QOJ.ac
QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#886319 | #9974. After god | hhoppitree | WA | 1043ms | 224896kb | C++20 | 2.7kb | 2025-02-06 22:04:28 | 2025-02-06 22:04:29 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 1e6 + 5, inf = 1e9;
int a[N], lst[N];
vector< array<int, 3> > mdf[N];
vector<int> qry[N];
long long res[N];
struct Info {
int mn, mnc, sec, lz;
long long k, lzk, b, lzb;
void apply(int x, long long tk, long long tb) {
if (x <= mn) return;
assert(x < sec);
mn = lz = x, k += tk * mnc, b += tb * mnc, lzk += tk, lzb += tb;
}
} p[1 << 21];
void build(int k, int l, int r) {
p[k].mnc = r - l + 1, p[k].sec = inf, p[k].lz = -inf;
if (l == r) return;
int mid = (l + r) >> 1;
build(k << 1, l, mid), build(k << 1 | 1, mid + 1, r);
}
void pushdown(int k) {
if (p[k].lz != -inf) {
p[k << 1].apply(p[k].lz, p[k].lzk, p[k].lzb);
p[k << 1 | 1].apply(p[k].lz, p[k].lzk, p[k].lzb);
p[k].lz = -inf, p[k].lzk = p[k].lzb = 0;
}
}
void pushup(int k) {
if (p[k << 1].mn == p[k << 1 | 1].mn) {
p[k].mn = p[k << 1].mn;
p[k].mnc = p[k << 1].mnc + p[k << 1 | 1].mnc;
p[k].sec = min(p[k << 1].sec, p[k << 1 | 1].sec);
} else {
int t = (p[k << 1].mn < p[k << 1 | 1].mn ? k << 1 : k << 1 | 1);
p[k].mn = p[t].mn, p[k].mnc = p[t].mnc;
p[k].sec = min(p[t].sec, p[t ^ 1].mn);
}
p[k].k = p[k << 1].k + p[k << 1 | 1].k, p[k].b = p[k << 1].b + p[k << 1 | 1].b;
}
void modify(int k, int l, int r, int x, int y, int z, int w) {
if (l > y || r < x || p[k].mn >= z) return;
if (l >= x && r <= y && p[k].sec > z) {
p[k].apply(z, z - p[k].mn, -(z - p[k].mn) * w);
return;
}
pushdown(k);
int mid = (l + r) >> 1;
modify(k << 1, l, mid, x, y, z, w);
modify(k << 1 | 1, mid + 1, r, x, y, z, w);
pushup(k);
}
long long query(int k, int l, int r, int x, int y, int z) {
if (l > y || r < x) return 0;
if (l >= x && r <= y) return p[k].k * z + p[k].b;
pushdown(k);
int mid = (l + r) >> 1;
return query(k << 1, l, mid, x, y, z) + query(k << 1 | 1, mid + 1, r, x, y, z);
}
signed main() {
int n, q; scanf("%d%d", &n, &q);
for (int i = 1; i <= q; ++i) {
int x, y; scanf("%d%d", &x, &y);
mdf[x].push_back({lst[x] + 1, i - 1, a[x]}), a[x] = y;
lst[x] = i - 1;
qry[x].push_back(i);
}
for (int i = 1; i <= n; ++i) {
mdf[i].push_back({lst[i] + 1, q, a[i]});
}
build(1, 1, q);
for (int i = 1; i <= n; ++i) {
for (auto [x, y, z] : mdf[i]) modify(1, 1, q, x, y, z, i - 1);
for (auto x : qry[i]) res[x] = query(1, 1, q, 1, x, i);
}
for (int i = 1; i <= q; ++i) printf("%lld\n", res[i]);
return 0;
}
詳細信息
Test #1:
score: 0
Wrong Answer
time: 1043ms
memory: 224896kb
input:
1000000 1000000 671688 1 193619 1 70068 1 729448 2 832062 64939 205871 1 749767 4 710152 4 993304 117427 157247 1 721584 4 6827 1 369183 2 476643 4 852855 753355 508841 6 245181 3 54307 1 137064 2 115503 2 66950 1 291862 1 770657 976136 191696 4 202434 3 529922 4 231829 2 589065 8 782988 799136 2784...
output:
1 1 1 1912354 55837929819 555469 4114011 4395512 383075575661 697440 6578712 1 3592324 5566584 1217461808024 7526096 3057721 332367 1644878 1387018 601240 6287130 751655236119 3933576 4568550 22006682 6440571 31174109 5345654287240 10571127 2675341 6175225 7634985 44934887 18882319 49073254 60939115...
result:
wrong answer 5th numbers differ - expected: '3354971', found: '55837929819'