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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#62386 | #4596. Ironforge | qinjianbin | WA | 434ms | 46720kb | C++ | 4.0kb | 2022-11-18 17:29:39 | 2022-11-18 17:29:42 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e5 + 10;
int pr[MAXN], p_sz;
bool vis[MAXN];
void init() {
for (int i = 2; i < MAXN; i++) {
if (!vis[i]) pr[p_sz++] = i;
for (int j = 0; j < p_sz; j++) {
if (pr[j] * i >= MAXN) break;
vis[pr[j] * i] = 1;
if (i % pr[j] == 0) break;
}
}
}
void change(int num, set<int> &st) {
int t = sqrt(num + 0.5);
for (int i = 0; pr[i] <= t; i++) {
if (num % pr[i] == 0) {
st.insert(pr[i]);
while (num % pr[i] == 0)
num /= pr[i];
}
}
if (num > 1) st.insert(num);
}
int T, n, m;
struct Node {
int l, r;
int ll, rr;
set<int> st;
Node(int l = 0, int r = 0, int ll = 0, int rr = 0) : l(l), r(r), ll(ll), rr(rr) {}
void init() {
st.clear();
l = r = ll = rr = 0;
}
} a[MAXN];
struct BNode {
int num;
int l, r;
void init() {
l = r = 0;
}
} b[MAXN];
map<int, int> mp;
void fun() { // update a[].l, a[].r
for (int i = n; i >= 1; i--) {
int ind = i;
while (ind < n && b[ind].l >= i) { // 需要的在起点的右边
ind = a[ind + 1].r;
}
a[i].r = ind;
}
for (int i = 1; i <= n; i++) {
int ind = i;
while (ind - 1 > 0 && b[ind - 1].r <= i) {
ind = a[ind - 1].l;
}
a[i].l = ind;
}
}
void solve() {
scanf("%d%d", &n, &m);
for (int i = 1; i <= n; i++)
a[i].init(), b[i].init();
int tmp;
for (int i = 1; i <= n; i++) {
scanf("%d", &tmp);
change(tmp, a[i].st);
a[i].l = a[i].r = a[i].ll = a[i].rr = i;
// printf("qweqwr ");
// for (auto it: a[i].st)
// printf("%d ", it);
// puts("");
}
for (int i = 1; i < n; i++)
scanf("%d", &b[i].num);
mp.clear();
for (int i = 1; i <= n; i++) {
for (auto it : a[i].st) {
mp[it] = i;
}
if (i != n) {
if (mp.count(b[i].num))
b[i].l = mp[b[i].num];
else
b[i].l = 0;
}
}
mp.clear();
for (int i = n; i >= 1; i--) {
for (auto it : a[i].st)
mp[it] = i;
if (i != 1) {
if (mp.count(b[i - 1].num))
b[i - 1].r = mp[b[i - 1].num];
else
b[i - 1].r = n + 1;
}
}
// for (int i = 1; i < n; i++)
// printf("%d %d\n", b[i].l, b[i].r);
fun();
a[1].ll = a[1].l, a[1].rr = a[1].r;
for (int i = 2; i <= n; i++) {
if (a[i - 1].rr >= i && a[i].l <= i - 1) {
a[i].ll = a[i - 1].ll;
a[i].rr = a[i - 1].rr;
} else {
int indr = a[i].r;
int indl = a[i - 1].ll;
if (a[i].l >= i) indl = a[i].l;
while (1) {
bool flag = false;
while (indr < n && b[indr].l >= indl) {
indr = a[indr + 1].r;
flag = true;
}
while (indl - 1 > 0 && b[indl - 1].r <= indr) {
indl = a[indl - 1].ll;
indr = max(indr, a[indl - 1].rr);
flag = true;
}
if (!flag) break;
}
a[i].ll = indl;
a[i].rr = indr;
}
}
int x, y;
// printf("dadfad ");
// for (int i = 1; i <= n; i++)
// printf("%d %d\n", a[i].ll, a[i].rr);
for (int i = 1; i <= m; i++) {
scanf("%d%d", &x, &y);
if (i == 20) printf("%d %d\n", x, y);
// if (y >= a[x].ll && y <= a[x].rr)
// puts("Yes");
// else
// puts("No");
}
}
int main() {
#ifdef TanJI
freopen("D:\\Cpp\\1.in", "r", stdin);
freopen("D:\\Cpp\\1.out", "w", stdout);
#endif
init();
scanf("%d", &T);
while (T--) {
solve();
}
return 0;
}
Details
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Test #1:
score: 0
Wrong Answer
time: 434ms
memory: 46720kb
input:
3 199997 200000 4147 247 11 1 19 1 11 11 13 19 377 377 4147 319 19 11 13 29 13 1 19 13 11 6061 13 143 551 4147 247 13 29 6061 13 319 377 2717 29 11 247 319 551 247 29 19 551 11 13 377 29 377 19 1 2717 247 1 29 11 1 19 143 29 11 377 143 4147 2717 4147 247 7163 1 209 551 13 1 1 551 13 143 209 143 13 1...
output:
128001 131142 145508 29563 107517 178082
result:
wrong answer 1st lines differ - expected: 'No', found: '128001 131142'