結果
| 問題 |
No.3250 最小公倍数
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-08-04 21:58:24 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 1,480 bytes |
| コンパイル時間 | 1,983 ms |
| コンパイル使用メモリ | 208,520 KB |
| 実行使用メモリ | 42,444 KB |
| 最終ジャッジ日時 | 2025-10-16 16:06:51 |
| 合計ジャッジ時間 | 6,876 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | WA * 1 |
| other | WA * 13 RE * 9 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:43:12: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
43 | freopen("lcm.in", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
main.cpp:44:12: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
44 | freopen("lcm.out", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
main.cpp:46:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
46 | scanf("%d", &n);
| ~~~~~^~~~~~~~~~
main.cpp:47:39: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
47 | for (int i = 1; i <= n; i++) scanf("%lld", &a[i]);
| ~~~~~^~~~~~~~~~~~~~~
main.cpp:51:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
51 | scanf("%d%d", &u, &v);
| ~~~~~^~~~~~~~~~~~~~~~
ソースコード
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll mod = 998244353;
const int N = 500005;
const int INF = 0x3f3f3f3f;
ll a[N];
map<ll, ll> mp[N], m1, m2;
ll powmod(ll x, ll y, ll mod) {
ll res = 1;
while (y) {
if (y & 1) res = res * x % mod;
y >>= 1;
x = x * x % mod;
}
return res;
}
void get_factor(ll n, map<ll, ll> &mp) {
for (int i = 2; i * i <= n; i++) {
if (n % i == 0) {
while (n % i == 0) {
n /= i;
mp[i]++;
}
}
}
if (n != 1) mp[n]++;
}
vector<int> G[N];
int fa[N];
void dfs(int u) {
for (auto v : G[u]) {
if (v == fa[u]) continue;
fa[v] = u;
dfs(v);
m1 = mp[u], m2 = mp[v];
if ((int)m1.size() > (int)m2.size()) swap(m1, m2);
for (auto [x, y] : m2) m1[x] = max(m1[x], y);
mp[u] = m1;
}
}
int main() {
freopen("lcm.in", "r", stdin);
freopen("lcm.out", "w", stdout);
int n;
scanf("%d", &n);
for (int i = 1; i <= n; i++) scanf("%lld", &a[i]);
for (int i = 1; i <= n; i++) get_factor(a[i], mp[i]);
for (int i = 1; i < n; i++) {
int u, v;
scanf("%d%d", &u, &v);
G[u].push_back(v);
G[v].push_back(u);
}
dfs(1);
for (int i = 1; i <= n; i++) {
ll res = 1;
for (auto [x, y] : mp[i]) res = res * powmod(x, 1ll * y, mod) % mod;
printf("%lld\n", res);
}
return 0;
}