using System; using System.Collections.Generic; using System.Text.Json; class Program { static void Main() { int t = int.Parse(Console.ReadLine()); // Количество наборов входных данных List<string> results = new List<string>(); // Список результатов for (int i = 0; i < t; i++) { int n = int.Parse(Console.ReadLine()); // Количество строк в JSON-объекте List<string> lines = new List<string>(); // Список строк JSON-объекта for (int j = 0; j < n; j++) { lines.Add(Console.ReadLine()); } string json = string.Join("", lines); // Собираем JSON-объект из строк // Парсим JSON-объект JsonElement root = JsonSerializer.Deserialize<JsonElement>(json); // Применяем операцию prettify JsonElement prettified = Prettify(root); // Сериализуем результат обратно в JSON-строку string result = JsonSerializer.Serialize(prettified); results.Add(result); } // Выводим результаты foreach (var result in results) { Console.WriteLine(result); } } // Функция для применения операции prettify к JSON-объекту static JsonElement Prettify(JsonElement json) { if (json.ValueKind == JsonValueKind.Array) { // Создаем новый массив для преттифицированных элементов List<JsonElement> prettifiedArray = new List<JsonElement>(); foreach (var item in json.EnumerateArray()) { // Применяем операцию prettify к каждому элементу массива JsonElement prettifiedItem = Prettify(item); // Добавляем только непустые элементы if (!IsEmpty(prettifiedItem)) { prettifiedArray.Add(prettifiedItem); } } // Возвращаем преттифицированный массив return JsonSerializer.Deserialize<JsonElement>(JsonSerializer.Serialize(prettifiedArray)); } else if (json.ValueKind == JsonValueKind.Object) { // Создаем новый словарь для преттифицированных элементов Dictionary<string, JsonElement> prettifiedObject = new Dictionary<string, JsonElement>(); foreach (var property in json.EnumerateObject()) { // Применяем операцию prettify к каждому значению свойства объекта JsonElement prettifiedValue = Prettify(property.Value); // Добавляем только непустые значения if (!IsEmpty(prettifiedValue)) { prettifiedObject[property.Name] = prettifiedValue; } } // Возвращаем преттифицированный объект return JsonSerializer.Deserialize<JsonElement>(JsonSerializer.Serialize(prettifiedObject)); } // Возвращаем строковые значения как есть return json; } // Функция для проверки, является ли JSON-элемент пустым static bool IsEmpty(JsonElement json) { return json.ValueKind == JsonValueKind.Null || (json.ValueKind == JsonValueKind.Array && json.GetArrayLength() == 0) || (json.ValueKind == JsonValueKind.Object && json.EnumerateObject().Count() == 0); } }
Write, Run & Share C# code online using OneCompiler's C# online compiler for free. It's one of the robust, feature-rich online compilers for C# language, running on the latest version 8.0. Getting started with the OneCompiler's C# compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C#
and start coding.
OneCompiler's C# online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.
using System;
namespace Sample
{
class Test
{
public static void Main(string[] args)
{
string name;
name = Console.ReadLine();
Console.WriteLine("Hello {0} ", name);
}
}
}
C# is a general purpose object-oriented programming language by Microsoft. Though initially it was developed as part of .net but later it was approved by ECMA and ISO standards.
You can use C# to create variety of applications, like web, windows, mobile, console applications and much more using Visual studio.
Data Type | Description | Range | size |
---|---|---|---|
int | To store integers | -2,147,483,648 to 2,147,483,647 | 4 bytes |
double | to store large floating point numbers with decimals | can store 15 decimal digits | 8 bytes |
float | to store floating point numbers with decimals | can store upto 7 decimal digits | 4 bytes |
char | to store single characters | - | 2 bytes |
string | to stores text | - | 2 bytes per character |
bool | to stores either true or false | - | 1 bit |
datatype variable-name = value;
When ever you want to perform a set of operations based on a condition or set of few conditions IF-ELSE is used.
if(conditional-expression) {
// code
}
else {
// code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression) {
case value1:
// code
break; // optional
case value2:
// code
break; // optional
...
default:
// code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement) {
// code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while(condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Array is a collection of similar data which is stored in continuous memory addresses. Array values can be fetched using index. Index starts from 0 to size-1.
data-type[] array-name;
Method is a set of statements which gets executed only when they are called. Call the method name in the main function to execute the method.
static void method-name()
{
// code to be executed
}