結果
| 問題 |
No.2659 Manga App
|
| コンテスト | |
| ユーザー |
てんぷら
|
| 提出日時 | 2024-03-01 01:30:43 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 4,159 bytes |
| コンパイル時間 | 5,467 ms |
| コンパイル使用メモリ | 323,012 KB |
| 実行使用メモリ | 253,056 KB |
| 最終ジャッジ日時 | 2024-09-29 13:23:25 |
| 合計ジャッジ時間 | 13,475 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 14 WA * 32 |
ソースコード
#include <atcoder/all>
#include <bits/stdc++.h>
using ll = long long;
using ull = unsigned long long;
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define REP(i, m, n) for(int i = (int)(m); i < (int)(n); i++)
using namespace std;
using namespace atcoder;
using mint = modint998244353;
const int inf = 1000000007;
const ll longinf = 1ll << 60;
namespace modint_util {
vector<mint> fact, invfact, inv;
void init(int n = 1 << 20) {
fact.assign(n + 1, 0);
invfact.assign(n + 1, 0);
inv.assign(n + 1, 0);
fact[0] = 1;
rep(i, n) fact[i + 1] = fact[i] * (i + 1);
invfact[n] = fact[n].inv();
rep(i, n) invfact[n - i - 1] = invfact[n - i] * (n - i);
rep(i, n) inv[i + 1] = invfact[i + 1] * fact[i];
}
vector<mint> power_list(int n, mint v) {
vector<mint> a(n);
a[0] = 1;
rep(i, n - 1) a[i + 1] = a[i] * v;
return a;
}
mint comb(int n, int k) {
if(k < 0 || k > n || n < 0) {
return 0;
}
return fact[n] * fact[n - k] * fact[k];
}
}; // namespace modint_util
namespace fp = modint_util;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int n;
cin >> n;
ll b, c, x;
cin >> b >> c >> x;
ll d = b + c;
vector<ll> a(n - 1);
rep(i, n - 1) cin >> a[i];
vector<map<ll, ll>> dps(n), dpe(n);
map<ll, ll> last;
dps[0][0] = 0;
ll ans = longinf;
rep(i, n - 1) {
{
int k = i;
ll t = 0;
while(k < n - 1) {
t += a[k++];
if(t % d > b) {
break;
}
}
if(k == n - 1) {
for(auto [ct, cx] : dps[i]) {
ll ret = max(ct + t - (x - cx), 0ll);
if(ret % d > b) {
ret = (ret + d - 1) / d * d;
}
ans = min(ans, ret);
}
} else {
ll s = (t + d - 1) / d * d;
ll e = t / d * d;
ll need = t - e;
for(auto [ct, cx] : dps[i]) {
if(dpe[k].count(ct + s)) {
dps[k][ct + s] = min(dps[k][ct + s], cx);
} else {
dps[k][ct + s] = cx;
}
}
for(auto [ct, cx] : dps[i]) {
if(cx + need > x) {
continue;
}
if(dpe[k].count(ct + e)) {
dpe[k][ct + e] = min(dpe[k][ct + e], cx + need);
} else {
dpe[k][ct + e] = cx + need;
}
}
}
}
{
int k = i;
ll t = b;
while(k < n - 1) {
t += a[k++];
if(t % d > b) {
break;
}
}
if(k == n - 1) {
t -= b;
for(auto [ct, cx] : dpe[i]) {
ll ret = max(ct + t - (x - cx), 0ll);
if(ret % d > b) {
ret = (ret + d - 1) / d * d;
}
ans = min(ans, ret);
}
} else {
ll s = (t + d - 1) / d * d;
ll e = t / d * d;
ll need = t - e;
s -= b;
e -= b;
for(auto [ct, cx] : dpe[i]) {
if(dpe[k].count(ct + s)) {
dps[k][ct + s] = min(dps[k][ct + s], cx);
} else {
dps[k][ct + s] = cx;
}
}
for(auto [ct, cx] : dpe[i]) {
if(cx + need > x) {
continue;
}
if(dpe[k].count(ct + e)) {
dpe[k][ct + e] = min(dpe[k][ct + e], cx + need);
} else {
dpe[k][ct + e] = cx + need;
}
}
}
}
}
cout << ans << endl;
return 0;
}
てんぷら