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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#283110 | #7765. Xor Master | maoyiting | 0 | 382ms | 58640kb | C++14 | 2.5kb | 2023-12-13 20:50:51 | 2023-12-13 20:50:51 |
Judging History
answer
#include<bits/stdc++.h>
#define ll unsigned long long
using namespace std;
const int N=5e5+5,M=N<<2;
int n,m,len[M],op,x,l,r;
ll v,a[N],s[N],c[N],b[N],*val[M],tg[M],tmp[N<<3],*id=tmp;
void upd(int p,ll v){
tg[p]^=v;
ll x=0;
for(int i=0;i<len[p];i++){
if(len[p]>>i&1)
tie(val[p][i],x)=make_pair(val[p][i]^v^x,x&val[p][i]&v);
else
tie(val[p][i],x)=make_pair(val[p][i]^x,(x|val[p][i])&v);
}
}
void down(int p){
if(tg[p]) upd(p<<1,tg[p]),upd(p<<1|1,tg[p]),tg[p]=0;
}
void push(int p){
ll x=0,*lc=val[p<<1],*rc=val[p<<1|1];
for(int i=0;i<len[p];i++)
val[p][i]=lc[i]^rc[i]^x,
x=(lc[i]&rc[i])|(lc[i]&x)|(rc[i]&x);
}
void build(int p,int l,int r){
while((1<<len[p])<=r-l+1) len[p]++;
val[p]=id,id+=len[p]+1;
if(l==r){val[p][0]=s[l];return ;}
int mid=(l+r)/2;
down(p);
build(p<<1,l,mid);
build(p<<1|1,mid+1,r);
push(p);
}
void reset(int p,int l,int r){
if(l==r){val[p][0]=max(val[p][0],val[p][0]^v);return ;}
int mid=(l+r)/2;
down(p);
reset(p<<1,l,mid);
reset(p<<1|1,mid+1,r);
push(p);
}
void modify(int p,int l,int r,int lx,int rx,ll v){
if(l>=lx&&r<=rx) return upd(p,v);
int mid=(l+r)/2;
down(p);
if(lx<=mid) modify(p<<1,l,mid,lx,rx,v);
if(rx>mid) modify(p<<1|1,mid+1,r,lx,rx,v);
push(p);
}
ll query(int p,int l,int r,int lx,int rx){
ll ans=0;
if(l>=lx&&r<=rx){
for(int i=0;i<len[p];i++) ans+=val[p][i]<<i;
return ans;
}
int mid=(l+r)/2;
down(p);
if(lx<=mid) ans=query(p<<1,l,mid,lx,rx);
if(rx>mid) ans+=query(p<<1|1,mid+1,r,lx,rx);
return ans;
}
signed main(){
scanf("%d%d",&n,&m);
auto upd=[&](int x,ll y){
for(int i=x;i<=n;i+=i&(-i)) c[i]^=y;
};
auto sum=[&](int x){
ll ans=0;
for(int i=x;i>=1;i-=i&(-i)) ans^=c[i];
return ans;
};
for(int i=1;i<=n;i++)
scanf("%llu",&a[i]),s[i]=s[i-1]^a[i],upd(i,a[i]);
build(1,1,n);
auto insert=[&](ll &x){
for(int i=63;i>=0;i--) if(x>>i&1){
if(!b[i]){
b[i]=x;
for(int j=i-1;j>=0;j--) if(b[i]>>j&1) b[i]^=b[j];
for(int j=i+1;j<=63;j++) if(b[j]>>i&1) b[j]^=b[i];
return 1;
}
else x^=b[i];
}
return 0;
};
auto qryh=[&](ll x){
for(int i=63;i>=0;i--) x=min(x,x^b[i]);
return x;
};
while(m--){
scanf("%d",&op);
if(op==1)
scanf("%d%llu",&x,&v),
upd(x,v),modify(1,1,n,x,n,qryh(v));
if(op==2){
scanf("%llu",&v);
if(insert(v)) reset(1,1,n);
}
if(op==3){
scanf("%d%d",&l,&r),v=qryh(sum(l-1));
modify(1,1,n,l,r,v);
printf("%lld\n",query(1,1,n,l,r));
modify(1,1,n,l,r,v);
}
}
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: 3ms
memory: 5908kb
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:
939900447595 3626355692726 1758813730619 806442991239 321130462705 1699218154542 669763567816 1446781652266 1122900887382 594830426746 1348567121294 577048801927 2274752405990 935865280113 2993407812974 3553201664140 2846461841674 1739088176540 914944228641 241113644850 3227617135361 1860720214960 1...
result:
wrong answer 1st lines differ - expected: '867006634793', found: '939900447595'
Subtask #2:
score: 0
Wrong Answer
Test #5:
score: 0
Wrong Answer
time: 382ms
memory: 58640kb
input:
500000 100000 12261386944926786495 7846697792998647383 16622924885320463714 170129022271213944 12625257523700625864 7684671687986103560 11532026873918423068 1131776055566669037 8263146651412710501 17872572061246021001 5017109039248728310 11088626167542318645 13810119722795416818 10928315716094262229...
output:
-1261711370135313605 -8273462611451666156 8603244633435200781 694610885162907339 6960626187549258231 6624125181438602206 52748557835967711 5169037328080659288 -7955086376362935848 59308499876315728 -6663568473504659147 2217829093079335741 -7799993970023901493 -8030326982153455695 -696554341756997605...
result:
wrong answer 1st lines differ - expected: '12337138966997790840', found: '-1261711370135313605'
Subtask #3:
score: 0
Skipped
Dependency #2:
0%
Subtask #4:
score: 0
Wrong Answer
Test #15:
score: 0
Wrong Answer
time: 112ms
memory: 16812kb
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:
208755389215975 125497785366837 162446748431411 63166834945113 33018804920229 89343160639243 36805816758195 40790494641758 13928126471189 267168502433672 191989403472418 276350936750564 11189666657474 133862444125402 92684260245650 179275392898572 46159208957881 232612971657325 184946588056252 11022...
result:
wrong answer 705th lines differ - expected: '301617306331507', found: '299390159446273'
Subtask #5:
score: 0
Skipped
Dependency #4:
0%
Subtask #6:
score: 0
Skipped
Dependency #1:
0%
Subtask #7:
score: 0
Skipped
Dependency #1:
0%