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ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#881876 | #5098. 第一代图灵机 | lycc | 0 | 0ms | 0kb | C++20 | 5.0kb | 2025-02-04 19:12:44 | 2025-02-04 19:12:45 |
Judging History
answer
// Author: lycc
//
// Problem: # 5098. 第一代图灵机
// Contest:
// URL: https://qoj.ac/problem/5098
// Memory Limit: 1024 MB
// Time Limit: 1000 ms
#include <bits/stdc++.h>
#define int long long
#define lb lower_bound
#define ub upper_bound
#define fi first
#define se second
#define pb emplace_back
#define For(i, x, y) for (int i = (x); i <= (y); i ++)
#define rep(i, x, y) for (int i = (x); i >= (y); i --)
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
#define sz(v) (int)((v).size())
#define ull unsigned long long
#define ls (p << 1)
#define rs (p << 1 | 1)
#define mp make_pair
#define i128 __int128
#define db long double
#define vi vector< int >
#define mem(v, x) memset(v, x, sizeof(v))
#define A3 array< int, 3 >
#define A4 array< int, 4 >
#define vpii vector< pair< int, int > >
using namespace std;
mt19937_64 rnd(time(0));
template< typename T > void cmin(T &x, T y) { return x = min(x, y), void(); }
template< typename T > void cmax(T &x, T y) { return x = max(x, y), void(); }
int ksm(int x, int y, int p) {
int v = 1; x %= p;
while (y) v = 1ll * v * ((y & 1) ? x : 1) % p, x = 1ll * x * x % p, y >>= 1;
return (v % p + p) % p;
}
void file() {
freopen("1.in", "r", stdin);
freopen("1.out", "w", stdout);
return;
}
bool MemoryST;
const int N = 2e5 + 5;
const int mod = 998244353;
const long long INF = 1e18;
const int base = 13131;
using ll = long long;
int n, m, q;
int a[N];
set< int > pos[N];
int c[N];
int get(int p) {
return *(pos[c[p]].ub(p)) - 1;
}
int nex[N];
struct ds1 {
int minn[N * 4];
void build(int l, int r, int p) {
if (l == r) return minn[p] = nex[l], void();
int mid = (l + r) >> 1;
build(l, mid, ls); build(mid + 1, r, rs);
minn[p] = min(minn[ls], minn[rs]);
return;
}
void modify(int l, int r, int x, int p) {
if (l == r) return minn[p] = nex[l], void();
int mid = (l + r) >> 1;
if (x <= mid) modify(l, mid, x, ls);
else modify(mid + 1, r, x, rs);
minn[p] = min(minn[ls], minn[rs]);
return;
}
int query(int l, int r, int p, int v) {
if (minn[p] > v) return -1;
if (l == r) return l;
int mid = (l + r) >> 1, res = query(mid + 1, r, rs, v);
if (res != -1) return res;
return query(l, mid, ls, v);
}
} t1;
int lres[N * 4], minn[N * 4], ans[N * 4];
int query(int l, int r, int p, int v) {
if (l == r) return a[min(nex[l], v)] - a[l - 1];
int mid = (l + r) >> 1;
if (minn[rs] <= v) return max(lres[ls], query(mid + 1, r, rs, v));
return max(query(l, mid, ls, v), a[v] - a[mid]);
}
void build(int l, int r, int p) {
if (l == r) return minn[p] = nex[l], ans[p] = a[nex[l]] - a[l - 1], void();
int mid = (l + r) >> 1;
build(l, mid, ls); build(mid + 1, r, rs);
lres[p] = query(l, mid, ls, minn[rs]);
minn[p] = min(minn[ls], minn[rs]);
ans[p] = max(lres[p], ans[rs]);
return;
}
void modify(int l, int r, int x, int p) {
if (l == r) return minn[p] = nex[l], ans[p] = a[nex[l]] - a[l - 1], void();
int mid = (l + r) >> 1;
if (x <= mid) modify(l, mid, x, ls);
else modify(mid + 1, r, x, rs);
lres[p] = query(l, mid, ls, minn[rs]);
minn[p] = min(minn[ls], minn[rs]);
ans[p] = max(lres[p], ans[rs]);
return;
}
int Minn, Ans;
void query(int l, int r, int x, int y, int p) {
if (l >= x && r <= y) {
if (Ans == -INF) Minn = minn[p], Ans = ans[p];
else {
cmax(Ans, query(x, y, p, Minn));
cmin(Minn, minn[p]);
}
return;
}
int mid = (l + r) >> 1;
if (y > mid) query(mid + 1, r, x, y, rs);
if (x <= mid) query(l, mid, x, y, ls);
return;
return;
}
int Pre(int p, int col) {
return *(prev(pos[col].lb(p)));
}
int Nex(int p, int col) {
return *(pos[col].ub(p));
}
void Main() {
cin >> n >> m >> q;
For (i, 1, n) {
cin >> a[i]; a[i] += a[i - 1];
}
For (i, 1, m) pos[i].insert(n + 1), pos[i].insert(0);
For (i, 1, n) {
cin >> c[i];
pos[c[i]].insert(i);
}
For (i, 1, n) nex[i] = get(i);
t1.build(1, n, 1); build(1, n, 1);
while (q --) {
int op; cin >> op;
if (op == 1) {
int l, r; cin >> l >> r;
int p = query(1, n, 1, r);
if (p < l) {
cout << a[r] - a[l - 1] << '\n';
continue;
}
Minn = INF; Ans = -INF;
query(1, n, l, p, 1);
cmax(Ans, a[r] - a[p]);
cout << Ans << '\n';
} else {
int x, v; cin >> x >> v;
if (c[x] != v) {
int i = Pre(x, c[x]), j = Nex(x, c[x]);
if (i) nex[i] = j - 1, t1.modify(1, n, i, 1), modify(1, n, i, 1);
pos[c[x]].erase(x);
c[x] = v;
i = Pre(x, c[x]); j = Nex(x, c[x]);
if (i) nex[i] = x - 1, t1.modify(1, n, i, 1), modify(1, n, i, 1);
nex[x] = j - 1; t1.modify(1, n, x, 1); modify(1, n, x, 1);
pos[c[x]].insert(x);
}
}
}
return;
}
bool MemoryED;
signed main() {
// file();
ios :: sync_with_stdio(0);
cin.tie(0); cout.tie(0);
cerr << fixed << setprecision(6) << (&MemoryST - &MemoryED) / 1048576.0 << "MB\n";
int TESTCNT = 1;
// cin >> TESTCNT;
while (TESTCNT --) Main();
cerr << endl << 1e3 * clock() / CLOCKS_PER_SEC << "ms";
return 0;
}
详细
Subtask #1:
score: 0
Runtime Error
Test #1:
score: 0
Runtime Error
input:
5000 200 5000 2315 3433 1793 4621 4627 4561 289 4399 3822 2392 392 4581 2643 2441 4572 4649 2981 3094 4206 2057 761 2516 2849 3509 3033 658 4965 3316 3269 4284 4961 753 1187 2515 1377 1725 4743 4761 3823 3464 4859 989 2401 953 875 1481 2181 103 2067 2625 3296 4721 61 3843 1607 997 4385 1284 4299 441...
output:
result:
Subtask #2:
score: 0
Runtime Error
Test #3:
score: 0
Runtime Error
input:
200000 10 200000 55651 97298 108697 86619 60721 199951 10610 162267 154301 138848 39191 18605 101369 57073 34977 101576 71252 143401 89587 160521 166491 38442 150761 35579 25571 121311 38033 38483 144639 41401 179161 54872 157905 137601 46863 187656 171901 43715 41036 150741 69057 102031 130561 4772...
output:
result:
Subtask #3:
score: 0
Runtime Error
Test #5:
score: 0
Runtime Error
input:
200000 20000 200000 30681 32496 35471 48191 159123 69792 120915 150673 187226 158493 36275 26856 107976 124777 145229 69745 183961 14497 144808 153612 185893 137681 66417 46802 19345 113322 168046 128149 191001 135433 13201 139214 59489 81178 42343 163158 110121 119201 97501 53079 158755 192241 1132...
output:
result:
Subtask #4:
score: 0
Skipped
Dependency #1:
0%
Subtask #5:
score: 0
Skipped
Dependency #4:
0%