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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 |
---|---|---|---|---|---|---|---|---|---|
#314643 | #7782. Ursa Minor | Delay_for_five_minutes | WA | 71ms | 56916kb | C++20 | 5.5kb | 2024-01-26 01:50:35 | 2024-01-26 01:50:35 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
int n , m , q;
const int bs = 7797;
const int mod = (1<<31)-1;
int a[200005] ;
int st[20][200005];
int qry(int l,int r) {
int k = __lg(r - l + 1) ;
return __gcd(st[k][l] , st[k][r - (1<<k) + 1]) ;
}
int pw[200005] , prep[200005];
struct ST1 {
int pr[505] ; //前缀和
int block[200005]; // 所属块
int pre[505][505] ;///每块前缀和
int L[505] , R[505];
int a[200005];
int B;
void init() {
for(int i = 1;i <= n;i++) {
block[i] = block[i - 1];
if(B == 1 || i % B == 1) {
block[i]++ ;
R[block[i - 1]] = i - 1;
L[block[i]] = i;
}
}
R[block[n]] = n ;
for(int i = 1;i <= block[n];i++) {
for(int j = L[i] ; j <= R[i] ;j++) {
pre[i][j - L[i] + 1] = (pre[i][j - L[i]] + a[j]) % mod;
}
pr[i] = (pr[i - 1] + pre[i][R[i] - L[i] + 1]) % mod;
}
}
void upd(int pos,int v) {
a[pos] = v;
int i = block[pos] ;
for(int j = pos ; j <= R[i] ;j++) {
pre[i][j - L[i] + 1] = (pre[i][j - L[i]] + a[j]) % mod;
}
for(int j = i ; j <= block[n];j++) pr[j] = (pr[j - 1] + pre[j][R[j] - L[j] + 1]) % mod;
}
int qry(int l,int r) {
int bl = block[l] , br = block[r] ;
if(bl == br) {
return (pre[bl][r - L[bl] + 1] - pre[bl][l - L[bl]] + mod ) % mod;
}
return (((ll)pre[bl][R[bl] - L[bl] + 1] - pre[bl][l - L[bl]]
+pre[br][r - L[br] + 1] + pr[br - 1] - pr[bl])%mod + mod ) % mod;
}
}s1;
struct ST2 {
int a[200005];
int pr[505];
int B;
void init() {
int cnt = 0;
for(int i = 1;i <= n;i++) {
if(i % B == 1 || B == 1) ++cnt;
pr[cnt] = (pr[cnt] + a[i]) % mod;
}
}
void upd(int pos,int v) {
int id = (pos - 1) / B + 1;
pr[id] = ((ll)pr[id] - a[pos] + v + mod) % mod;
a[pos] = v;
return ;
}
int qry(int l,int r) {
int idl = (l - 1) / B + 1 , idr = (r - 1) / B + 1;
if(idl == idr) {
int ans = 0;
for(int j = l;j <= r;j++) ans = (ans + a[j]) % mod;
return ans;
}
int ans = 0;
if(l > idl * B - B/2) {
for(int j = l;j <= idl*B;j++) ans = (ans + a[j]) % mod;
}
else {
ans = (ans + pr[idl]) % mod;
for(int j = (idl-1)*B + 1 ; j < l;j++) ans = (ans - a[j]) % mod;
ans = (ans + mod) % mod;
}
if(r > idr*B - B/2) {
ans = (ans + pr[idr]) % mod;
for(int j = r + 1;j <= idr*B;j++) ans = (ans - a[j]) % mod;
ans = (ans + mod) % mod;
}
else{
for(int j = (idr-1)*B + 1 ; j <= r;j++) ans = (ans + a[j]) % mod;
}
for(int j = idl + 1; j <= idr - 1;j++) ans = (ans + pr[j]) % mod;
return ans;
}
}S[450];
void solv()
{
cin >> n >> m >> q;
pw[0] = 1; prep[0] = 1;
for(int i = 1;i <= n;i++) {pw[i] = 1LL * pw[i - 1] * bs % mod; prep[i] = (prep[i - 1] + pw[i]) % mod;}
for(int i = 1;i <= n;i++) {cin >> a[i] ;}
for(int i = 1;i <= m;i++) {
cin >> st[0][i] ;
}
for(int i = 1;i <= 19;i++) {
for(int j = 1;j <= m;j++) {
if(j + (1 << i - 1) <= m) st[i][j] = __gcd(st[i - 1][j] , st[i - 1][j + (1 << i - 1)]) ;
else st[i][j] = st[i - 1][j] ;
}
}
s1.B = min((int)sqrt(n) + 2 , n);
int B = sqrt(n) ;
for(int i = 1;i <= n;i++) s1.a[i] = 1LL * pw[n - i] * a[i] % mod;
s1.init() ;
for(int k = 1;k <= B;k++) {
S[k].B = min(B+2,n) ;
for(int i = 1;i <= n;i++) {
S[k].a[i] = 1LL * a[i] * pw[i % k] % mod;
if(i % k == 0) S[k].a[i] = (S[k].a[i] - 1LL * a[i] * prep[k - 1]%mod + mod) % mod;
}
S[k].init() ;
}
// puts("ojbk") ;
while(q--) {
char op ; cin >> op ;
if(op == 'Q') {
int l , r , s , t;
cin >> l >> r >> s >> t;
int k = __gcd(r - l + 1 , qry(s , t)) ;
if(k > B) {
int sum = 0;
int s0 = 0;
for(int i = 0 ; i < (r - l + 1) / k ; i++) {
sum = (sum + 1LL * s1.qry(l+ i * k , l + (i + 1)*k - 1) * pw[i * k]) % mod;
s0 = (s0 + a[l + i * k]) % mod;
}
if(l + k <= n) s0 = 1LL * s0 * (prep[n - l] - prep[n - l - k] + mod) % mod;
else s0 = 1LL * s0 * prep[n - l] % mod;
if(s0 == sum) cout << "Yes\n" ;
else cout << "No\n" ;
}
else {
int sum = S[k].qry(l , r);
if(sum == 0) cout << "Yes\n";
else cout << "No\n" ;
}
}
else {
int u , v ; cin >> u >> v;
a[u] = v;
s1.upd(u , 1LL * a[u] * pw[n - u] % mod) ;
// puts("ojbk??") ;
for(int k = 1;k <= B;k++) {
int val = 1LL * a[u] * pw[u % k] % mod;
if(u % k == 0) val = (val - 1LL * a[u] * prep[k - 1]%mod + mod) % mod;
S[k].upd(u , val);
}
// puts("ojbk") ;
}
}
return;
}
int main()
{
ios::sync_with_stdio(false) ; cin.tie(0) ; cout.tie(0) ;
int T = 1;
while(T--) solv();
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 2ms
memory: 24060kb
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: 0ms
memory: 24172kb
input:
1 1 1 0 1 Q 1 1 1 1
output:
Yes
result:
ok "Yes"
Test #3:
score: -100
Wrong Answer
time: 71ms
memory: 56916kb
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:
wrong answer 417th words differ - expected: 'Yes', found: 'No'