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ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#281164 | #7765. Xor Master | songziyan | 0 | 377ms | 71040kb | C++14 | 3.5kb | 2023-12-09 22:34:59 | 2023-12-09 22:35:00 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
#define ull unsigned long long
const int N=5e5+5;
int n,q;
ull a[N],g[N];
ull min(ull x,ull y){return x<y?x:y;}
ull max(ull x,ull y){return x>y?x:y;}
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];
if(l==r){
tr[x][0]=/*sum[x]=*/bas.qrymax(g[l]);
//printf("%llu ",tr[x][0]);
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){
ull res=0;
for(int i=0;i<tot[x];i++)
res+=(tr[x][i]<<i);
return res;
}
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("%llu",&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){
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: 17108kb
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:
976191827631 3867537073687 2104509992109 751540417039 257445000899 2193504150522 658792719098 1298284884437 1077600229340 634380064074 1531018465983 968003981645 3130274729757 806517798360 2448660981548 3189560655140 2846014663480 2133937353619 907078194451 276084772755 2996864003491 1373092952310 1...
result:
wrong answer 1st lines differ - expected: '867006634793', found: '976191827631'
Subtask #2:
score: 0
Wrong Answer
Test #5:
score: 0
Wrong Answer
time: 377ms
memory: 71040kb
input:
500000 100000 12261386944926786495 7846697792998647383 16622924885320463714 170129022271213944 12625257523700625864 7684671687986103560 11532026873918423068 1131776055566669037 8263146651412710501 17872572061246021001 5017109039248728310 11088626167542318645 13810119722795416818 10928315716094262229...
output:
12966267075942980396 7439272392091877222 18243894721124940165 8847281310341967738 16280249377763261225 10113443012826888774 18340989594556073671 16310408883015792979 16585446015367315524 9379735749904252342 17510957337408845651 1448830036520627097 10983209965581500519 3214638554141151401 18215998623...
result:
wrong answer 1st lines differ - expected: '12337138966997790840', found: '12966267075942980396'
Subtask #3:
score: 0
Skipped
Dependency #2:
0%
Subtask #4:
score: 0
Wrong Answer
Test #15:
score: 0
Wrong Answer
time: 238ms
memory: 29312kb
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:
254679179439323 120693012661611 202098814240683 59510732730279 42336703215573 98600462072325 39362822050093 43547771813364 20251926440929 294504007928306 214085043005108 277128936811106 13102126771386 114976643268040 86072446228464 202699323890302 44316201804361 260658707687801 206784437091886 98880...
result:
wrong answer 1st lines differ - expected: '208755389215975', found: '254679179439323'
Subtask #5:
score: 0
Skipped
Dependency #4:
0%
Subtask #6:
score: 0
Skipped
Dependency #1:
0%
Subtask #7:
score: 0
Skipped
Dependency #1:
0%