BZOJ 2223 Coci2009 PATULJCI

2223: [Coci 2009]PATULJCI

Time Limit: 10 Sec  Memory Limit: 259 MB
Submit: 1270  Solved: 541
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Description

Input

 

Output

10 3 1 2 1 2 1 2 3 2 3 3 8 1 2 1 3 1 4 1 5 2 5 2 6 6 9 7 10

Sample Input

no
yes 1
no
yes 1
no
yes 2
no
yes 3

Sample Output

 

HINT

Notice:输入第二个整数是序列中权值的范围Lim，即1<=ai(1<=i<=n)<=Lim。

1<=Lim<=10000

Source

当然是主席树辣

2439109	zhangenming	2223	Accepted	177076 kb	960 ms	C++/Edit	1741 B	2017-12-04 19:29:22
2439086	zhangenming	2223	Wrong_Answer	177076 kb	36 ms	C++/Edit	1764 B	2017-12-04 19:20:46
2439080	zhangenming	2223	Wrong_Answer	177076 kb	32 ms	C++/Edit	1764 B	2017-12-04 19:18:20
2439079	zhangenming	2223	Compile_Error	0 kb	0 ms	C++/Edit	1765 B	2017-12-04 19:17:53

我也是醉了，这么简单的题，先CE，再WA

原来是没有删调试代码

#include <bits/stdc++.h>
#define ll long long
using namespace std;
inline int read(){
    int x=0;int f=1;char ch=getchar();
    while(!isdigit(ch)) {if(ch=='-') f=-1;ch=getchar();}
    while(isdigit(ch)) {x=x*10+ch-'0';ch=getchar();}
    return x*f;
}
const int MAXN=1e6+10;
struct node{
    int son[2],sum;
}T[MAXN*5];
int rsum,a[10000010],b[10000010],siz=0,root[10000010],n,m,lim;
namespace zhangenming{
    inline void insert(int l,int r,int x,int &y,int v){
        y=++siz;T[y].sum=T[x].sum+1;
        if(l==r) return;
        T[y].son[0]=T[x].son[0];T[y].son[1]=T[x].son[1];
        int mid=(l+r)>>1;
        if(v<=mid) insert(l,mid,T[x].son[0],T[y].son[0],v);
        else insert(mid+1,r,T[x].son[1],T[y].son[1],v);
    }
    inline int get(int L,int R){
        int l=1;int r=lim;
        int x=root[L-1];int y=root[R];int tmp=(R-L+1)>>1;
        int mid;
        while(l!=r){
            int mid=(l+r)>>1;
            if(T[y].sum-T[x].sum<=tmp) return 0;
            if(T[T[y].son[0]].sum-T[T[x].son[0]].sum>tmp){
                y=T[y].son[0];x=T[x].son[0];r=mid;
            }
            else if(T[T[y].son[1]].sum-T[T[x].son[1]].sum>tmp){
                y=T[y].son[1];x=T[x].son[1];l=mid+1;
            }
            else return 0;
        }
        return l;
    }
    void init(){
        n=read();lim=read();
        for(int i=1;i<=n;i++){
            int xx=read();
            insert(1,lim,root[i-1],root[i],xx);
        }
    }
    void solve(){
        m=read();
        for(int i=1;i<=m;i++){
            int xx=read();int yy=read();
            int k=get(xx,yy);
            if(!k) printf("no
");
            else printf("yes %d
",k);
        }
    }
}
int main(){
    //freopen("All.in","r",stdin);
    //freopen("a.out","w",stdout);
    using namespace zhangenming;
    init();
    solve();
    return 0;
}

 对拍代码

#include <bits/stdc++.h>
#define ll long long
using namespace std;
int main(){
    freopen("All.in","w",stdout);
    srand(time(int(NULL)));
    int n=rand()%10007+1;
    int m=rand()%10007+1+n;
    cout<<n<<' '<<m<<endl;
    for(int i=1;i<=n;i++){
        printf("%d ",rand()%m+1);
    }
    n=m;
    m=rand()%10007;
    cout<<m<<endl;
    for(int i=1;i<=m;i++){
        int k=rand()%n+1;int t=rand()%n+1;
        if(k>t) swap(k,t);
        printf("%d %d
",k,t);
    }
    return 0;
}