Category : runtime-error

================================================================= ==31==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffc21888490 at pc 0x000000346805 bp 0x7ffc21888270 sp 0x7ffc21888268 READ of size 1 at 0x7ffc21888490 thread T0 public: int maxVowels(string s, int k) { set<char> set{‘a’,’e’,’i’,’o’,’u’}; int ans=0,count=0; for(int i=0;i<k;i++) { if(set.find(s[i])!=set.end()) count++; } for(int i=k;i<sizeof(s);i++) { if(set.find(s[i])!=set.end()) count++; if(set.find(s[i-k])!=set.end()) count–; ans=max(ans,count); } ans=count; return ans; } };“` Source: Windows ..

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I am having a struct containing the vector of int and this struct is later used in the class and this is generating a runtime error with the error message, QObject::connect: cannot queue arguments of type ‘QVector’ (Make sure ‘QVector’ is registered using qRegisterMetaType()) struct: struct Grid { std::vector<int> indices; int pt_count{}; Grid()=default; ~Grid()=default; void ..

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class Solution { public: vector<vector<int>> fourSum(vector<int>& nums, int target) { vector<vector<int>> ans; sort(begin(nums),end(nums)); int n = nums.size(); for(int i = 0 ; i < n ; i++){ vector<int> v ; for(int j = i+1 ; j< n ; j++) { int start = j+1 , end = n-1 ; while(start<end){ int t = nums[i]+nums[j]+nums[start]+nums[end]; if(t==target){ ..

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LeetCode Problem : Problem Link Error Message : Line 16: Char 18: runtime error: member access within null pointer of type ‘TreeNode’ (solution.cpp) SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior prog_joined.cpp:25:18 Here is My Code Error is showing in this line : 3rd line of code if(root->left==NULL and root->right==NULL and isleft==true) Can you explain why this error occurs? int ..

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Question :- Write a program to Validate an IPv4 Address. According to Wikipedia, IPv4 addresses are canonically represented in dot-decimal notation, which consists of four decimal numbers, each ranging from 0 to 255, separated by dots, e.g., 172.16.254.1 . The generalized form of an IPv4 address is (0-255).(0-255).(0-255).(0-255). Here we are considering numbers only from ..

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Here is the question: https://leetcode.com/problems/add-two-numbers/ Solution I tried: class Solution { public: ListNode* addTwoNumbers(ListNode* l1, ListNode* l2) { ListNode*temp1,*temp2; int valu1=0,valu2=0; temp1=l1; temp2=l2; while(temp1!=NULL){ valu1+=temp1->val; valu1=valu1*10; temp1=temp1->next; } while(temp2!=NULL){ valu2+=temp2->val; valu2=valu2*10; temp2=temp2->next; } int result=valu1+valu2; int cr=result; ListNode *head=NULL; ListNode *temp; while(cr!=0){ ListNode *newnode=new ListNode(); int v=cr%10; cr=cr/10; newnode->val=v; newnode->next=NULL; head=newnode; temp=head; } else{ temp->next=newnode; ..

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I’ve just asked a very similar question, but I’ve been over the answers to that one and I just can’t see what I’m doing wrong this time around. I’m working on a university project implementing the c++ list<int> using a linked list. I’m working on the assignment operator, and here’s what I have so far. ..

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