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Computer File Input Output Difficulty: Medium

Which of the following is a 3-dimensional dataset? What is the optimal time required for solving the closest pair problem using divide and conquer approach? Which symbol is used for the modulo operation in Ruby? How is the output from PHP generated? What is the output of the following code? #include<stdio.h> #include<stdlib.h> struct Node { int val; struct Node* next; }*head; int linear_search(int value) { struct Node *temp = head->next; while(temp -> next != 0) { if(temp->val == value) return 1; temp = temp->next; } return 0; } int main() { int arr[6] = {1,2,3,4,5,6}; int n = 6,i; head = (struct Node*)malloc(sizeof(struct Node)); head->next = 0; struct Node *temp; temp = head; for(i=0; i<n; i++) { struct Node *newNode = (struct Node*)malloc(sizeof(struct Node)); newNode->next = 0; newNode->val = arr[i]; temp->next = newNode; temp = temp->next; } int ans = linear_search(60); if(ans == 1) printf("Found"); else printf("Not found"); return 0; }