hdu6098思维+队列
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Inversion
Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 0 Accepted Submission(s): 0
Problem Description
Give an array A, the index starts from 1.
Now we want to knowBi=maxi∤jAj , i≥2 .
Now we want to know
Input
The first line of the input gives the number of test cases T; T test cases follow.
Each case begins with one line with one integer n : the size of array A.
Next one line contains n integers, separated by space, ith number isAi .
Limits
T≤20
2≤n≤100000
1≤Ai≤1000000000
∑n≤700000
Each case begins with one line with one integer n : the size of array A.
Next one line contains n integers, separated by space, ith number is
Limits
Output
For each test case output one line contains n-1 integers, separated by space, ith number isBi+1 .
Sample Input
241 2 3 441 4 2 3
Sample Output
3 4 32 4 4
思路:
将输入数据排序,然后将2到n放入队列,然后不整除的赋值为最大,会被整除的放入另一个队列,搜索完不整除的队列后,把能整除的放入不整除的队列中。
#include<cstdio>#include<iostream>#include<queue> #include<string.h>#include<algorithm>using namespace std;struct node{int id;int num;}a[100010];bool cmp(node x,node y){return x.num>y.num;}int b[100010];int main(){queue<int> q1,q2;int n;int t;scanf("%d",&t);while(t--){scanf("%d",&n);for(int i=0;i<n;i++){a[i].id=i+1;scanf("%d",&a[i].num);}//for(int i=0;i<n;i++)//cout<<a[i].num<<" ";//cout<<endl;sort(a,a+n,cmp);for(int i=1;i<=n;i++){q1.push(i);}int k=1,j=0;while(j<n&&!q1.empty()){while(!q1.empty()){int id=q1.front();if(a[j].id%id==0){q2.push(id);}else{b[id]=a[j].num;}q1.pop();}while(!q2.empty()){q1.push(q2.front());q2.pop();}j++;}for(int i=2;i<=n;i++){printf("%d",b[i]);if(i!=n)printf(" ");}cout<<endl;}}
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