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1171.cpp
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37 lines (37 loc) · 944 Bytes
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/**
* Definition for singly-linked list.
* struct ListNode {
* int val;
* ListNode *next;
* ListNode() : val(0), next(nullptr) {}
* ListNode(int x) : val(x), next(nullptr) {}
* ListNode(int x, ListNode *next) : val(x), next(next) {}
* };
*/
class Solution {
public:
ListNode* removeZeroSumSublists(ListNode* head) {
ListNode *temp,*curr=head;
int sum=0,cnt;
while(curr){
sum+=curr->val;
if(sum==0){
curr=curr->next;
head=curr;
continue;
}
temp=head;
cnt=0;
while(temp && temp!=curr){
if(temp) cnt+=temp->val;
if(cnt==sum){
temp->next=curr->next;
break;
}
if(temp) temp=temp->next;
}
curr=curr->next;
}
return head;
}
};