QOJ.ac
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 |
---|---|---|---|---|---|---|---|---|---|
#647024 | #7434. 冷たい部屋、一人 | piggy123 | WA | 11ms | 129652kb | C++14 | 6.7kb | 2024-10-17 11:04:51 | 2024-10-17 11:04:51 |
Judging History
answer
#include <bits/stdc++.h>
#define ll long long
using namespace std;
ll a[500005],b[21][500005],c[21][500005],lg[500005],ans[500005],n,m;
struct qry {
ll l,r,id;
} p[500005],p2[500005];
vector<ll> col[500005],CC[500005];
const ll S=600;
ll S2=0;
struct block {
const ll B=600;
ll tag[805],z[500005];
void add(ll pos,ll v) {
z[pos]+=v;
tag[(pos-1)/B+1]+=v;
}
ll query(ll pos) {
ll v=(pos-1)/B+1,r=(n-1)/B+1,ans=0;
for (ll i=v+1; i<=r; i++)ans+=tag[i];
for (ll i=pos; i<=v*B; i++)ans+=z[i];
return ans;
}
} B;
ll getmx(ll l,ll r) {
ll k=lg[r-l+1];
return max(c[k][l],c[k][r-(1ll<<k)+1]);
}
ll getmi(ll l,ll r) {
ll k=lg[r-l+1];
return min(b[k][l],b[k][r-(1ll<<k)+1]);
}
ll v[1000005],cnt[1000005],d[1000005],nxt[1000005],to[1000005],T;
vector<qry> Q[1000005];
struct CHAIN{
ll vis[1000005],sz[1000005],ano[1000005];
array<ll,5> stk[1000005];
ll top,gx;
void init(ll len){
for (ll i=0;i<=len;i++)vis[i]=0,sz[i]=1,ano[i]=i;
top=0,gx=0;
}
void link(ll a){
ll l=ano[a],r=ano[a+1];
ano[l]=r,ano[r]=l;
stk[++top]={l,r,a,sz[a],sz[a+1]};
gx+=sz[a]*sz[a+1];
sz[l]=sz[r]=sz[a]+sz[a+1];
// cout<<"?" <<a<<" "<< sz[a]<<" "<<sz[a+1]<<"\n";
}
void add(ll pos){
vis[d[pos]]++;
if (vis[d[pos]]==2){
link(d[pos]);
}
}
void del(ll pos){
vis[d[pos]]--;
if (vis[d[pos]]==1){
redo();
}
}
void redo(){
auto tp=stk[top--];
gx-=tp[3]*tp[4];
ano[tp[0]]=tp[2];
ano[tp[1]]=tp[2]+1;
sz[tp[0]]=tp[3];
sz[tp[1]]=tp[4];
}
}C;
int main() {
cin.tie(0);
cout.tie(0);
ios::sync_with_stdio(false);
cin >> n >> m;
for (ll i=1; i<=n; i++) {
cin >> a[i];
col[a[i]].push_back(i);
}
for (ll i=1; i<=n; i++) {
if (i>1)lg[i]=lg[i>>1]+1;
cin >> b[0][i];
c[0][i]=b[0][i];
}
for (ll i=1; i<=20; i++) {
for (ll j=1; j+(1ll<<i)-1<=n; j++) {
b[i][j]=min(b[i-1][j],b[i-1][j+(1ll<<(i-1))]);
c[i][j]=max(c[i-1][j],c[i-1][j+(1ll<<(i-1))]);
}
}
for (ll i=1; i<=m; i++) {
cin >> p[i].l >> p[i].r;
p[i].id=i;
}
for (ll i=1; i<=n; i++) {
if (col[i].size()<=S) {
for (ll j=0; j<(ll)col[i].size(); j++) {
for (ll k=j+1; k<(ll)col[i].size(); k++) {
ll mi=getmi(col[i][j],col[i][k]),mx=getmx(col[i][j],col[i][k]);
CC[mx].push_back(mi);
}
}
}
}
sort(p+1,p+1+m,[](qry a,qry b) {
return a.r<b.r;
});
ll ps=0;
for (ll i=1; i<=m; i++) {
while (ps+1<=n&&ps+1<=p[i].r) {
for (ll j:CC[ps+1]) {
B.add(j,1);
}
ps++;
}
ans[p[i].id]+=B.query(p[i].l);
}
for (ll i=1; i<=n; i++) {
if (col[i].size()>S) {
T=i;
ll N=col[i].size();
vector<ll> book;
for (ll j=0; j+1<N; j++) {
ll mi=getmi(col[i][j],col[i][j+1]),mx=getmx(col[i][j],col[i][j+1]);
book.push_back(mi);
book.push_back(mx);
}
sort(book.begin(),book.end());
book.erase(unique(book.begin(),book.end()),book.end());
for (ll j=0; j+1<N; j++) {
ll mi=getmi(col[i][j],col[i][j+1]),mx=getmx(col[i][j],col[i][j+1]);
++cnt[lower_bound(book.begin(),book.end(),mi)-book.begin()+1];
++cnt[lower_bound(book.begin(),book.end(),mx)-book.begin()+1];
}
for (ll j=1; j<=(ll)book.size(); j++)cnt[j]+=cnt[j-1];
for (ll j=0; j+1<N; j++) {
ll mi=getmi(col[i][j],col[i][j+1]),mx=getmx(col[i][j],col[i][j+1]);
ll mip=lower_bound(book.begin(),book.end(),mi)-book.begin()+1;
ll mxp=lower_bound(book.begin(),book.end(),mx)-book.begin()+1;
d[cnt[mip]--]=j;
to[cnt[mip]+1]=mi;
d[cnt[mxp]--]=j;
to[cnt[mxp]+1]=mx;
}
ll ps=0;
for (ll j=1; j<=n; j++) {
while (ps+1<=2*(N-1)&&to[ps+1]<=j)ps++;
nxt[j]=ps;
}
S2=2*(N-1)/sqrt(m)+1;
// cout<<"! "<< i<<"\n";
for (ll j=1; j<=m; j++) {
p2[j].l=nxt[p[j].l-1]+1,p2[j].r=nxt[p[j].r],p2[j].id=p[j].id;
if ((p2[j].l-1)/S2==(p2[j].r-1)/S2) {
C.init(N);
for (ll k=p2[j].l; k<=p2[j].r; k++) {
C.add(k);
}
ans[p2[j].id]+=C.gx;
// cout<< p2[j].id<<":"<<C.gx<<"\n";
} else {
Q[(p2[j].l-1)/S2+1].push_back(p2[j]);
}
}
for (ll j=1; j<=(2*(N-1)-1)/S2+1; j++) {
ll lb=j*S2;
C.init(N);
ll L=lb,R=lb-1;
for (qry k:Q[j]) {
while (R<k.r)C.add(++R);
while (L>k.l)C.add(--L);
while (L<lb)C.del(L++);
ans[k.id]+=C.gx;
}
}
for (ll j=1; j<=2*(N-1); j++)cnt[j]=to[j]=nxt[j]=d[j]=0,Q[j].clear();
}
}
for (ll i=1; i<=m; i++) {
cout<< ans[i]<<"\n";
}
return 0;
}
/*
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■ ■■ ■ ■ ■ ■ ■■ ■■ ■■ ■
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■ ■■ ■■ ■■ ■■ ■■ ■■ ■■ ■ ■■ ■■
■ ■■ ■■■■ ■■■■ ■■ ■■ ■■■■■■ ■■■■
*/
详细
Test #1:
score: 100
Accepted
time: 3ms
memory: 91644kb
input:
100 100 4 1 5 1 2 1 7 5 3 7 2 3 6 6 5 3 2 2 4 1 6 5 6 2 2 2 7 6 1 3 6 3 5 6 7 6 1 2 3 3 4 2 1 1 5 4 4 3 6 7 1 1 6 1 5 6 2 3 7 4 2 4 6 7 7 3 5 3 7 2 3 3 5 1 4 7 1 2 2 5 2 2 4 3 4 7 2 7 7 3 7 3 6 6 5 4 5 4 7 6 93 52 12 70 25 36 18 37 27 99 68 40 84 3 76 57 60 19 33 41 92 87 58 13 15 43 28 63 64 59 31 ...
output:
1 0 13 71 1 1 3 7 0 0 2 1 3 20 12 6 61 24 1 0 0 2 3 19 0 0 6 2 0 0 4 1 135 0 19 1 1 29 14 39 1 0 1 7 7 0 12 3 0 1 0 1 1 5 0 28 14 19 2 1 0 0 6 5 0 0 2 7 5 1 2 2 0 1 11 1 0 1 0 10 0 0 5 1 33 1 17 2 1 22 20 1 2 0 0 16 0 1 1 15
result:
ok 100 numbers
Test #2:
score: 0
Accepted
time: 4ms
memory: 91700kb
input:
100 100 8 8 2 8 8 12 11 8 5 5 5 1 7 6 6 11 3 13 1 12 2 2 4 1 11 13 10 7 1 2 4 3 1 12 1 5 13 8 1 5 12 5 12 4 6 3 5 4 8 3 4 1 4 3 9 2 11 9 4 8 12 3 5 13 13 1 9 12 2 13 8 13 4 13 12 5 12 13 2 6 4 4 1 6 6 9 12 7 4 3 10 7 1 7 7 10 4 12 3 9 96 87 12 73 74 78 99 76 7 77 54 88 90 86 95 94 31 83 27 11 66 91 ...
output:
0 6 2 0 0 1 16 1 1 10 7 9 2 8 2 1 3 5 0 7 2 0 2 0 1 0 7 0 0 1 108 0 0 0 6 4 1 0 2 13 0 3 0 10 0 0 1 21 0 18 0 11 0 8 13 9 0 0 0 11 12 2 1 0 2 16 1 7 0 16 0 2 3 7 0 2 10 1 4 2 6 0 0 6 3 0 0 0 5 7 0 0 6 0 7 0 4 0 3 0
result:
ok 100 numbers
Test #3:
score: 0
Accepted
time: 7ms
memory: 91732kb
input:
100 100 13 4 2 1 1 2 1 39 20 1 1 1 33 1 1 1 9 37 21 7 14 58 1 3 19 29 40 56 2 1 3 1 42 1 1 13 1 3 5 4 49 1 1 8 8 3 1 14 1 1 2 6 17 3 2 2 2 9 3 1 17 90 1 1 1 1 8 14 17 16 1 33 15 20 46 22 2 20 11 1 28 3 1 4 1 17 3 9 10 2 1 2 2 6 1 1 3 17 27 2 86 82 24 49 50 32 63 20 53 11 60 1 16 27 15 14 12 88 52 17...
output:
1 84 13 0 7 4 26 1 9 1 7 3 10 0 7 3 6 4 4 0 13 1 0 4 4 0 40 22 36 0 5 6 0 37 28 213 1 6 10 4 0 3 5 0 3 5 25 2 0 1 3 12 1 39 0 8 4 2 6 0 6 4 23 17 0 0 4 13 6 6 0 0 6 10 11 30 0 7 10 10 101 0 1 0 62 0 10 100 26 4 5 1 24 0 1 4 15 3 0 6
result:
ok 100 numbers
Test #4:
score: 0
Accepted
time: 11ms
memory: 91860kb
input:
100 100 1 1 1 1 1 36 58 18 15 1 1 2 1 1 1 1 4 10 9 2 2 4 28 1 2 1 2 2 28 27 12 6 3 10 1 1 2 1 1 2 7 40 1 4 8 17 16 3 5 1 2 2 16 5 6 1 5 3 4 11 1 1 11 51 11 4 3 7 14 16 1 11 1 2 8 3 4 1 1 3 2 5 21 7 3 10 2 2 1 20 23 1 3 6 1 1 15 3 34 1 8 1 2 3 92 48 11 43 9 71 69 5 6 7 12 26 31 45 80 83 14 16 17 25 2...
output:
29 1 9 19 6 1 3 2 0 16 15 2 11 14 24 191 25 21 33 34 19 2 0 0 11 32 1 9 2 16 24 28 9 0 123 4 6 0 13 69 271 15 47 6 0 121 0 1 15 1 9 61 0 63 10 2 2 13 55 25 12 2 40 4 3 39 14 15 0 15 2 48 6 0 0 6 0 5 0 11 3 1 78 9 12 0 0 14 15 38 7 3 0 12 10 0 1 6 0 22
result:
ok 100 numbers
Test #5:
score: 0
Accepted
time: 4ms
memory: 91864kb
input:
100 100 1 15 6 12 6 13 8 8 3 5 14 5 7 13 8 1 1 3 8 5 4 7 9 1 1 7 4 14 7 5 4 6 7 5 11 6 4 14 8 11 12 9 12 14 10 12 9 14 14 11 12 12 11 8 5 11 10 6 13 5 6 4 6 15 10 2 13 12 7 15 9 14 15 1 9 9 8 4 5 2 2 5 13 14 12 5 9 13 7 12 1 1 1 7 10 5 11 4 4 6 17 65 39 50 77 97 44 15 72 11 8 59 74 14 1 3 5 68 21 4 ...
output:
24 5 0 4 0 1 0 0 2 0 2 11 0 13 12 3 19 0 0 0 5 1 0 0 14 0 9 0 1 22 7 25 44 0 7 0 0 3 27 1 0 0 8 3 0 0 2 2 18 26 63 15 2 28 0 1 8 10 18 19 4 0 0 5 0 0 3 15 5 63 5 8 29 0 14 8 7 2 3 1 1 1 2 1 6 8 0 0 19 0 20 0 3 11 0 4 6 5 55 0
result:
ok 100 numbers
Test #6:
score: 0
Accepted
time: 8ms
memory: 116544kb
input:
5000 5000 2 29 12 10 25 32 45 18 16 38 41 50 8 32 54 37 18 29 37 42 9 38 25 43 35 5 47 20 32 35 8 14 8 37 30 16 45 19 14 33 14 31 31 33 28 12 11 49 32 6 11 4 50 39 3 55 25 26 13 40 41 44 31 31 18 19 25 18 29 19 21 1 52 19 2 53 39 55 11 27 54 22 16 49 12 23 41 22 34 38 40 20 5 35 43 40 29 14 20 40 6 ...
output:
21908 618 65611 229 7839 55433 12508 4205 5 12239 31375 1958 20 2290 29810 13020 12234 5752 14318 13451 122 0 109 3852 26843 12709 11522 14307 45468 886 5020 6667 21808 3367 637 593 37 5078 2698 61 364 20500 88231 2311 39 2487 18627 3425 194 4845 54212 84095 14695 8 67509 4364 312 23989 3876 86722 1...
result:
ok 5000 numbers
Test #7:
score: 0
Accepted
time: 11ms
memory: 117004kb
input:
5000 5000 15 86 121 63 26 26 74 43 35 32 48 131 61 120 103 48 101 1 70 97 130 105 30 38 68 141 85 141 108 17 143 106 47 90 4 68 63 8 79 26 10 66 48 61 18 75 62 84 80 113 20 27 109 102 32 13 20 63 12 53 112 146 33 27 49 110 55 132 121 67 75 18 38 80 140 62 7 20 104 4 42 91 67 20 127 77 13 141 64 3 28...
output:
0 132 8 26 0 32 1 61 40 0 0 0 0 18 49 15 0 14 2 63 24 9 10 94 10 21 1 2 1 6 17 21 1 83 19 9 0 21 67 8 13 0 0 0 13 1 0 21 0 13 1 123 0 0 8 0 0 10 14 2 32 2 8 53 29 0 23 6 6 0 0 13 0 1 0 3 0 0 1 0 5 15 15 0 4 4 1 0 1 0 0 2 1 0 0 0 0 1 2 1 11 23 45 1 0 9 14 104 60 8 3 1 2 38 34 32 1 0 0 38 27 18 62 0 5...
result:
ok 5000 numbers
Test #8:
score: -100
Wrong Answer
time: 4ms
memory: 129652kb
input:
5000 5000 342 3 498 1667 87 63 8 215 1 25 67 5 7 600 1 1 51 14 6 1990 7 2707 105 637 5 805 328 74 1 57 316 236 6 1 1 700 965 2 493 21 12 2 1 1626 1 1352 11 109 1 2253 70 4 788 55 140 1 2 1 57 21 1 530 3060 62 266 86 32 1861 1 173 2 2 234 1 402 1392 101 9 7 1 8 3 8 137 46 4 17 212 1 4 10 6 1389 200 4...
output:
30883 316 170 89 954 997 237 6385 60 10461 650 35 1755 161354 1140 1314 350 227 1127 30655 411 106169 122091 476 30337 20 66 120611 1282 27912 2363 4220 327 4040 14 130 11132 1 56697 1 2042 292 103019 6 247 28248 121966 123787 119257 3471 21 122297 472 103010 4 287 167 32015 120015 182769 46 121891 ...
result:
wrong answer 1st numbers differ - expected: '31295', found: '30883'