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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#269099 | #7765. Xor Master | songziyan | 0 | 216ms | 114756kb | C++14 | 3.7kb | 2023-11-29 12:37:45 | 2023-11-29 12:37:46 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define gc getchar
// char buf[1<<22],*p1,*p2;
// #define gc() (p1==p2&&(p2=(p1=buf)+fread(buf,1,1<<22,stdin),p1==p2)?0:*p1++)
inline int read(){
int x=0,f=1;char ch=gc();
while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=gc();}
while(ch>='0'&&ch<='9')x=(x<<3)+(x<<1)+ch-48,ch=gc();
return x*f;
}
#define rd read()
#define pb push_back
#define mk make_pair
#define pii pair<int,int>
#define ull unsigned long long
const int N=5e5+5;
int n,q,a[N],g[N];
struct basis{
ull s[70];
ull insert(ull x){
for(int i=63;i>=0;i--)if((x>>i)&1){
if(!s[i]){
for(int j=i-1;j>=0;j--)
if((x>>j)&1)x^=s[j];
s[i]=x;
for(int j=63;j>i;j--)
if((s[j]>>i)&1)s[j]^=x;
return x;
}
x^=s[i];
}
return 0;
}
ull qrymin(ull x){
for(int i=63;i>=0;i--)x=min(x,x^s[i]);
return x;
}
ull qrymax(ull x){
for(int i=63;i>=0;i--)x=max(x,x^s[i]);
return x;
}
}bas;
struct bit{
ull a[N];
void add(int x,ull v){
for(;x<=n;x+=(x&(-x)))
a[x]^=v;
}
ull sum(int x){
ull res=0;
for(;x;x-=(x&(-x)))
res^=a[x];
return res;
}
void init(){
memset(a,0,sizeof(a));
}
}c;
struct tree{
#define lc x<<1
#define rc x<<1|1
ull tmp[N<<4],*p=tmp;
ull *tr[N<<2],tag[N<<2],sum[N<<2];
int tot[N<<2],len[N<<2];
void pushup(int x){
ull k=0;
for(int i=0;i<tot[x];i++){
tr[x][i]=tr[lc][i]^tr[rc][i]^k;
k=(tr[lc][i]&tr[rc][i])|(tr[lc][i]&k)|(tr[rc][i]&k);
}
sum[x]=sum[lc]+sum[rc];
}
void addtag(int x,ull v){
tag[x]^=v;
sum[x]=0;
ull k=0;
for(int i=0;i<tot[x];i++){
ull t=k;
if((len[x]>>i)&1){
k=k&(tr[x][i]&v);
tr[x][i]=tr[x][i]^t^v;
}else{
k=k|(tr[x][i]&v);
tr[x][i]=tr[x][i]^t;
}
sum[x]+=(tr[x][i]<<i);
}
}
void pushdown(int x){
if(tag[x]){
addtag(lc,tag[x]);
addtag(rc,tag[x]);
tag[x]=0;
}
}
void build(int x,int l,int r){
tag[x]=0;
len[x]=r-l+1;
while((1<<tot[x])<=(r-l+1))++tot[x];
tr[x]=p;p+=tot[x]+5;
if(l==r){
tr[x][0]=sum[x]=bas.qrymax(g[l]);
return;
}
int mid=(l+r)>>1;
build(lc,l,mid);
build(rc,mid+1,r);
pushup(x);
}
void upd(int x,int l,int r,int ql,int qr,ull v){
if(!v)return;
if(ql<=l&&r<=qr)return addtag(x,v);
pushdown(x);
int mid=(l+r)>>1;
if(ql<=mid)upd(lc,l,mid,ql,qr,v);
if(qr>mid)upd(rc,mid+1,r,ql,qr,v);
pushup(x);
}
ull qry(int x,int l,int r,int ql,int qr){
if(ql<=l&&r<=qr)return sum[x];
pushdown(x);
int mid=(l+r)>>1;
ull res=0;
if(ql<=mid)res+=qry(lc,l,mid,ql,qr);
if(qr>mid)res+=qry(rc,mid+1,r,ql,qr);
return res;
}
void rbuild(int x,int l,int r){
tag[x]=0;
if(l==r){
tr[x][0]=sum[x]=bas.qrymax(g[l]);
return;
}
int mid=(l+r)>>1;
rbuild(lc,l,mid);
rbuild(rc,mid+1,r);
pushup(x);
}
}T;
void init(){
scanf("%lld%lld",&n,&q);
for(int i=1;i<=n;i++)
scanf("%lld",&a[i]);
for(int i=1;i<=n;i++){
g[i]=g[i-1]^a[i];
c.add(i,a[i]);
}
T.build(1,1,n);
}
void opt1(int x,ull v){
a[x]^=v;
c.add(x,v);
T.upd(1,1,n,x,n,bas.qrymin(v));
}
void opt2(ull v){
if(bas.insert(v)){
c.init();
for(int i=1;i<=n;i++){
g[i]=g[i-1]^a[i];
c.add(i,a[i]);
}
T.rbuild(1,1,n);
}
}
ull opt3(int ql,int qr){
return c.sum(qr)^c.sum(ql-1);
ull pre=c.sum(ql-1);
ull v=bas.qrymin(pre);
T.upd(1,1,n,ql,qr,v);
ull ans=T.qry(1,1,n,ql,qr);
T.upd(1,1,n,ql,qr,v);
return ans;
}
signed main(){
init();
while(q--){
int op,x,l,r;ull v;
scanf("%lld",&op);
if(op==1){
scanf("%lld%llu",&x,&v);
opt1(x,v);
}
if(op==2){
scanf("%llu",&x);
opt2(x);
}
if(op==3){
scanf("%lld%lld",&l,&r);
printf("%llu\n",opt3(l,r));
}
}
return 0;
}
/*
*/
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 20328kb
input:
2000 2000 1860495733 462603674 3739839441 759356520 47330263 550811730 2301200895 989240351 2499503801 2624225494 2123076812 1180966826 238739434 488666688 784742950 2583466952 4111371941 2335988605 2583741355 933716686 1644403538 1970423306 304500250 905101643 1814942168 1136358764 88729799 1577263...
output:
3213624242 3444300315 3595246440 696466611 2557661524 3427296220 3956257230 3983053850 1451141561 226361022 2702066020 2822932398 2562975268 531833879 4268628815 2986831416 1237902697 1694198333 1886306139 1897546427 3516354092 2392297460 637771257 3769837667 3438587025 2654123074 1282478190 3021289...
result:
wrong answer 1st lines differ - expected: '867006634793', found: '3213624242'
Subtask #2:
score: 0
Wrong Answer
Test #5:
score: 0
Wrong Answer
time: 112ms
memory: 114756kb
input:
500000 100000 12261386944926786495 7846697792998647383 16622924885320463714 170129022271213944 12625257523700625864 7684671687986103560 11532026873918423068 1131776055566669037 8263146651412710501 17872572061246021001 5017109039248728310 11088626167542318645 13810119722795416818 10928315716094262229...
output:
6566004636884684628 7870278618802860141 5433221939737249722 3702123664448626083 1755500958947592899 5961792793954628036 5379047820617060532 80349306065927576 4855717751406776773 3710909784291080050 5899651258155105609 3807863575189428129 5714369802056979004 5646328496025441354 1327882308325148173 47...
result:
wrong answer 1st lines differ - expected: '12337138966997790840', found: '6566004636884684628'
Subtask #3:
score: 0
Skipped
Dependency #2:
0%
Subtask #4:
score: 0
Wrong Answer
Test #15:
score: 0
Wrong Answer
time: 216ms
memory: 46236kb
input:
100000 100000 860905160 3192911636 290327446 2020707113 959258245 454185039 421895589 1070265496 2218913641 1684685660 1206723673 2606734467 4247254571 3341954386 3805299640 1702270353 2472053741 2816060613 1307901348 2702949728 879391505 884661815 330738731 1575749344 1239158446 2099693858 67466644...
output:
2181163442 3751333615 555294805 3974539418 929837462 4012453553 1584851917 425070733 3441947609 3260317336 3638202479 545749439 2389087638 2690429642 3514609821 3385288634 2495311746 3159540234 3263162831 3658076028 3868571787 44086123 2134275072 1544536157 1136328607 326920643 2409036346 504617706 ...
result:
wrong answer 1st lines differ - expected: '208755389215975', found: '2181163442'
Subtask #5:
score: 0
Skipped
Dependency #4:
0%
Subtask #6:
score: 0
Skipped
Dependency #1:
0%
Subtask #7:
score: 0
Skipped
Dependency #1:
0%