Given an arrayxof sizen > 3and an integerN, return the indices of three elements in the array that sum up to the given integerN. If there is no such triplet, return -1. For example, givenx = [1 4 2 5 8 10]andN = 17, the function should return[2 4 5]becausex(2) + x(...
// [[Rcpp::export(rng = false)]] Eigen::SparseMatrix<double> ComputeSNN(Eigen::MatrixXd nn_ranked, double prune) { std::vector<T> tripletList; //声明一个向量 int k = nn_ranked.cols(); //总列数 tripletList.reserve(nn_ranked.rows() * nn_ranked.cols()); //定义行列,初始化全0...
Suppose, we are given n numbers in array nums. We have to choose a pair of two numbers from the array, and there is a condition that the difference of their positions in the array is equal to the sum of the two numbers. There can be a total of n(n - 1)/2 number...
Write a Java program to find the number of pairs in an array whose sum is equal to a given value. Write a Java program to find a triplet in a given array that adds up to a given value. Write a Java program to find the number of quadruples in an array that sum to a given value...
0028-find-the-index-of-the-first-occurrence-in-a-string.py 0033-search-in-rotated-sorted-array.py 0034-find-first-and-last-position-of-element-in-sorted-array.py 0035-search-insert-position.py 0036-valid-sudoku.py 0039-combination-sum.py 0040-combination-sum-ii.py ...
Write a C program to find the first missing positive integer in an unsorted array using constant space. Write a C program to rearrange an array so that each index contains its corresponding positive integer, then find the missing one. Write a C program to identify the smallest missing ...
Suppose we have an array with N numbers, we have to check whether the 3 elements such that b[i]< b[j] < b[k] and i < j < k in linear (O(n)) time. If there are multiple such triplets, then print any one of them.
Given a maze in the form of a rectangular matrix, filled with either `O`, `X`, or `M`, where `O` represents an open cell, `X` represents a blocked cell, and `M` represents landmines in the maze, find the shortest distance of every open cell in the maze f