2018.11.6 PION 模拟赛

期望：100 + 40 + 50 = 190

实际：60 + 10 + 50 = 120

考得好炸啊！！T1数组开小了炸掉40，T2用 int 读入 long long ,int存储 long long 炸掉 20

T3可以吧for维护最大值变成o(1)，但是木想到啊，只想写暴力了。。。w(ﾟДﾟ)w

最近考试低级错误一个接一个啊！！noip肿么玩啊。。简直没法好好玩耍了。

感觉要凉~~~~(>_<)~~~~

wfj竟然敢奶我：看我奶死她：：

　　　　wfj AK NOIP     wfj AK 省选（省队姐）   wfj AK NOI     wfj AK IOI 

原来以为我的数组没开小，是AC了的，因为特别注意了数组，但是。。。没想到树状数组的数组开小了。

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
long long ans;
int n,k,tot,numt;
int num[200010],F[100010];
int val[100010],f[100010],g[100010];
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*10+ch-'0';ch=getchar();}
    return x*f;
}
int fastpow(long long a,long long b){
    long long s=1;
    for(;b;b>>=1){
        if(b&1)    s=s*a%k;
        a=a*a%k;
    }
    return s;
}
int lowbit(int x){
    return x&(-x);
}
void change(int x){
    for(int i=x;i<=numt;i+=lowbit(i))
        F[i]+=1;
}
int query(int x){
    int bns=0;
    for(int i=x;i;i-=lowbit(i))
        bns+=F[i];
    return bns;
}
int ff(int now){
    return fastpow(now,val[now]);
}
int gg(int now){
    return fastpow(val[now],now);
}
int main(){
    //freopen("lpp.in","r",stdin);
    freopen("calc.in","r",stdin);
    freopen("calc.out","w",stdout);
    n=read();k=read();
    for(int i=1;i<=n;i++){
        val[i]=read();
        f[i]=ff(i);g[i]=gg(i);
        num[++tot]=f[i];
        num[++tot]=g[i];
    }
    sort(num+1,num+1+tot);
    numt=unique(num+1,num+1+tot)-num-1;
    for(int i=1;i<=n;i++){
        f[i]=lower_bound(num+1,num+1+numt,f[i])-num;
        g[i]=lower_bound(num+1,num+1+numt,g[i])-num;
    }
    for(int i=1;i<=n;i++){
        ans+=query(numt)-query(g[i]);
        change(f[i]);
    }
    cout<<ans;
}

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
long long ans;
int n,k,tot,numt;
int num[200010],F[200010];
int val[100010],f[100010],g[100010];
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*10+ch-'0';ch=getchar();}
    return x*f;
}
int fastpow(long long a,long long b){
    long long s=1;
    for(;b;b>>=1){
        if(b&1)    s=s*a%k;
        a=a*a%k;
    }
    return s;
}
int lowbit(int x){
    return x&(-x);
}
void change(int x){
    for(int i=x;i<=numt;i+=lowbit(i))
        F[i]+=1;
}
int query(int x){
    int bns=0;
    for(int i=x;i;i-=lowbit(i))
        bns+=F[i];
    return bns;
}
int ff(int now){
    return fastpow(now,val[now]);
}
int gg(int now){
    return fastpow(val[now],now);
}
int main(){
    //freopen("lpp.in","r",stdin);
    freopen("calc.in","r",stdin);
    freopen("calc.out","w",stdout);
    n=read();k=read();
    for(int i=1;i<=n;i++){
        val[i]=read();
        f[i]=ff(i);g[i]=gg(i);
        num[++tot]=f[i];
        num[++tot]=g[i];
    }
    sort(num+1,num+1+tot);
    numt=unique(num+1,num+1+tot)-num-1;
    for(int i=1;i<=n;i++){
        f[i]=lower_bound(num+1,num+1+numt,f[i])-num;
        g[i]=lower_bound(num+1,num+1+numt,g[i])-num;
    }
    for(int i=1;i<=n;i++){
        ans+=query(numt)-query(g[i]);
        change(f[i]);
    }
    cout<<ans;
}

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
int a[500010];
int n,r,enan;
long long k;
int fv[500010];
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*10+ch-'0';ch=getchar();}
    return x*f;
}
long long readll(){
    long long 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*10+ch-'0';ch=getchar();}
    return x*f;
}
int work(){
    int bns=0x7f7f7f7f;
    for(int i=1;i<=n;i++)
        bns=min(bns,fv[i]);
    return bns;
}
void change(int x){
    for(int i=max(1,x-r);i<=min(n,x+r);i++)
        fv[i]+=1; 
}
void nochange(int x){
    for(int i=max(1,x-r);i<=min(n,x+r);i++)
        fv[i]-=1; 
}
void dfs(int now){
    if(now==k+1){
        enan=min(enan,work());
        return ;
    }
    int minn=0x7f7f7f7f;
    for(int i=1;i<=n;i++)
        if(fv[i]<minn)    minn=fv[i];
    for(int i=1;i<=n;i++)
        if(fv[i]==minn)
            for(int j=max(1,i-r);j<=min(n,i+r);j++){
                change(j);
                dfs(now+1);
                nochange(j);
            }
}
int main(){
    freopen("Game.in","r",stdin);
    freopen("Game.out","w",stdout);
    n=read();r=read();k=readll();
    for(int i=1;i<=n;i++)    a[i]=read();
    if(r==0){
        sort(a+1,a+1+n);
        long long sum=0;
        for(int i=1;i<=n;i++)
            sum+=a[n]-a[i];
        if(k>=sum){
            k-=sum;k/=n;
            long long ans=1ll*k+1ll*a[n];
            printf("%I64d",ans);
            return 0;
        }
        else{
            for(int i=n;i>=1;i--){
                sum=0;
                for(int j=1;j<=i;j++)
                    sum+=a[i]-a[j];
                if(sum>k)    continue;
                else if(sum==k){
                    printf("%d",a[i]);
                    return 0;
                }
                else{
                    k-=sum;k/=i;
                    long long ans=1ll*a[i]+1ll*k;
                    printf("%I64d",ans);
                    return 0;
                }
            }
        }
    }
    else if(n<=10){
        enan=0x7f7f7f7f;
        for(int i=1;i<=n;i++)
            for(int j=max(1,i-r);j<=min(n,i+r);j++)
                fv[j]+=a[i];
        dfs(1);
        printf("%d",enan);
        return 0;
    }
    else{
        sort(a+1,a+1+n);
        long long sum=0;
        for(int i=1;i<=n;i++)
            sum+=a[n]-a[i];
        if(k>=sum){
            k-=sum;k/=n;
            printf("%d",k+a[n]);
            return 0;
        }
    }
}
/*
5 0 6
5 4 3 4 9
*/

#include<cstdio>
#include<cstring>
#include<cstdlib>
#include<iostream>
using namespace std;
long long n,R,k;
long long l,r,mid,ans;
long long a[500010],b[500010],cf[500010],sum[500010];
long long read(){
    long long x=0;int f=1;char ch=getchar();
    while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
    while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}
    return x*f;
}
long long query(long long ll,long long rr){
    rr=min(rr,n);
    if(ll<0)    return sum[rr];    
    else return sum[rr]-sum[ll];
}
bool judge(){
    memset(cf,0,sizeof(cf));
    long long sumcf=0,res=k;
    for(long long i=1;i<=n;i++)    a[i]=b[i];
    for(long long i=1;i<=n;i++){
        sumcf+=cf[i];
        a[i]+=sumcf;
        if(a[i]<mid){
            sumcf+=mid-a[i];
            cf[i+2*R+1]-=mid-a[i];
            res-=mid-a[i];
        }
        if(res<0)    return false;
    }
    return true;
}
int main(){
    n=read();R=read();k=read();
    for(int i=1;i<=n;i++){
        a[i]=read();
        sum[i]=sum[i-1]+a[i];
    }
    for(int i=1;i<=n;i++)    a[i]=query(i-R-1,i+R);
    for(int i=1;i<=n;i++)    b[i]=a[i];
    l=0;r=3e18;
    while(l<=r){
        mid=(l+r)/2;
        if(judge()){
            l=mid+1;
            ans=mid;
        }
        else r=mid-1;
    }
    cout<<ans;
}

唉~就差那么两行。果然思想要上去，还是要有AC的志向的，不能只写暴力。QwQ

/*
期望：50 
*/
#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
int n,m,k;
int fa[100010],val[100010];
struct nond{ int u,v,w; }edge[100010];
struct none{ int id,xmax,ans; }ques[100010];
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*10+ch-'0';ch=getchar();}
    return x*f;
}
int cmp(nond a,nond b){ return a.w<b.w; }
int cmp2(none a,none b){ return a.id<b.id; }
int cmp1(none a,none b){ return a.xmax<b.xmax; }
int find(int x){
    if(fa[x]==x)    return x;
    return fa[x]=find(fa[x]);
}
int main(){
    //freopen("lpp.in","r",stdin); 
    freopen("Graph.in","r",stdin);
    freopen("Graph.out","w",stdout);
    n=read();m=read();k=read();
    for(int i=1;i<=m;i++){
        edge[i].u=read();
        edge[i].v=read();
        edge[i].w=read();
    }
    sort(edge+1,edge+1+m,cmp);
    for(int i=1;i<=k;i++){
        ques[i].xmax=read();
        ques[i].id=i;
    }
    sort(ques+1,ques+1+k,cmp1);
    int quepos=1;
    for(int i=1;i<=n;i++)    fa[i]=i;
    for(int i=1;i<=m;i++){
        if(quepos>k)    break;
        int dx=find(edge[i].u);
        int dy=find(edge[i].v);
        if(edge[i].w>ques[quepos].xmax){
            int maxn=-0x7f7f7f7f;
            for(int j=1;j<=n;j++)
                if(find(j)==j)
                    maxn=max(maxn,val[fa[j]]);
            while(quepos<=k&&edge[i].w>ques[quepos].xmax){
                ques[quepos].ans=maxn;
                quepos++;
            }
        }
        if(dx==dy){
            val[dx]+=edge[i].w;
            continue;
        }
        fa[dy]=dx;
        val[dx]+=val[dy]+edge[i].w;
        val[dy]=0;
    }
    int maxn=-0x7f7f7f7f;
    for(int i=1;i<=n;i++)
        if(find(i)==i)
            maxn=max(maxn,val[fa[i]]);
    while(quepos<=k){
        ques[quepos].ans=maxn;
        quepos++;
    }
    sort(ques+1,ques+1+k,cmp2);
    for(int i=1;i<=k;i++)
        printf("%d
",ques[i].ans);
}

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
int n,m,k,ans=0;
int fa[100010],val[100010];
struct nond{ int u,v,w; }edge[100010];
struct none{ int id,xmax,ans; }ques[100010];
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*10+ch-'0';ch=getchar();}
    return x*f;
}
int cmp(nond a,nond b){ return a.w<b.w; }
int cmp2(none a,none b){ return a.id<b.id; }
int cmp1(none a,none b){ return a.xmax<b.xmax; }
int find(int x){
    if(fa[x]==x)    return x;
    return fa[x]=find(fa[x]);
}
int main(){
    //freopen("lpp.in","r",stdin); 
    //freopen("Graph.in","r",stdin);
    //freopen("Graph.out","w",stdout);
    n=read();m=read();k=read();
    for(int i=1;i<=m;i++){
        edge[i].u=read();
        edge[i].v=read();
        edge[i].w=read();
    }
    sort(edge+1,edge+1+m,cmp);
    for(int i=1;i<=k;i++){
        ques[i].xmax=read();
        ques[i].id=i;
    }
    sort(ques+1,ques+1+k,cmp1);
    int quepos=1;
    for(int i=1;i<=n;i++)    fa[i]=i;
    for(int i=1;i<=m;i++){
        if(quepos>k)    break;
        int dx=find(edge[i].u);
        int dy=find(edge[i].v);
        if(edge[i].w>ques[quepos].xmax)
            while(quepos<=k&&edge[i].w>ques[quepos].xmax){
                ques[quepos].ans=ans;
                quepos++;
            }
        if(dx==dy){
            val[dx]+=edge[i].w;
            if(val[dx]>ans)    ans=val[dx];
            continue;
        }
        fa[dy]=dx;
        val[dx]+=val[dy]+edge[i].w;
        val[dy]=0;
        if(val[dx]>ans)    ans=val[dx];
    }
    while(quepos<=k){
        ques[quepos].ans=ans;
        quepos++;
    }
    sort(ques+1,ques+1+k,cmp2);
    for(int i=1;i<=k;i++)
        printf("%d
",ques[i].ans);
}