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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#522523 | #5000. Balanced Seesaw Array | yzkkai | WA | 316ms | 32020kb | C++20 | 4.0kb | 2024-08-17 00:54:11 | 2024-08-17 00:54:12 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using LL = long long;
using pii = pair<int, int>;
using pll = pair<__int128, __int128>;
#define sz(x) signed(size(x))
struct segTree {
int l, r, mid;
__int128 sum1 = 0, sum2 = 0, len = 0, tot = 0, tag1 = 1e18, tag2 = 1e18;
segTree *lson = 0, *rson = 0;
segTree(int _l, int _r) : l(_l), r(_r), mid((l + r) >> 1) {}
void pull() {
sum1 = lson->sum1 + rson->sum1;
sum2 = lson->sum2 + rson->sum2;
return;
}
void push() {
if (tag2 != 1e18) {
for (segTree* son : {lson, rson}) {
son->sum1 = tag2 * son->len;
son->sum2 = tag2 * son->tot;
son->tag1 = 1e18;
son->tag2 = tag2;
}
}
if (tag1 != 1e18) {
for (segTree* son : {lson, rson}) {
son->sum1 += tag1 * son->len;
son->sum2 += tag1 * son->tot;
if (son->tag1 == 1e18) son->tag1 = 0;
son->tag1 += tag1;
}
}
tag1 = 1e18;
tag2 = 1e18;
return;
}
void build(const vector<int>& a) {
if (r - l == 1) {
sum1 = a[l];
sum2 = 1LL * a[l] * l;
len = 1, tot = l;
return;
}
lson = new segTree(l, mid);
rson = new segTree(mid, r);
lson->build(a);
rson->build(a);
pull();
len = lson->len + rson->len;
tot = lson->tot + rson->tot;
return;
}
void add(int ql, int qr, __int128 val) {
if (l == ql && r == qr) {
sum1 += val * len;
sum2 += val * tot;
if (tag1 == 1e18) tag1 = 0;
tag1 += val;
return;
}
push();
if (qr <= mid)
lson->add(ql, qr, val);
else if (mid <= ql)
rson->add(ql, qr, val);
else {
lson->add(ql, mid, val);
rson->add(mid, qr, val);
}
pull();
return;
}
void modify(int ql, int qr, __int128 val) {
if (l == ql && r == qr) {
sum1 = val * len;
sum2 = val * tot;
tag1 = 1e18;
tag2 = val;
return;
}
push();
if (qr <= mid)
lson->modify(ql, qr, val);
else if (mid <= ql)
rson->modify(ql, qr, val);
else {
lson->modify(ql, mid, val);
rson->modify(mid, qr, val);
}
pull();
return;
}
pll query(int ql, int qr) {
if (l == ql && r == qr)
return {sum1, sum2};
if (qr <= mid)
return lson->query(ql, qr);
else if (mid <= ql)
return rson->query(ql, qr);
else {
auto [x1, y1] = lson->query(ql, mid);
auto [x2, y2] = rson->query(mid, qr);
return {x1 + x2, y1 + y2};
}
}
};
inline void solve() {
int n, q;
cin >> n >> q;
vector<int> a(n + 1);
for (int i = 1; i <= n; ++i)
cin >> a[i];
segTree *root = new segTree(1, n + 1);
root->build(a);
while (q--) {
int op, ql, qr, x;
cin >> op >> ql >> qr;
if (op == 1) {
cin >> x;
root->add(ql, qr + 1, x);
}
else if (op == 2) {
cin >> x;
root->modify(ql, qr + 1, x);
}
else {
auto [sum1, sum2] = root->query(ql, qr + 1);
sum2 -= sum1 * (ql - 1);
if (sum1 == sum2 || (sum1 != 0 && sum2 % sum1 == 0 && sum2 / sum1 >= 1 && sum2 / sum1 <= qr - ql + 1))
cout << "Yes\n";
else
cout << "No\n";
}
}
return;
}
signed main() {
cin.tie(0)->sync_with_stdio(0);
int t = 1;
while (t--)
solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3668kb
input:
3 6 1 2 3 3 1 1 3 1 3 1 1 1 2 3 1 3 2 2 2 0 3 2 3
output:
Yes No Yes Yes
result:
ok 4 lines
Test #2:
score: -100
Wrong Answer
time: 316ms
memory: 32020kb
input:
100000 451163 -18 609 -793 393 375 313 -55 -892 -446 928 -207 -390 729 -383 27 318 -400 31 -661 202 -978 212 238 -368 351 -613 -23 400 809 1000 -431 -174 -103 886 73 -150 25 820 -689 972 777 794 -36 -231 -966 632 -418 -288 -476 725 -713 -379 896 -19 -883 338 -797 937 -557 -809 -241 -539 704 44 576 -...
output:
No Yes No No No No No No Yes No No No Yes No No No No No No No No No No No No No Yes No No No Yes No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No Yes No No No No No No No No No No No No No No No No No No No No Yes No Yes No No No No No No N...
result:
wrong answer 22nd lines differ - expected: 'Yes', found: 'No'