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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#472592 | #6427. Just Another Game of Stones | Linx | WA | 2966ms | 34600kb | C++23 | 3.2kb | 2024-07-11 17:26:26 | 2024-07-11 17:26:26 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int maxn=2e5+5;
int n,q,a[maxn],op,l,r,x;
inline int read() {
int x=0,f=1;
char ch=getchar();
while(ch<'0'||ch>'9') {if(ch=='-') f=-1;ch=getchar();}
while(ch>='0'&&ch<='9') {x=(x<<1)+(x<<3)+(ch^48);ch=getchar();}
return x*f;
}
const int maxm=500+5;
int bel[maxn],st[maxm],ed[maxm];
int Max[maxm];
vector<int>qwq[maxm],Xor[maxm],sum[30][maxm];
int main() {
n=read(),q=read();
for(int i=1;i<=n;++i) a[i]=read();
int block=sqrt(n);
for(int i=1;i<=(n-1)/block+1;++i) {
st[i]=(i-1)*block+1;
ed[i]=min(i*block,n);
for(int j=st[i];j<=ed[i];++j) {
bel[j]=i;
qwq[i].push_back(a[j]);
Xor[i].push_back(0);
for(int k=0;k<=29;++k) sum[k][i].push_back(0);
}
sort(qwq[i].begin(),qwq[i].end());
for(int j=0;j<qwq[i].size();++j) {
if(j==0) {
Xor[i][j]=qwq[i][j];
for(int k=0;k<=29;++k) sum[k][i][j]=((qwq[i][j]>>k)&1);
}
else {
Xor[i][j]=(Xor[i][j-1]^qwq[i][j]);
for(int k=0;k<=29;++k) sum[k][i][j]=((qwq[i][j]>>k)&1)+sum[k][i][j-1];
}
}
}
while(q--) {
op=read(),l=read(),r=read(),x=read();
if(op==1) {
int s=bel[l]+1,t=bel[r]-1;
for(int i=s;i<=t;++i) Max[i]=max(Max[i],x);
for(int i=st[s-1];i<=ed[s-1];++i) {
a[i]=max(a[i],Max[s-1]);
if(l<=i&&i<=r) a[i]=max(a[i],x);
qwq[s-1][i-st[s-1]]=a[i];
}
Max[s-1]=0;
sort(qwq[s-1].begin(),qwq[s-1].end());
for(int i=0;i<qwq[s-1].size();++i) {
if(i==0) {
Xor[s-1][i]=qwq[s-1][i];
for(int k=0;k<=29;++k) sum[k][s-1][i]=((qwq[s-1][i]>>k)&1);
}
else {
Xor[s-1][i]=(Xor[s-1][i-1]^qwq[s-1][i]);
for(int k=0;k<=29;++k) sum[k][s-1][i]=((qwq[s-1][i]>>k)&1)+sum[k][s-1][i-1];
}
}
if(bel[l]!=bel[r]) {
for(int i=st[t+1];i<=ed[t+1];++i) {
a[i]=max(a[i],Max[t+1]);
if(l<=i&&i<=r) a[i]=max(a[i],x);
qwq[t+1][i-st[t+1]]=a[i];
}
Max[t+1]=0;
sort(qwq[t+1].begin(),qwq[t+1].end());
for(int i=0;i<qwq[t+1].size();++i) {
if(i==0) {
Xor[t+1][i]=qwq[t+1][i];
for(int k=0;k<=29;++k) sum[k][t+1][i]=((qwq[t+1][i]>>k)&1);
}
else {
Xor[t+1][i]=(Xor[t+1][i-1]^qwq[t+1][i]);
for(int k=0;k<=29;++k) sum[k][t+1][i]=((qwq[t+1][i]>>k)&1)+sum[k][t+1][i-1];
}
}
}
}
else {
int s=bel[l]+1,t=bel[r]-1;
int tmp=0;
for(int i=s;i<=t;++i) {
int p=upper_bound(qwq[i].begin(),qwq[i].end(),Max[i])-qwq[i].begin();
int len=qwq[i].size();
tmp^=(Xor[i][len-1]^Xor[i][p-1]);
if(p&1) tmp^=Max[i];
}
for(int i=l;i<=min(r,ed[s-1]);++i) tmp^=max(a[i],Max[s-1]);
if(bel[l]!=bel[r]) {
for(int i=st[t+1];i<=r;++i) tmp^=max(a[i],Max[t+1]);
}
tmp^=x;
if(tmp==0) puts("0");
else {
int js=-1;
while(tmp) js++,tmp>>=1;
int ans=0;
for(int i=l;i<=min(r,ed[s-1]);++i) if(max(a[i],Max[s-1])&(1<<js)) ans++;
if(bel[l]!=bel[r]) {
for(int i=st[t+1];i<=r;++i) if(max(a[i],Max[t+1])&(1<<js)) ans++;
}
for(int i=s;i<=t;++i) {
int p=upper_bound(qwq[i].begin(),qwq[i].end(),Max[i])-qwq[i].begin();
int len=qwq[i].size();
if(Max[i]&(1<<js)) ans+=p;
ans+=sum[js][i][len-1]-sum[js][i][p-1];
}
printf("%d\n",ans);
}
}
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3984kb
input:
5 4 1 2 1 4 1 2 1 3 1 1 2 4 3 2 2 4 4 2 1 4 4
output:
1 0 3
result:
ok 3 number(s): "1 0 3"
Test #2:
score: -100
Wrong Answer
time: 2966ms
memory: 34600kb
input:
200000 200000 962352030 173642520 1008864183 74920228 684681800 500911321 1001441054 257633652 185843534 59168654 317689197 731348417 123888883 708119712 340055368 876566011 980078202 969174443 814012870 715639041 596932238 173757742 314504576 1045746913 740811577 570187156 999816627 12441059 122507...
output:
38888 57352 46658 19708 34617 138246 1210 754 16086 26119 14051 12263 33399 14362 41869 21116 97277 16732 64611 737 32715 25031 148858 17394 76262 56260 19825 93349 48428 22290 31645 9832 35195 95623 184389 39320 152 6067 6495 25369 9041 35784 39782 111236 151543 54288 121169 165785 101803 101821 15...
result:
wrong answer 1st numbers differ - expected: '38889', found: '38888'