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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
#509404	#3797. Wireless Communication Network	Monkey_Lee	AC ✓	2091ms	128152kb	C++20	2.2kb	2024-08-08 14:14:50	2024-08-08 14:14:51

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你现在查看的是最新测评结果

[2024-08-08 14:14:51]
评测

测评结果：AC
用时：2091ms
内存：128152kb

查看

[2024-08-08 14:14:50]
提交

answer

#include<bits/stdc++.h>
using namespace std;
const int maxn=2100000;
int n,h[maxn],mx[maxn][22],lg[maxn],id[maxn],f[maxn],g[maxn];
int Mx[maxn<<3];
void add(int p,int l,int r,int x,int v)
{
    if(l==r)
        return Mx[p]=max(Mx[p],v),void();
    int mid=(l+r)/2;
    if(x<=mid)
        add(p+p,l,mid,x,v);
    else
        add(p+p+1,mid+1,r,x,v);
    Mx[p]=max(Mx[p+p],Mx[p+p+1]);
}
int ask(int p,int l,int r,int x,int y)
{
    if(l>=x&&r<=y)
        return Mx[p];
    int ans=0,mid=(l+r)/2;
    if(x<=mid)
        ans=max(ans,ask(p+p,l,mid,x,y));
    if(y>mid)
        ans=max(ans,ask(p+p+1,mid+1,r,x,y));
    return ans;
}
bool cmp(int x,int y){return h[x]<h[y];}
int Max(int l,int r)
{
    int k=lg[r-l+1];
    return max(mx[l][k],mx[r-(1<<k)+1][k]);
}
int main()
{
    scanf("%d",&n);
    for(int i=1;i<=n;i++)
        scanf("%d",&h[i]),mx[i][0]=h[i],id[i]=i;
    sort(id+1,id+n+1,cmp);
    for(int j=1;j<=19;j++)
        for(int i=1;i+(1<<j)-1<=n;i++)
            mx[i][j]=max(mx[i][j-1],mx[i+(1<<j-1)][j-1]);
    for(int i=2;i<=n;i++)
        lg[i]=lg[i>>1]+1;
    int ans=0;
    for(int i=n;i>=1;i--)
    {
        int x=id[i],L,R;
        int l=1,r=x,mid;
        while(l<r)
        {
            mid=(l+r)/2;
            if(Max(mid,x)==h[x])
                r=mid;
            else
                l=mid+1;
        }
        L=l;
        l=x,r=n;
        while(l<r)
        {
            mid=(l+r+1)/2;
            if(Max(x,mid)==h[x])
                l=mid;
            else
                r=mid-1;
        }
        R=l;
        f[x]=f[L-1]+1,g[x]=g[R+1]+1;
    }
    for(int i=1;i<=n;i++)
    {
        int x=id[i],L,R;
        int l=1,r=x,mid;
        while(l<r)
        {
            mid=(l+r)/2;
            if(Max(mid,x)==h[x])
                r=mid;
            else
                l=mid+1;
        }
        L=l;
        l=x,r=n;
        while(l<r)
        {
            mid=(l+r+1)/2;
            if(Max(x,mid)==h[x])
                l=mid;
            else
                r=mid-1;
        }
        R=l;
        int fl=ask(1,1,n,L,x),fr=ask(1,1,n,x,R);
        ans=max(ans,fl+fr+f[x]+g[x]-2);
        add(1,1,n,x,max(fl,fr)+1);
    }
    printf("%d\n",ans);

    return 0;
}

源文件, 语言: C++20

詳細信息

Test #1:

score: 100

Accepted

time: 2091ms

memory: 128152kb

input:

output:

result:

ok single line: '91'

Test #2:

score: 0

Accepted

time: 1775ms

memory: 116920kb

input:

output:

result:

ok single line: '95'

Test #3:

score: 0

Accepted

time: 2076ms

memory: 128000kb

input:

output:

result:

ok single line: '94'

Test #4:

score: 0

Accepted

time: 2032ms

memory: 127112kb

input:

output:

result:

ok single line: '94'

Test #5:

score: 0

Accepted

time: 2045ms

memory: 128148kb

input:

output:

result:

ok single line: '99'

Test #6:

score: 0

Accepted

time: 2056ms

memory: 127332kb

input:

output:

result:

ok single line: '92'

Test #7:

score: 0

Accepted

time: 2081ms

memory: 120268kb

input:

output:

result:

ok single line: '92'

Test #8:

score: 0

Accepted

time: 751ms

memory: 127616kb

input:

output:

result:

ok single line: '999996'

Test #9:

score: 0

Accepted

time: 771ms

memory: 127908kb

input:

output:

result:

ok single line: '999997'

Test #10:

score: 0

Accepted

time: 0ms

memory: 9952kb

input:

output:

result:

ok single line: '2'

Test #11:

score: 0

Accepted

time: 1ms

memory: 9996kb

input:

output:

result:

ok single line: '2'

Test #12:

score: 0

Accepted

time: 1ms

memory: 10000kb

input:

output:

result:

ok single line: '2'

Test #13:

score: 0

Accepted

time: 1ms

memory: 10016kb

input:

output:

result:

ok single line: '2'

Test #14:

score: 0

Accepted

time: 1ms

memory: 10032kb

input:

output:

result:

ok single line: '2'

Test #15:

score: 0

Accepted

time: 1ms

memory: 9960kb

input:

output:

result:

ok single line: '2'

Test #16:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '3'

Test #17:

score: 0

Accepted

time: 0ms

memory: 10104kb

input:

output:

result:

ok single line: '3'

Test #18:

score: 0

Accepted

time: 0ms

memory: 10004kb

input:

output:

result:

ok single line: '3'

Test #19:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '3'

Test #20:

score: 0

Accepted

time: 1ms

memory: 10024kb

input:

output:

result:

ok single line: '3'

Test #21:

score: 0

Accepted

time: 1ms

memory: 10000kb

input:

output:

result:

ok single line: '3'

Test #22:

score: 0

Accepted

time: 1ms

memory: 10048kb

input:

output:

result:

ok single line: '3'

Test #23:

score: 0

Accepted

time: 0ms

memory: 10076kb

input:

output:

result:

ok single line: '3'

Test #24:

score: 0

Accepted

time: 1ms

memory: 9908kb

input:

output:

result:

ok single line: '3'

Test #25:

score: 0

Accepted

time: 1ms

memory: 9912kb

input:

output:

result:

ok single line: '3'

Test #26:

score: 0

Accepted

time: 1ms

memory: 9964kb

input:

output:

result:

ok single line: '3'

Test #27:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '3'

Test #28:

score: 0

Accepted

time: 1ms

memory: 10112kb

input:

output:

result:

ok single line: '3'

Test #29:

score: 0

Accepted

time: 1ms

memory: 9948kb

input:

output:

result:

ok single line: '3'

Test #30:

score: 0

Accepted

time: 1ms

memory: 9964kb

input:

output:

result:

ok single line: '3'

Test #31:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '3'

Test #32:

score: 0

Accepted

time: 1ms

memory: 9948kb

input:

output:

result:

ok single line: '3'

Test #33:

score: 0

Accepted

time: 1ms

memory: 10000kb

input:

output:

result:

ok single line: '3'

Test #34:

score: 0

Accepted

time: 1ms

memory: 10048kb

input:

output:

result:

ok single line: '3'

Test #35:

score: 0

Accepted

time: 0ms

memory: 10016kb

input:

output:

result:

ok single line: '3'

Test #36:

score: 0

Accepted

time: 0ms

memory: 10108kb

input:

output:

result:

ok single line: '3'

Test #37:

score: 0

Accepted

time: 0ms

memory: 9984kb

input:

output:

result:

ok single line: '3'

Test #38:

score: 0

Accepted

time: 0ms

memory: 9916kb

input:

output:

result:

ok single line: '3'

Test #39:

score: 0

Accepted

time: 0ms

memory: 9896kb

input:

output:

result:

ok single line: '3'

Test #40:

score: 0

Accepted

time: 1ms

memory: 10000kb

input:

output:

result:

ok single line: '4'

Test #41:

score: 0

Accepted

time: 0ms

memory: 9912kb

input:

output:

result:

ok single line: '4'

Test #42:

score: 0

Accepted

time: 1ms

memory: 9912kb

input:

output:

result:

ok single line: '4'

Test #43:

score: 0

Accepted

time: 1ms

memory: 10112kb

input:

output:

result:

ok single line: '4'

Test #44:

score: 0

Accepted

time: 1ms

memory: 9912kb

input:

output:

result:

ok single line: '4'

Test #45:

score: 0

Accepted

time: 1ms

memory: 9956kb

input:

output:

result:

ok single line: '4'

Test #46:

score: 0

Accepted

time: 1ms

memory: 10000kb

input:

output:

result:

ok single line: '4'

Test #47:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '3'

Test #48:

score: 0

Accepted

time: 1ms

memory: 10016kb

input:

output:

result:

ok single line: '4'

Test #49:

score: 0

Accepted

time: 0ms

memory: 9956kb

input:

output:

result:

ok single line: '4'

Test #50:

score: 0

Accepted

time: 0ms

memory: 9960kb

input:

output:

result:

ok single line: '4'

Test #51:

score: 0

Accepted

time: 1ms

memory: 10016kb

input:

output:

result:

ok single line: '4'

Test #52:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '4'

Test #53:

score: 0

Accepted

time: 1ms

memory: 10016kb

input:

output:

result:

ok single line: '3'

Test #54:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '4'

Test #55:

score: 0

Accepted

time: 0ms

memory: 9960kb

input:

output:

result:

ok single line: '3'

Test #56:

score: 0

Accepted

time: 1ms

memory: 10024kb

input:

output:

result:

ok single line: '4'

Test #57:

score: 0

Accepted

time: 1ms

memory: 9920kb

input:

output:

result:

ok single line: '4'

Test #58:

score: 0

Accepted

time: 1ms

memory: 9908kb

input:

output:

result:

ok single line: '4'

Test #59:

score: 0

Accepted

time: 1ms

memory: 10048kb

input:

output:

result:

ok single line: '3'

Test #60:

score: 0

Accepted

time: 0ms

memory: 10108kb

input:

output:

result:

ok single line: '4'

Test #61:

score: 0

Accepted

time: 0ms

memory: 9964kb

input:

output:

result:

ok single line: '3'

Test #62:

score: 0

Accepted

time: 0ms

memory: 10048kb

input:

output:

result:

ok single line: '4'

Test #63:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '4'

Test #64:

score: 0

Accepted

time: 1ms

memory: 10032kb

input:

output:

result:

ok single line: '4'

Test #65:

score: 0

Accepted

time: 1ms

memory: 10032kb

input:

output:

result:

ok single line: '4'

Test #66:

score: 0

Accepted

time: 1ms

memory: 10000kb

input:

output:

result:

ok single line: '4'

Test #67:

score: 0

Accepted

time: 1ms

memory: 9948kb

input:

output:

result:

ok single line: '4'

Test #68:

score: 0

Accepted

time: 1ms

memory: 10024kb

input:

output:

result:

ok single line: '4'

Test #69:

score: 0

Accepted

time: 1ms

memory: 10016kb

input:

output:

result:

ok single line: '4'

Test #70:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '4'

Test #71:

score: 0

Accepted

time: 1ms

memory: 9912kb

input:

output:

result:

ok single line: '3'

Test #72:

score: 0

Accepted

time: 1ms

memory: 10016kb

input:

output:

result:

ok single line: '4'

Test #73:

score: 0

Accepted

time: 1ms

memory: 10032kb

input:

output:

result:

ok single line: '4'

Test #74:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '4'

Test #75:

score: 0

Accepted

time: 1ms

memory: 9960kb

input:

output:

result:

ok single line: '4'

Test #76:

score: 0

Accepted

time: 1ms

memory: 9892kb

input:

output:

result:

ok single line: '4'

Test #77:

score: 0

Accepted

time: 1ms

memory: 10000kb

input:

output:

result:

ok single line: '3'

Test #78:

score: 0

Accepted

time: 1ms

memory: 9996kb

input:

output:

result:

ok single line: '4'

Test #79:

score: 0

Accepted

time: 1ms

memory: 10016kb

input:

output:

result:

ok single line: '3'

Test #80:

score: 0

Accepted

time: 1ms

memory: 9948kb

input:

output:

result:

ok single line: '4'

Test #81:

score: 0

Accepted

time: 1ms

memory: 10104kb

input:

output:

result:

ok single line: '4'

Test #82:

score: 0

Accepted

time: 1ms

memory: 10104kb

input:

output:

result:

ok single line: '4'

Test #83:

score: 0

Accepted

time: 1ms

memory: 9960kb

input:

output:

result:

ok single line: '3'

Test #84:

score: 0

Accepted

time: 1ms

memory: 9920kb

input:

output:

result:

ok single line: '4'

Test #85:

score: 0

Accepted

time: 1ms

memory: 9960kb

input:

output:

result:

ok single line: '3'

Test #86:

score: 0

Accepted

time: 1ms

memory: 9960kb

input:

output:

result:

ok single line: '4'

Test #87:

score: 0

Accepted

time: 1ms

memory: 10012kb

input:

output:

result:

ok single line: '4'

Test #88:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '4'

Test #89:

score: 0

Accepted

time: 1ms

memory: 10036kb

input:

output:

result:

ok single line: '4'

Test #90:

score: 0

Accepted

time: 1ms

memory: 9952kb

input:

output:

result:

ok single line: '4'

Test #91:

score: 0

Accepted

time: 1ms

memory: 9912kb

input:

output:

result:

ok single line: '4'

Test #92:

score: 0

Accepted

time: 1ms

memory: 9920kb

input:

output:

result:

ok single line: '4'

Test #93:

score: 0

Accepted

time: 1ms

memory: 10008kb

input:

output:

result:

ok single line: '4'

Test #94:

score: 0

Accepted

time: 1ms

memory: 10024kb

input:

output:

result:

ok single line: '4'

Test #95:

score: 0

Accepted

time: 1ms

memory: 9960kb

input:

output:

result:

ok single line: '4'

Test #96:

score: 0

Accepted

time: 1ms

memory: 10112kb

input:

output:

result:

ok single line: '4'

Test #97:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '4'

Test #98:

score: 0

Accepted

time: 1ms

memory: 10044kb

input:

output:

result:

ok single line: '4'

Test #99:

score: 0

Accepted

time: 1ms

memory: 10104kb

input:

output:

result:

ok single line: '4'

Test #100:

score: 0

Accepted

time: 0ms

memory: 9952kb

input:

output:

result:

ok single line: '4'

Test #101:

score: 0

Accepted

time: 1ms

memory: 9960kb

input:

output:

result:

ok single line: '3'

Test #102:

score: 0

Accepted

time: 1ms

memory: 9956kb

input:

output:

result:

ok single line: '4'

Test #103:

score: 0

Accepted

time: 1ms

memory: 10024kb

input:

output:

result:

ok single line: '3'

Test #104:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '4'

Test #105:

score: 0

Accepted

time: 1ms

memory: 9952kb

input:

output:

result:

ok single line: '4'

Test #106:

score: 0

Accepted

time: 1ms

memory: 10048kb

input:

output:

result:

ok single line: '4'

Test #107:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '3'

Test #108:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '4'

Test #109:

score: 0

Accepted

time: 1ms

memory: 9956kb

input:

output:

result:

ok single line: '3'

Test #110:

score: 0

Accepted

time: 0ms

memory: 10048kb

input:

output:

result:

ok single line: '4'

Test #111:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '4'

Test #112:

score: 0

Accepted

time: 0ms

memory: 9908kb

input:

output:

result:

ok single line: '4'

Test #113:

score: 0

Accepted

time: 0ms

memory: 9948kb

input:

output:

result:

ok single line: '4'

Test #114:

score: 0

Accepted

time: 1ms

memory: 10048kb

input:

output:

result:

ok single line: '4'

Test #115:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '4'

Test #116:

score: 0

Accepted

time: 1ms

memory: 10016kb

input:

output:

result:

ok single line: '4'

Test #117:

score: 0

Accepted

time: 1ms

memory: 9956kb

input:

output:

result:

ok single line: '4'

Test #118:

score: 0

Accepted

time: 1ms

memory: 10012kb

input:

output:

result:

ok single line: '4'

Test #119:

score: 0

Accepted

time: 0ms

memory: 9952kb

input:

output:

result:

ok single line: '4'

Test #120:

score: 0

Accepted

time: 1ms

memory: 9888kb

input:

output:

result:

ok single line: '4'

Test #121:

score: 0

Accepted

time: 1ms

memory: 10052kb

input:

output:

result:

ok single line: '4'

Test #122:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '4'

Test #123:

score: 0

Accepted

time: 0ms

memory: 10112kb

input:

output:

result:

ok single line: '4'

Test #124:

score: 0

Accepted

time: 0ms

memory: 10104kb

input:

output:

result:

ok single line: '4'

Test #125:

score: 0

Accepted

time: 1ms

memory: 10004kb

input:

output:

result:

ok single line: '4'

Test #126:

score: 0

Accepted

time: 0ms

memory: 10016kb

input:

output:

result:

ok single line: '4'

Test #127:

score: 0

Accepted

time: 1ms

memory: 9956kb

input:

output:

result:

ok single line: '4'

Test #128:

score: 0

Accepted

time: 1ms

memory: 10000kb

input:

output:

result:

ok single line: '4'

Test #129:

score: 0

Accepted

time: 1ms

memory: 10044kb

input:

output:

result:

ok single line: '4'

Test #130:

score: 0

Accepted

time: 1ms

memory: 10016kb

input:

output:

result:

ok single line: '4'

Test #131:

score: 0

Accepted

time: 1ms

memory: 9956kb

input:

output:

result:

ok single line: '3'

Test #132:

score: 0

Accepted

time: 1ms

memory: 9912kb

input:

output:

result:

ok single line: '4'

Test #133:

score: 0

Accepted

time: 1ms

memory: 9960kb

input:

output:

result:

ok single line: '3'

Test #134:

score: 0

Accepted

time: 0ms

memory: 9912kb

input:

output:

result:

ok single line: '4'

Test #135:

score: 0

Accepted

time: 0ms

memory: 9916kb

input:

output:

result:

ok single line: '4'

Test #136:

score: 0

Accepted

time: 0ms

memory: 10112kb

input:

output:

result:

ok single line: '4'

Test #137:

score: 0

Accepted

time: 1ms

memory: 10024kb

input:

output:

result:

ok single line: '4'

Test #138:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '4'

Test #139:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '4'

Test #140:

score: 0

Accepted

time: 0ms

memory: 10016kb

input:

output:

result:

ok single line: '4'

Test #141:

score: 0

Accepted

time: 0ms

memory: 10016kb

input:

output:

result:

ok single line: '4'

Test #142:

score: 0

Accepted

time: 1ms

memory: 10112kb

input:

output:

result:

ok single line: '4'

Test #143:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '4'

Test #144:

score: 0

Accepted

time: 0ms

memory: 10020kb

input:

output:

result:

ok single line: '4'

Test #145:

score: 0

Accepted

time: 0ms

memory: 10028kb

input:

output:

result:

ok single line: '4'

Test #146:

score: 0

Accepted

time: 1ms

memory: 9916kb

input:

output:

result:

ok single line: '4'

Test #147:

score: 0

Accepted

time: 1ms

memory: 10020kb

input:

output:

result:

ok single line: '4'

Test #148:

score: 0

Accepted

time: 0ms

memory: 10000kb

input:

output:

result:

ok single line: '4'

Test #149:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '4'

Test #150:

score: 0

Accepted

time: 1ms

memory: 10044kb

input:

output:

result:

ok single line: '4'

Test #151:

score: 0

Accepted

time: 0ms

memory: 10024kb

input:

output:

result:

ok single line: '4'

Test #152:

score: 0

Accepted

time: 0ms

memory: 9952kb

input:

output:

result:

ok single line: '4'

Test #153:

score: 0

Accepted

time: 0ms

memory: 9964kb

input:

output:

result:

ok single line: '4'

Test #154:

score: 0

Accepted

time: 1ms

memory: 10108kb

input:

output:

result:

ok single line: '4'

Test #155:

score: 0

Accepted

time: 1ms

memory: 10012kb

input:

output:

result:

ok single line: '4'

Test #156:

score: 0

Accepted

time: 1ms

memory: 10028kb

input:

output:

result:

ok single line: '4'

Test #157:

score: 0

Accepted

time: 1ms

memory: 9908kb

input:

output:

result:

ok single line: '4'

Test #158:

score: 0

Accepted

time: 1ms

memory: 10104kb

input:

output:

result:

ok single line: '4'

Test #159:

score: 0

Accepted

time: 0ms

memory: 10112kb

input:

output:

result:

ok single line: '4'

Test #160:

score: 0

Accepted

time: 2031ms

memory: 128100kb

input:

output:

result:

ok single line: '95'

Test #161:

score: 0

Accepted

time: 2011ms

memory: 124660kb

input:

output:

result:

ok single line: '89'

Test #162:

score: 0

Accepted

time: 2044ms

memory: 127844kb

input:

output:

result:

ok single line: '92'

Test #163:

score: 0

Accepted

time: 2044ms

memory: 127940kb

input:

output:

result:

ok single line: '90'