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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 |
---|---|---|---|---|---|---|---|---|---|
#176335 | #5378. 匹配问题 | Xun_xiaoyao | 0 | 459ms | 42468kb | C++14 | 2.0kb | 2023-09-11 15:39:23 | 2023-09-11 15:39:23 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
int Qread()
{
int x=0;char ch=getchar();
while(ch<'0'||ch>'9') ch=getchar();
while(ch>='0'&&ch<='9') x=x*10+(ch^48),ch=getchar();
return x;
}
#define ls (pos<<1)
#define rs (pos<<1|1)
#define mid (l+r>>1)
int s[2000010],laz[2000010];
void giv_laz(int pos,int num){s[pos]+=num,laz[pos]+=num;}
void pushdown(int pos){if(laz[pos]) giv_laz(ls,laz[pos]),giv_laz(rs,laz[pos]),laz[pos]=0;}
void update(int pos){s[pos]=min(s[ls],s[rs]);}
void range_add(int L,int R,int num,int pos=1,int l=1,int r=500000)
{
if(L<=l&&r<=R) return giv_laz(pos,num);
if(r<L||R<l) return;
return pushdown(pos),range_add(L,R,num,ls,l,mid),range_add(L,R,num,rs,mid+1,r),update(pos);
}
int range_min(int L,int R,int pos=1,int l=1,int r=500000)
{
if(L<=l&&r<=R) return s[pos];
if(r<L||R<l) return 20070610;
return pushdown(pos),min(range_min(L,R,ls,l,mid),range_min(L,R,rs,mid+1,r));
}
#undef ls
#undef rs
#undef mid
int n,la,lb,x,y,ans;
int a[500010],b[500010];
typedef pair<int,int> pr;
set<pr> B;
int main()
{
n=Qread(),la=Qread(),lb=Qread();
for(int i=1;i<=n;i++) a[i]=Qread();
for(int i=1;i<=n;i++) b[i]=Qread();
sort(a+1,a+n+1),sort(b+1,b+n+1);
for(int i=1;i<=n;i++) B.insert(make_pair(b[i],i));
for(int i=1;i<=n;i++) range_add(1,a[i]+la,1);
for(int i=1;i<=n;i++) range_add(1,b[i],-1);
for(int i=n;i;i--)
{
auto it=B.upper_bound(make_pair(a[i]+la,n));
it--;x=(*it).second;
it=B.upper_bound(make_pair(a[i]+lb,n));
if(it!=B.begin()){it--;y=(*it).second;}
else y=0;
if(b[y]>=a[i]&&range_min(b[y],n)>0)
{
ans++;
range_add(1,a[i]+la,-1);
range_add(1,b[y],1);
B.erase(B.find(make_pair(b[y],y)));
}
else
{
range_add(1,a[i]+la,-1);
range_add(1,b[x],1);
B.erase(B.find(make_pair(b[x],x)));
}
}
printf("%d\n",ans);
return 0;
}
详细
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 2ms
memory: 14084kb
input:
2 2 1 1 1 1 1
output:
0
result:
wrong answer 1st lines differ - expected: '2', found: '0'
Subtask #2:
score: 0
Skipped
Dependency #1:
0%
Subtask #3:
score: 0
Skipped
Dependency #2:
0%
Subtask #4:
score: 0
Wrong Answer
Test #100:
score: 0
Wrong Answer
time: 459ms
memory: 42468kb
input:
500000 500000 10 200184 74991 71203 334998 316800 34483 120570 301054 331108 232072 189788 397143 490296 56807 361700 88818 42376 460305 371750 450351 338384 429789 426045 445029 152316 408919 188124 144966 457495 475025 225370 260510 383159 495247 54319 246245 240728 372033 439599 119720 449020 451...
output:
312192
result:
wrong answer 1st lines differ - expected: '312193', found: '312192'
Subtask #5:
score: 0
Skipped
Dependency #1:
0%