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 |
---|---|---|---|---|---|---|---|---|---|
#646980 | #7434. 冷たい部屋、一人 | piggy123 | WA | 26ms | 152172kb | C++14 | 6.8kb | 2024-10-17 10:44:23 | 2024-10-17 10:44:23 |
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<ll> c2[1000005];
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=1;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]};
sz[l]=sz[r]=sz[a]+sz[a+1];
gx+=sz[a]*sz[a+1];
}
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-=((sz[tp[0]]-1)*sz[tp[0]])>>1;
ano[tp[0]]=tp[2];
ano[tp[1]]=tp[2]+1;
sz[tp[0]]=tp[3];
sz[tp[1]]=tp[4];
gx+=((tp[3]-1)*tp[3])>>1;
gx+=((tp[4]-1)*tp[4])>>1;
}
}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]--]=i;
to[cnt[mip]+1]=mi;
d[cnt[mxp]--]=i;
to[cnt[mxp]+1]=mx;
}
ll ps=0;
for (ll i=1; i<=n; i++) {
while (ps+1<=2*(N-1)&&to[ps+1]<=i)ps++;
nxt[i]=ps;
}
S2=2*(N-1)/sqrt(m)+1;
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/S2==p2[j].r/S2) {
C.init(N);
for (ll k=p2[j].l; k<=p2[j].r; k++) {
C.add(k);
}
ans[p2[j].id]+=C.gx;
} else {
c2[p2[j].r].push_back(j);
}
}
for (ll j=1; j<=2*(N-1); j++) {
for (ll k:c2[j]) {
Q[(p2[k].l-1)/S2+1].push_back(p2[k]);
}
}
ll L=1,R=0;
for (ll j=1; j<=(2*(N-1)-1)/S2+1; j++) {
ll lb=j*S2;
C.init(N);
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(),c2[j].clear();
}
}
for (ll i=1; i<=m; i++) {
cout<< ans[i]<<"\n";
}
return 0;
}
/*
■■■■■ ■■ ■■■ ■■■ ■ ■ ■ ■■■■ ■■■■
■ ■■ ■■ ■ ■■ ■ ■■ ■ ■ ■■ ■ ■■ ■■ ■
■ ■ ■■ ■ ■ ■ ■ ■ ■ ■■■ ■■ ■■ ■ ■■
■ ■ ■■ ■ ■ ■ ■ ■ ■ ■■ ■ ■■ ■■
■ ■ ■■ ■ ■ ■■ ■■ ■■ ■
■ ■■ ■■ ■ ■■■ ■ ■■■ ■■ ■■ ■■ ■■■
■■■■■ ■■ ■ ■ ■ ■ ■■ ■■ ■■ ■■
■ ■■ ■ ■ ■ ■ ■■ ■■ ■■ ■
■ ■■ ■ ■ ■ ■ ■■ ■■ ■ ■ ■■
■ ■■ ■■ ■■ ■■ ■■ ■■ ■■ ■ ■■ ■■
■ ■■ ■■■■ ■■■■ ■■ ■■ ■■■■■■ ■■■■
*/
详细
Test #1:
score: 100
Accepted
time: 11ms
memory: 116196kb
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: 8ms
memory: 114224kb
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: 11ms
memory: 116436kb
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: 12ms
memory: 114392kb
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: 15ms
memory: 116396kb
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: 16ms
memory: 141100kb
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: 24ms
memory: 143752kb
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: 26ms
memory: 152172kb
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:
9144 119 98 40 390 419 79 2107 25 3866 256 23 639 54315 452 489 112 80 457 9046 122 34888 38455 165 8776 15 16 39000 508 8304 888 2167 133 1345 3 48 4048 5 16991 4 672 130 31750 3 54 8458 38420 39933 37798 1927 11 38697 215 31749 2 69 88 9485 38258 63802 35 38398 139 454 76 381 510 187 3405 1214 956...
result:
wrong answer 1st numbers differ - expected: '31295', found: '9144'