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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 |
---|---|---|---|---|---|---|---|---|---|
#369952 | #7782. Ursa Minor | 1234huang | WA | 0ms | 14644kb | C++20 | 4.5kb | 2024-03-28 20:01:03 | 2024-03-28 20:01:04 |
Judging History
answer
#include <bits/stdc++.h>
#define ull unsigned long long
using namespace std;
inline int read() {
int x = 0, f = 0; char ch = getchar();
while (ch < '0' or ch > '9') f |= (ch == '-'), ch = getchar();
while (ch >= '0' and ch <= '9') x = (x << 1) + (x << 3) + (ch ^ 48), ch = getchar();
return f ? -x : x;
}
int __stk[128], __top;
inline void write(int x) {
if(x < 0) putchar('-'), x = -x;
do { __stk[++__top] = x % 10, x /= 10; } while (x);
while (__top) putchar(__stk[__top--] + '0');
}
const int mod = 998244353;
void Min(int &x, int y) { y < x and (x = y); }
void Max(int &x, int y) { y > x and (x = y); }
void inc(int &x, int y) { (x += y) >= mod and (x -= mod); }
void mul(int &x, int y) { x = 1ll * x * y % mod; }
int q_pow(int x, int k) { int res = 1; for (; k; k >>= 1, mul(x, x)) if (k & 1) mul(res, x); return res; }
bool stmer;
const int N = 2e5 + 10, M = 500, BL = 447;
const ull base = 127;
int n, m, q;
ull a[N], b[N], s[N];
namespace ST {
const int LG = 20;
int lg[N], st[LG][N];
void init() {
for (int i = 2; i <= m; i++) lg[i] = lg[i >> 1] + 1;
for (int i = 1; i < LG; i++) for (int j = 1; j + (1 << i) - 1 <= m; j++)
st[i][j] = __gcd(st[i - 1][j], st[i - 1][j + (1 << i - 1)]);
}
int ask(int l, int r) {
int h = lg[r - l + 1];
return __gcd(st[h][l], st[h][r - (1 << h) + 1]);
}
}
namespace Block1 {
ull S1[M][M], S2[M][M];
void init() {
for (int bl = 1; bl < BL; bl++) for (int i = 1; i <= n; i++) {
int id = i / BL; ull w = a[i] * b[i % bl];
S1[bl][id] += w, S2[bl][id] += (i % bl ? 0 : w);
}
}
void modify(int p, ull v) {
for (int bl = 1; bl < BL; bl++) {
int id = p / BL; ull w = (v - a[p]) * b[p % bl];
S1[bl][id] += w, S2[bl][id] += (p % bl ? 0 : w);
}
}
bool query(int l, int r, int k) {
int L = l / BL + 1, R = r / BL - 1; ull res = 0, s0 = 0, w;
for (int i = L; i <= R; i++) res += S1[k][i], s0 += S2[k][i];
while (l <= min(L * BL - 1 , r)) res += (w = a[l] * b[l % k]), s0 += (l++ % k ? 0 : w);
while (r >= max(R * BL + BL, l)) res += (w = a[r] * b[r % k]), s0 += (r-- % k ? 0 : w);
return res == s0 * s[k - 1];
}
}
namespace Block2 {
ull S1[M][M], S2[M];
void init() {
for (int i = 1; i <= n; i++) {
int id = i / BL;
S2[id] += (S1[id][i % BL] = a[i] * b[i]);
}
for (int i = 0; i <= n / BL; i++) {
for (int j = 1; j < BL; j++) S1[i][j] += S1[i][j - 1];
if (i) S2[i] += S2[i - 1];
}
}
void modify(int p, ull v) {
int id = p / BL; ull w = v * b[p] - a[p] * b[p];
for (int i = p % BL; i < BL; i++) S1[id][i] += w;
for (int i = id; i <= n / BL; i++) S2[i] += w;
}
ull ask(int l, int r) {
ull res = (r < BL ? 0 : S2[r / BL - 1]) - (l < BL ? 0 : S2[l / BL - 1]);
return res + S1[r / BL][r % BL] - (l % BL ? S1[l / BL][l % BL - 1] : 0);
}
bool query(int l, int r, int k) {
ull res = 0, s0 = 0;
while (l <= r) {
res = res * b[k] + ask(l, l + k - 1);
s0 += a[l], l += k;
}
return res == s0 * s[k - 1] * b[l - k];
}
}
bool edmer;
signed main() {
// freopen("gym104869F.in", "r", stdin);
// freopen("gym104869F.out", "w", stdout);
cerr << "[Memory] " << (&stmer - &edmer) / 1024 / 1024 << " MB\n";
n = read(), m = read(), q = read();
for (int i = 1; i <= n; i++) a[i] = read();
for (int i = 1; i <= m; i++) ST :: st[0][i] = read();
ST :: init(), b[0] = s[0] = 1;
for (int i = 1; i < N; i++) s[i] = s[i - 1] + (b[i] = b[i - 1] * base);
Block1 :: init(), Block2 :: init();
while (q--) {
char ch = getchar();
while (ch != 'U' and ch != 'Q') ch = getchar();
if (ch == 'U') {
int p = read(), v = read();
Block1 :: modify(p, v), Block2 :: modify(p, v), a[p] = v;
}
else {
int l = read(), r = read(), s = read(), t = read();
int k = __gcd(r - l + 1, ST :: ask(s, t));
cout << l << ' ' << r << ' ' << k << '\n';
if (k < BL) puts(Block1 :: query(l, r, k) ? "Yes" : "No");
else puts(Block2 :: query(l, r, k) ? "Yes" : "No");
}
}
cerr << "[Runtime] " << (double) clock() / CLOCKS_PER_SEC << " seconds\n";
return 0;
}
详细
Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 14644kb
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:
1 5 1 Yes 2 5 2 No 1 6 3 No 2 5 2 Yes
result:
wrong answer 1st words differ - expected: 'Yes', found: '1'