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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 |
---|---|---|---|---|---|---|---|---|---|
#428782 | #7782. Ursa Minor | zlxFTH | WA | 571ms | 28640kb | C++14 | 3.5kb | 2024-06-01 21:41:07 | 2024-06-01 21:41:07 |
Judging History
answer
#include <algorithm>
#include <cctype>
#include <cstdio>
#define debug(...) fprintf(stderr, __VA_ARGS__)
inline int read() {
int x = 0, f = 1, c;
while (!isdigit(c = getchar()))
if (c == '-') f = -1;
do x = x * 10 + c - '0';
while (isdigit(c = getchar()));
return x * f;
}
using LL = long long;
const int N = 2e5 + 5;
const int B = 300;
const int P = 1e9 + 7, bas = 147258369;
namespace BIT {
int n;
LL a[N];
void mdf(int x, LL v) {
for (int i = x; i <= n; i += i & -i)
a[i] += v;
}
LL qry(int x) {
LL res = 0;
for (int i = x; i > 0; i -= i & -i)
res += a[i];
return res;
}
}
inline LL qp(LL a, LL b = P - 2) {
LL c = 1;
while (b) {
if (b & 1) c = LL(c) * a % P;
a = LL(a) * a % P;
b /= 2;
}
return c;
}
int n, m, q;
int a[N];
int st[20][N], b[N];
struct Small {
LL s[N / B + 5];
void mdf(int i, LL v) {
(s[i / B] += v) %= P;
}
LL qry(int i) {
LL res = 0;
for (int j = 0; j < i / B; ++j) {
(res += s[j]) %= P;
}
return res;
}
} sm[B + 5];
struct Big {
LL s1[N], s2[N];
void mdf(int i, LL v) {
for (int j = i / B + 1; j <= n / B; ++j)
(s1[j] += v) %= P;
for (int j = i; j / B == i / B; ++j)
(s2[j] += v) %= P;
}
LL qry(int i) {
return (s1[i / B] + s2[i]) % P;
}
} bg;
LL tar[N], pw[N], ipw[N];
void init() {
ipw[0] = pw[0] = 1;
LL s = 0;
for (int i = 0; i <= n; ++i) {
ipw[i] = qp(pw[i]);
s = (s + pw[i]) % P;
tar[i] = s;
pw[i + 1] = pw[i] * bas % P;
}
for (int i = 1; i <= n; ++i) {
bg.mdf(i, pw[i] * a[i] % P);
for (int j = 1; j <= B; ++j) {
sm[j].mdf(i, pw[i % j] * a[i] % P);
}
}
}
void mdf(int p, LL v) {
bg.mdf(p, LL(pw[p]) * v % P);
for (int i = 1; i <= B; ++i) {
sm[i].mdf(p, LL(pw[p % i]) * v % P);
}
}
bool chk(int l, int r, int bv, LL s) {
if (bv <= B) {
LL var = (sm[bv].qry(r) + P - sm[bv].qry(l - 1)) % P;
for (int i = r / B * B; i <= r; ++i)
var = (var + pw[i % bv] * a[i]) % P;
for (int i = (l - 1) / B * B; i < l; ++i)
var = (var + P - pw[i % bv] * a[i] % P) % P;
return var == (s / bv) % P * tar[bv - 1] % P;
} else {
LL res = 0;
for (int i = l; i <= r; i += bv) {
LL var = (bg.qry(i + bv - 1)
+ P - bg.qry(i - 1)) * ipw[i] % P;
res = (res + var) % P;
}
return res == (s / bv) % P * tar[bv - 1] % P;
}
}
inline int get_gcd(int l, int r) {
int h = std::__lg(r - l + 1);
return std::__gcd(st[h][l], st[h][r - (1 << h) + 1]);
}
int main() {
n = read(), m = read(), q = read();
BIT::n = n;
for (int i = 1; i <= n; ++i)
BIT::mdf(i, a[i] = read());
init();
for (int i = 1; i <= m; ++i)
st[0][i] = b[i] = read();
for (int j = 1; j <= std::__lg(m); ++j)
for (int i = 1; i + (1 << j) - 1 <= m; ++i)
st[j][i] = std::__gcd(st[j - 1][i], st[j - 1][i + (1 << j - 1)]);
while (q--) {
char op = getchar();
while (!isupper(op)) op = getchar();
if (op == 'U') {
int p = read(), v = read();
BIT::mdf(p, v - a[p]);
mdf(p, v - a[p]);
a[p] = v;
} else {
int l1 = read(), r1 = read(), l2 = read(), r2 = read();
int av = r1 - l1 + 1, bv = get_gcd(l2, r2);
LL s = BIT::qry(r1) - BIT::qry(l1 - 1);
bv = std::__gcd(bv, av);
if (s % bv) puts("No");
else
printf(chk(l1, r1, bv, s) ? "Yes\n" : "No\n");
}
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 8840kb
input:
6 4 5 1 1 4 5 1 4 3 3 2 4 Q 1 5 1 2 Q 2 5 3 4 U 5 2 Q 1 6 1 2 Q 2 5 3 4
output:
Yes No No Yes
result:
ok 4 tokens
Test #2:
score: 0
Accepted
time: 1ms
memory: 8808kb
input:
1 1 1 0 1 Q 1 1 1 1
output:
Yes
result:
ok "Yes"
Test #3:
score: 0
Accepted
time: 239ms
memory: 17024kb
input:
2000 2000 200000 1 1 2 0 0 2 0 2 0 0 0 0 0 2 2 1 2 0 0 2 2 2 1 0 1 2 1 2 0 0 1 1 1 2 0 0 2 2 2 2 0 2 0 0 2 1 2 0 0 1 2 2 1 0 2 0 0 0 1 2 2 1 2 2 0 0 1 1 1 0 0 2 0 0 1 1 0 2 2 2 1 0 0 1 0 1 2 2 2 1 1 2 2 1 2 1 0 2 2 3 1 3 2 3 1 0 1 2 0 1 1 1 0 2 2 3 2 0 3 2 3 3 1 2 3 1 2 0 1 0 3 1 0 0 2 0 1 2 1 3 2 2...
output:
Yes Yes No Yes Yes No No No Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes No Yes Yes No No No No No Yes No No No Yes Yes No Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes No Yes Yes Yes No No Yes No Yes No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes No...
result:
ok 100554 tokens
Test #4:
score: 0
Accepted
time: 178ms
memory: 21864kb
input:
1 200000 200000 998244353 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
output:
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes ...
result:
ok 100240 tokens
Test #5:
score: 0
Accepted
time: 173ms
memory: 23312kb
input:
6 131072 200000 0 0 0 0 1000000000 1000000000 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ...
output:
Yes Yes Yes No No No Yes No No No No No Yes Yes No Yes No Yes Yes Yes No No No No No No No Yes No No No Yes Yes Yes Yes Yes Yes Yes Yes No No No No Yes Yes 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 Yes No No No No No No Yes Yes No Yes N...
result:
ok 100021 tokens
Test #6:
score: -100
Wrong Answer
time: 571ms
memory: 28640kb
input:
200000 200000 200000 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877...
output:
No 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 Yes No No No No No Yes Yes Yes No No No No No No No No Yes 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 No No No Yes No Yes Yes No No No No No No No No N...
result:
wrong answer 6791st words differ - expected: 'Yes', found: 'No'