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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 |
---|---|---|---|---|---|---|---|---|---|
#735673 | #9482. Count Pseudo-Palindromes | NKheyuxiang | TL | 2ms | 9992kb | C++14 | 1.1kb | 2024-11-11 21:13:35 | 2024-11-11 21:13:35 |
Judging History
answer
#include<bits/stdc++.h>
#define N 1000005
#define ull unsigned long long
#define gc (p1 == p2 && (p2 = (p1 = buf) + fread(buf, 1, 100000, stdin), p1 == p2) ? EOF : *p1 ++)
using namespace std;
char buf[100000], *p1, *p2;
inline int read(){
char ch;
int x = 0;
while ((ch = gc) < 48);
do x = x * 10 + ch - 48; while ((ch = gc) >= 48);
return x;
}
int n,a[N],b[N],c[N];
ull shift(ull x){
x^=(x<<11);
x^=(x>>4);
x^=(1<<5);
x^=(1>>14);
return x;
}
ull s[N];
set<int > st;
map<int ,int > mp;
long long ans[N];
int main(){
n=read();
for(int i=1;i<=2*n;i++){
a[i]=read();
if(c[a[i]]) b[c[a[i]]]=i,b[i]=c[a[i]];
c[a[i]]=i;
}
for(int i=1;i<=2*n;i++) s[i]=s[i-1]^shift(a[i]);
for(int i=1;i<=2*n;i++){
mp[s[i-1]]++;
if(i<b[i]) st.insert(i);
else st.erase(b[i]);
if(!st.empty()){
auto it=st.end();it--;
ans[*it]+=mp[s[i]^shift(a[*it])];
}
}
mp.clear();st.clear();
for(int i=2*n;i>=1;i--){
mp[s[i]]++;
if(i>b[i]) st.insert(i);
else st.erase(b[i]);
if(!st.empty()){
auto it=st.begin();
ans[*it]+=mp[s[i-1]^shift(a[*it])];
}
}
for(int i=1;i<=2*n;i++) printf("%lld ",ans[i]);
}
详细
Test #1:
score: 100
Accepted
time: 2ms
memory: 9980kb
input:
2 1 1 2 2
output:
1 2 2 1
result:
ok 4 tokens
Test #2:
score: 0
Accepted
time: 2ms
memory: 9924kb
input:
3 2 1 2 3 1 3
output:
1 2 2 2 2 1
result:
ok 6 tokens
Test #3:
score: 0
Accepted
time: 2ms
memory: 9992kb
input:
4 1 2 4 3 4 1 3 2
output:
1 2 1 2 1 3 1 1
result:
ok 8 tokens
Test #4:
score: 0
Accepted
time: 2ms
memory: 9916kb
input:
1 1 1
output:
1 1
result:
ok 2 tokens
Test #5:
score: -100
Time Limit Exceeded
input:
500000 233733 151347 468353 495903 234861 297169 312993 2734 287872 359375 79017 285205 219439 37290 409190 194953 306816 472906 123794 121028 66509 62235 385879 300188 485875 72413 167304 333428 33910 220100 151575 22575 206653 82054 111518 34032 48702 198940 6262 222529 170641 1735 38943 235003 11...