sorting

[Solved] How can i sort a string with integers in c++?

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Here it’s done with std::sort from the header algorithm #include <iostream> #include <string> #include <algorithm> #include <vector> int main(){ std::vector<std::string> nums{ “922003001020293839297830207344987344973074734”, “766352786207892397340783784078348747606208602”, “182823068326283756515117829362376823572395775” }; std::cout << “unsorted: ” << std::endl; for (auto i : nums){ std::cout << i << std::endl; } std::sort(nums.begin(), nums.end()); //sort it std::cout << “\nsorted: ” << std::endl; for (auto i … Read more

[Solved] Write a program that uses Bubble Sort to sort integers in a 2 dimensional array in ascending order

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You can cast pointer to the first row of a two-dimensional array to pointer to int and sort the array as a one-dimensional array. Here you are #include <iostream> #include <iomanip> #include <cstdlib> #include <ctime> void bubble_sort( int *a, size_t n ) { for ( size_t last /* = n */; not ( n < … Read more

[Solved] Sort array contains numeric string using c# array

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You need give an order (actually a equivalence relation) to be able to sort. The order on characters is usually a,b,c,… and the order usually given on words such as ‘one’ is called lexicographic order. However you want to sort by the meaning behind, its semantic: integers. Your computer doesn’t know that you want this, … Read more

[Solved] How to get popular keywords in an array

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array_count_values will output the count as like Array ( [keyword1] => 10 [keyword2] => 3 [keyword3] => 6 [keyword4] => 5 [keyword5] => 1 ) But For your desired output you need to use foreach Demo $arra = Array ( 0 => “keyword1”, 1 => “keyword1”, 2 => “keyword1”, 3 => “keyword1”, 4 => “keyword1”, … Read more

[Solved] How to approach this hackerrank puzzle?

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I could not post it to comment section. Please see below: List<Integer> integers = Arrays.asList(1, 2, 3, 4); int i = 0; StringBuilder sb = new StringBuilder(“[“); for (int value : integers) { sb.append((i == 0) ? “” : (i % 2 == 0 ? “,” : “:”)).append(value); i++; } sb.append(“]”); System.out.println(sb.toString()); Output is: [1:2,3:4] … Read more

[Solved] Getting all ordered sublists of ordered lists

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from itertools import combinations, permutations perm=[] index = [9,7,6,5,2,10,8,4,3,1] perm.append(index) M = 3 slicer = [x for x in combinations(range(1, len(index)), M – 1)] slicer = [(0,) + x + (len(index),) for x in slicer] result = [tuple(p[s[i]:s[i + 1]] for i in range(len(s) – 1)) for s in slicer for p in perm] 1 … Read more

[Solved] How to sort elements of pairs inside vector?

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You just: std::sort(v.begin(), v.end()); std::pair is lexicographically compared. On the other hand if you want to sort them with respect the second element of the std::pair then you would have to defind a custom comparator in the following manner: std::sort(v.begin(), v.end(), [](std::pair<int, std::string> const &p1, std::pair<int, std::string> const &p2) { return (p1.second == p2.second)? p1.first … Read more