' was not declared in this scope
36 | int n, m, a, b; cin >> n >> m >> a >> b;
| ^~~
0_0_38954845_705.cpp:37:12: error: 'll' was not declared in this scope
37 | vector<ll> sum(n + 1); sum[1] = 1;
| ^~
0_0_38954845_705.cpp:37:5: error: 'vector' was not declared in this scope
37 | vector<ll> sum(n + 1); sum[1] = 1;
| ^~~~~~
0_0_38954845_705.cpp:37:16: error: 'sum' was not declared in this scope
37 | vector<ll> sum(n + 1); sum[1] = 1;
| ^~~
0_0_38954845_705.cpp:40:45: error: 'mod' was not declared in this scope
40 | sum[i] = sum[i - 1] + quickmi(i, m, mod);
| ^~~
0_0_38954845_705.cpp:40:31: error: 'quickmi' was not declared in this scope
40 | sum[i] = sum[i - 1] + quickmi(i, m, mod);
| ^~~~~~~
0_0_38954845_705.cpp:43:7: error: expected ';' before 't1'
43 | ll t1 = a * quickmi(b, mod - 2, mod) % mod;
| ^~~
| ;
0_0_38954845_705.cpp:44:7: error: expected ';' before 't2'
44 | ll t2 = (b - a) * quickmi(b, mod - 2, mod) % mod;
| ^~~
| ;
0_0_38954845_705.cpp:45:16: error: 'pow1' was not declared in this scope
45 | vector<ll> pow1(n + 1), pow2(n + 1), pow3(n + 1);
| ^~~~
0_0_38954845_705.cpp:45:29: error: 'pow2' was not declared in this scope
45 | vector<ll> pow1(n + 1), pow2(n + 1), pow3(n + 1);
| ^~~~
0_0_38954845_705.cpp:45:42: error: 'pow3' was not declared in this scope
45 | vector<ll> pow1(n + 1), pow2(n + 1), pow3(n + 1);
| ^~~~
0_0_38954845_705.cpp:47:15: error: 't1' was not declared in this scope
47 | pow1[1] = t1, pow2[1] = t2;
| ^~
0_0_38954845_705.cpp:47:29: error: 't2' was not declared in this scope
47 | pow1[1] = t1, pow2[1] = t2;
| ^~
0_0_38954845_705.cpp:50:48: error: 'mod' was not declared in this scope
50 | pow1[i] = pow1[i - 1] * t1; pow1[i] %= mod;
| ^~~
0_0_38954845_705.cpp:54:7: error: expected ';' before 'ans'
54 | ll ans = 0, tmp;
| ^~~~
| ;
0_0_38954845_705.cpp:57:9: error: 'tmp' was not declared in this scope
57 | tmp = sum[i] * pow1[i] % mod * pow2[n - i] % mod * C(n, i) % mod;
| ^~~
0_0_38954845_705.cpp:57:34: error: 'mod' was not declared in this scope
57 | tmp = sum[i] * pow1[i] % mod * pow2[n - i] % mod * C(n, i) % mod;
| ^~~
0_0_38954845_705.cpp:57:60: error: 'C' was not declared in this scope
57 | tmp = sum[i] * pow1[i] % mod * pow2[n - i] % mod * C(n, i) % mod;
| ^
0_0_38954845_705.cpp:58:9: error: 'ans' was not declared in this scope
58 | ans += tmp; ans %= mod;
| ^~~
0_0_38954845_705.cpp:60:5: error: 'cout' was not declared in this scope
60 | cout << ans << '\n';
| ^~~~
0_0_38954845_705.cpp:60:13: error: 'ans' was not declared in this scope
60 | cout << ans << '\n';
| ^~~
|
