# Chuck Norris

Codingame: Chuck Norris

##### The Goal

Binary with 0 and 1 is good, but binary with only 0, or almost, is even better! Originally, this is a concept designed by Chuck Norris to send so called unary messages.

Write a program that takes an incoming message as input and displays as output the message encoded using Chuck Norris’ method.

##### Rules

Here is the encoding principle:

• The input message consists of ASCII characters (7-bit)
• The encoded output message consists of blocks of 0
• A block is separated from another block by a space
• Two consecutive blocks are used to produce a series of same value bits (only1 or0 values):
– First block: it is always 0 or 00. If it is 0, then the series contains 1, if not, it contains 0
– Second block: the number of 0 in this block is the number of bits in the series
##### Example

Let’s take a simple example with a message which consists of only one character: Capital C. C in binary is represented as 1000011, so with Chuck Norris’ technique this gives:

• 0 0 (the first series consists of only a single 1)
• 00 0000 (the second series consists of four 0)
• 0 00 (the third consists of two 1)

So C is coded as: 0 0 00 0000 0 00

Second example, we want to encode the message CC (i.e. the 14 bits 10000111000011) :

• 0 0 (one single 1)
• 00 0000 (four 0)
• 0 000 (three 1)
• 00 0000 (four 0)
• 0 00 (two 1)

So CC is coded as: 0 0 00 0000 0 000 00 0000 0 00

##### Game Input
Input
Line 1: the message consisting of N ASCII characters (without carriage return)
Output
The encoded message
Constraints
0 < N < 100
##### Java Solution
```class Solution {

public String toBinary(int dec) {
String res = "";
String temp = "";
while (dec > 0) {
if (dec % 2 != 0) res += 1;
if (dec % 2 == 0) res += 0;
dec /= 2;
}
for (int i = res.length() - 1; i >= 0; i--) {
temp += res.charAt(i);
}
res = temp;
if (res.length() == 6) res = "0" + res;
return res;
}

public String toUnary(String binary) {
StringBuilder builder = new StringBuilder();
for (int i = 0; i < binary.length(); i++) {
if (binary.charAt(i) == '1') {
if (i == 0 || (i > 0 && binary.charAt(i - 1) == '0')) {
if (i == 0) builder.append("0 0");
if (i > 0) builder.append(" 0 0");
}
if ((i > 0 && binary.charAt(i - 1) == '1')) {
builder.append("0");
}
}
if (binary.charAt(i) == '0') {
if ((i == 0) || (i > 0 && binary.charAt(i - 1) == '1')) {
if (i == 0) builder.append("00 0");
if (i > 0) builder.append(" 00 0");
}
if ((i > 0 && binary.charAt(i - 1) == '0')) {
builder.append("0");
}
}
}
binary = builder.toString();
return binary;
}

public String encode(String chuckMessage) {
String result = "";
StringBuilder builder = new StringBuilder();
for (int i = 0; i < chuckMessage.length(); i++) {
int a = (int) (chuckMessage.charAt(i));
result = toBinary(a);
builder.append(result);
}
result = builder.toString();