A positive (strictly greater than zero) integer is called round if it is of the form d00…0. In other words, a positive integer is round if all its digits except the leftmost (most significant) are equal to zero. In particular, all numbers from 11 to 99 (inclusive) are round.
For example, the following numbers are round: 4000, 1, 9, 800, 90. The following numbers are not round: 110, 707, 222, 1001.
You are given a positive integer n (1≤n≤104). Represent the number n as a sum of round numbers using the minimum number of summands (addends). In other words, you need to represent the given number n as a sum of the least number of terms, each of which is a round number.
給定一個正整數 n(1≤n≤104)。用最少的加數表示數字 n,使其表示為一系列概數之和。換句話說,您需要將給定的數字 n 表示為最少數量的項,每個項都是一個概數。
輸入
The first line contains an integer t (1≤t≤104) — the number of test cases in the input. Then t test cases follow.
Each test case is a line containing an integer n (1≤n≤104).
第一行包含了一個整數 t (1≤t≤104) — 多少個測試案例,也就是接下來的 t 行。
每一個測試案例均占一行,包含了一個整數 n (1≤n≤104)。
輸出
Print t answers to the test cases. Each answer must begin with an integer k — the minimum number of summands. Next, k terms must follow, each of which is a round number, and their sum is n. The terms can be printed in any order. If there are several answers, print any of them.
印出 t 個答案,每一個答案應該由一個整數 k 開始 — 加數的最小數量。接下來,k 個加數應該會顯示在下一行,每一個都是一個概數(除了最高位數外,其餘都是0),而且他們的總和是 n。加數的答案可以被用任何順序印出,要是有多個答案,印出其中之一就好。
int t = int.Parse(Console.ReadLine());
for(int i=0; i<t; i++){
int n = int.Parse(Console.ReadLine());
List<int>tmp = new List<int>();
int multi = 1;
while(n>0){
if(n%10>0){
tmp.Add(n%10*multi);
}
n/=10;
multi*=10;
}
Console.WriteLine(tmp.Count);
Console.WriteLine(string.Join(" ", tmp));
}
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