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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#857988 | #9774. Same Sum | chzhc_ | WA | 1727ms | 31524kb | C++14 | 4.0kb | 2025-01-16 11:53:15 | 2025-01-16 11:53:17 |
Judging History
answer
#include <bits/stdc++.h>
template < typename T >
inline void read(T &cnt) {
cnt = 0; char ch = getchar(); bool op = 1;
for (; ! isdigit(ch); ch = getchar())
if (ch == '-') op = 0;
for (; isdigit(ch); ch = getchar())
cnt = cnt * 10 + ch - 48;
cnt = op ? cnt : - cnt;
}
// const long long mod = 68718952447;
const long long mod = 998244353;
const int N = 2e5 + 5;
const long long X = 13331;
// inline long long quick_mul(long long a, long long b) {
// long long ret = 0;
// for (; b; b >>= 1) {
// if (b & 1) ret = (ret + a) % mod;
// a = (a + a) % mod;
// }
// return ret;
// }
inline long long quick_pow(long long a, long long b) {
long long ret = 1;
for (; b; b >>= 1) {
if (b & 1) ret = ret * a % mod;
a = a * a % mod;
}
return ret;
}
int n, q, a[N];
long long tagt[N * 4], tagx[N * 4];
struct sgt {
long long t, x, ex;
} T[N * 4];
inline void upd(int p) {
T[p].t = T[p * 2].t + T[p * 2 + 1].t;
T[p].x = (T[p * 2].x + T[p * 2 + 1].x) % mod;
T[p].ex = (T[p * 2].ex + T[p * 2 + 1].ex) % mod;
}
inline void build(int p, int l, int r) {
tagt[p] = 0;
tagx[p] = 1;
if (l == r) {
T[p].t = a[l];
long long val = quick_pow(X, a[l]);
T[p].x = val;
T[p].ex = quick_pow(val, mod - 2);
return;
}
int mid = (l + r) / 2;
build(p * 2, l, mid);
build(p * 2 + 1, mid + 1, r);
upd(p);
}
inline void psd(int p, int l, int r) {
int mid = (l + r) / 2;
// [l, mid] + [mid + 1, r]
T[p * 2].t += tagt[p] * (mid - l + 1);
T[p * 2 + 1].t += tagt[p] * (r - mid);
tagt[p * 2] += tagt[p];
tagt[p * 2 + 1] += tagt[p];
tagt[p] = 0;
T[p * 2].x = T[p * 2].x * tagx[p] % mod;
T[p * 2 + 1].x = T[p * 2 + 1].x * tagx[p] % mod;
T[p * 2].ex = T[p * 2].ex * quick_pow(tagx[p], mod - 2) % mod;
T[p * 2 + 1].ex = T[p * 2 + 1].ex * quick_pow(tagx[p], mod - 2) % mod;
tagx[p * 2] = tagx[p * 2] * tagx[p] % mod;
tagx[p * 2 + 1] = tagx[p * 2 + 1] * tagx[p] % mod;
tagx[p] = 1;
}
inline void modify(int p, int l, int r, int x, int y, int v) {
if (l >= x && r <= y) {
T[p].t += 1ll * (r - l + 1) * v;
long long val = quick_pow(X, v);
T[p].x = (T[p].x * val) % mod;
T[p].ex = (T[p].ex * quick_pow(val, mod - 2));
tagt[p] += v;
tagx[p] = tagx[p] * val % mod;
return;
}
psd(p, l, r);
int mid = (l + r) / 2;
if (x <= mid) modify(p * 2, l, mid, x, y, v);
if (y > mid) modify(p * 2 + 1, mid + 1, r, x, y, v);
upd(p);
}
inline sgt query(int p, int l, int r, int x, int y) {
if (l >= x && r <= y)
return T[p];
psd(p, l, r);
sgt sum = {0, 0, 0};
int mid = (l + r) / 2;
if (x <= mid) sum = query(p * 2, l, mid, x, y);
if (y > mid) {
sgt sum2 = query(p * 2 + 1, mid + 1, r, x, y);
sum.t += sum2.t;
sum.x = (sum.x + sum2.x) % mod;
sum.ex = (sum.ex + sum2.ex) % mod;
}
return sum;
}
inline void solve() {
read(n), read(q);
for (int i = 1; i <= n; ++ i)
read(a[i]);
build(1, 1, n);
while (q --) {
int op, l, r, v;
read(op), read(l), read(r);
if (op == 1) {
read(v);
modify(1, 1, n, l, r, v);
}
else {
sgt Q = query(1, 1, n, l, r);
// std::cout << Q.t << '\n';
Q.t *= 2;
if (Q.t % (r - l + 1) != 0) std::cout << "No\n";
else {
long long m = Q.t / (r - l + 1);
// std::cout << Q.x << ' ' << Q.ex * quick_pow(X, m) % mod << '\n';
if (Q.x == Q.ex * quick_pow(X, m) % mod)
std::cout << "Yes\n";
else std::cout << "No\n";
}
}
}
}
int main() {
// int t; read(t);
int t = 1;
while (t --) solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 7760kb
input:
8 4 1 2 3 4 5 6 7 8 2 1 8 1 1 4 4 2 1 6 2 1 8
output:
Yes No Yes
result:
ok 3 token(s): yes count is 2, no count is 1
Test #2:
score: -100
Wrong Answer
time: 1727ms
memory: 31524kb
input:
200000 200000 0 0 0 1 1 0 2 1 1 2 0 1 0 0 0 2 1 0 1 2 2 1 2 1 2 0 0 2 1 2 1 0 0 2 0 2 1 1 1 2 0 0 0 0 2 0 1 0 0 2 2 1 1 0 0 2 1 0 2 0 2 1 2 1 0 1 2 1 0 1 2 1 2 1 0 1 2 0 1 0 1 1 0 2 1 2 0 2 2 1 1 2 1 2 2 0 0 1 2 0 0 2 2 0 1 2 2 0 0 1 2 1 2 0 2 0 0 2 0 2 1 0 1 1 1 1 2 1 2 0 1 2 1 0 2 1 0 1 1 2 2 0 1 ...
output:
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 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 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 ...
result:
wrong answer expected YES, found NO [9382nd token]