1133. Splitting A Linked List (25)
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Given a singly linked list, you are supposed to rearrange its elements so that all the negative values appear before all of the non-negatives, and all the values in [0, K] appear before all those greater than K. The order of the elements inside each class must not be changed. For example, given the list being 18→7→-4→0→5→-6→10→11→-2 and K being 10, you must output -4→-6→-2→7→0→5→10→18→11.
Input Specification:
Each input file contains one test case. For each case, the first line contains the address of the first node, a positive N (<= 105) which is the total number of nodes, and a positive K (<=1000). The address of a node is a 5-digit nonnegative integer, and NULL is represented by -1.
Then N lines follow, each describes a node in the format:
Address Data Next
where Address is the position of the node, Data is an integer in [-105, 105], andNext is the position of the next node. It is guaranteed that the list is not empty.
Output Specification:
For each case, output in order (from beginning to the end of the list) the resulting linked list. Each node occupies a line, and is printed in the same format as in the input.
Sample Input:00100 9 1023333 10 2777700000 0 9999900100 18 1230968237 -6 2333333218 -4 0000048652 -2 -199999 5 6823727777 11 4865212309 7 33218Sample Output:
33218 -4 6823768237 -6 4865248652 -2 1230912309 7 0000000000 0 9999999999 5 2333323333 10 0010000100 18 2777727777 11 -1
#include <iostream>#include <vector>#include <cstdio>#include <algorithm>using namespace std;struct xnode{ int add,val,next;};xnode node[100000];vector<xnode> p,q,r,ans;int head,n,k;int main(){ cin>>head>>n>>k; for(int i=0;i<n;++i) { int add,val,next; cin>>add>>val>>next; node[add].add=add; node[add].val=val; node[add].next=next; } int x=head; while(x!=-1) { if(node[x].val<0) p.push_back(node[x]); else if(node[x].val>=0&&node[x].val<=k) q.push_back(node[x]); else r.push_back(node[x]); x=node[x].next; } ans=p; for(auto ln:q) ans.push_back(ln); for(auto ln:r) ans.push_back(ln); int al=ans.size(); for(int i=0;i<al-1;++i) printf("%05d %d %05d\n",ans[i].add,ans[i].val,ans[i+1].add); printf("%05d %d -1\n",ans[al-1].add,ans[al-1].val); return 0;}
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