# Print all possible combinations of given sum from 1 to n

Here given code implementation process.

``````//C Program
//Print all possible combinations of given sum from 1 to n
#include<stdio.h>

//Print all possible combinations of numbers to reach a given sum
void combinations(int n ,int result[] ,int index,int sum)
{

if(index > n || sum >n)
{
return;
}

if(sum == n)
{
//Display result
for (int i = 0; i < index; ++i)
{
printf(" %d ",result[i] );
}

printf("\n");
}
else
{
for (int i = n; i >= 1; --i)
{
//get the number
result[index] = i;
combinations(n ,result,index+1,sum + i);
}

}
}

int main()
{

int n=6;

//auxiliary space to store result of given sum
int result[n];

combinations(n,result,0,0);

return 0;
}```
```

#### Output

`````` 6
5  1
4  2
4  1  1
3  3
3  2  1
3  1  2
3  1  1  1
2  4
2  3  1
2  2  2
2  2  1  1
2  1  3
2  1  2  1
2  1  1  2
2  1  1  1  1
1  5
1  4  1
1  3  2
1  3  1  1
1  2  3
1  2  2  1
1  2  1  2
1  2  1  1  1
1  1  4
1  1  3  1
1  1  2  2
1  1  2  1  1
1  1  1  3
1  1  1  2  1
1  1  1  1  2
1  1  1  1  1  1``````
``````#include<iostream>

using namespace std;

/*
C++ Program
Print all possible combinations of given sum from 1 to n
*/
class MyArray {
public:

//Print all possible combinations of numbers to reach a given sum
void combinations(int n, int result[], int index, int sum) {
if (index > n || sum > n) {
return;
}
if (sum == n) {
//Display result

for (int i = 0; i < index; ++i) {
cout << " " << result[i] << " ";
}
cout << "\n";
} else {
for (int i = n; i >= 1; --i) {
//get the number
result[index] = i;
this->combinations(n, result, index + 1, sum + i);
}
}
}
};
int main() {
MyArray obj = MyArray();
int n = 6;
//auxiliary space to store result of given sum
int result[n];
obj.combinations(n, result, 0, 0);
return 0;
}```
```

#### Output

`````` 6
5  1
4  2
4  1  1
3  3
3  2  1
3  1  2
3  1  1  1
2  4
2  3  1
2  2  2
2  2  1  1
2  1  3
2  1  2  1
2  1  1  2
2  1  1  1  1
1  5
1  4  1
1  3  2
1  3  1  1
1  2  3
1  2  2  1
1  2  1  2
1  2  1  1  1
1  1  4
1  1  3  1
1  1  2  2
1  1  2  1  1
1  1  1  3
1  1  1  2  1
1  1  1  1  2
1  1  1  1  1  1``````
``````/*
Java Program
Print all possible combinations of given sum from 1 to n
*/

public class MyArray
{
//Print all possible combinations of numbers to reach a given sum
public void combinations(int n ,int []result ,int index,int sum)
{

if(index > n || sum >n)
{
return;
}

if(sum == n)
{
//Display result
for (int i = 0; i < index; ++i)
{
System.out.print(" "+result[i]+" ");
}

System.out.print("\n");
}
else
{
for (int i = n; i >= 1; --i)
{
//get the number
result[index] = i;
combinations(n ,result,index+1,sum + i);
}

}
}

public static void main(String[] args) {

MyArray obj = new MyArray();

int n=6;

//auxiliary space to store result of given sum
int []result = new int[n];

obj.combinations(n,result,0,0);

}
}```
```

#### Output

`````` 6
5  1
4  2
4  1  1
3  3
3  2  1
3  1  2
3  1  1  1
2  4
2  3  1
2  2  2
2  2  1  1
2  1  3
2  1  2  1
2  1  1  2
2  1  1  1  1
1  5
1  4  1
1  3  2
1  3  1  1
1  2  3
1  2  2  1
1  2  1  2
1  2  1  1  1
1  1  4
1  1  3  1
1  1  2  2
1  1  2  1  1
1  1  1  3
1  1  1  2  1
1  1  1  1  2
1  1  1  1  1  1``````
``````/*
C# Program
Print all possible combinations of given sum from 1 to n
*/
using System;

public class MyArray {
//Print all possible combinations of numbers to reach a given sum
public void combinations(int n, int[] result, int index, int sum) {
if (index > n || sum > n) {
return;
}
if (sum == n) {
//Display result

for (int i = 0; i < index; ++i) {
Console.Write(" " + result[i] + " ");
}
Console.Write("\n");
} else {
for (int i = n; i >= 1; --i) {
//get the number
result[index] = i;
combinations(n, result, index + 1, sum + i);
}
}
}
public static void Main(String[] args) {
MyArray obj = new MyArray();
int n = 6;
int[]
//auxiliary space to store result of given sum
result = new int[n];
obj.combinations(n, result, 0, 0);
}
}```
```

#### Output

`````` 6
5  1
4  2
4  1  1
3  3
3  2  1
3  1  2
3  1  1  1
2  4
2  3  1
2  2  2
2  2  1  1
2  1  3
2  1  2  1
2  1  1  2
2  1  1  1  1
1  5
1  4  1
1  3  2
1  3  1  1
1  2  3
1  2  2  1
1  2  1  2
1  2  1  1  1
1  1  4
1  1  3  1
1  1  2  2
1  1  2  1  1
1  1  1  3
1  1  1  2  1
1  1  1  1  2
1  1  1  1  1  1``````
``````<?php
/*
Php Program
Print all possible combinations of given sum from 1 to n
*/
class MyArray {
//Print all possible combinations of numbers to reach a given sum

public 	function combinations(\$n, &\$result, \$index, \$sum) {
if (\$index > \$n || \$sum > \$n) {
return;
}
if (\$sum == \$n) {
//Display result

for (\$i = 0; \$i < \$index; ++\$i) {
echo(" ". \$result[\$i] ." ");
}
echo("\n");
} else {
for (\$i = \$n; \$i >= 1; --\$i) {
//get the number
\$result[\$index] = \$i;
\$this->combinations(\$n, \$result, \$index + 1, \$sum + \$i);
}
}
}
}

function main() {
\$obj = new MyArray();
\$n = 6;
//auxiliary space to store result of given sum
\$result = array_fill(0, \$n, 0);
\$obj->combinations(\$n, \$result, 0, 0);

}
main();```
```

#### Output

`````` 6
5  1
4  2
4  1  1
3  3
3  2  1
3  1  2
3  1  1  1
2  4
2  3  1
2  2  2
2  2  1  1
2  1  3
2  1  2  1
2  1  1  2
2  1  1  1  1
1  5
1  4  1
1  3  2
1  3  1  1
1  2  3
1  2  2  1
1  2  1  2
1  2  1  1  1
1  1  4
1  1  3  1
1  1  2  2
1  1  2  1  1
1  1  1  3
1  1  1  2  1
1  1  1  1  2
1  1  1  1  1  1``````
``````/*
Node Js Program
Print all possible combinations of given sum from 1 to n
*/
class MyArray {
//Print all possible combinations of numbers to reach a given sum
combinations(n, result, index, sum) {
if (index > n || sum > n) {
return;
}

if (sum == n) {
//Display result

for (var i = 0; i < index; ++i) {
process.stdout.write(" " + result[i] + " ");
}

process.stdout.write("\n");
} else {
for (var i = n; i >= 1; --i) {
//get the number
result[index] = i;
this.combinations(n, result, index + 1, sum + i);
}
}
}
}

function main(args) {
var obj = new MyArray();
var n = 6;
//auxiliary space to store result of given sum
var result = Array(n).fill(0);
obj.combinations(n, result, 0, 0);
}

main();```
```

#### Output

`````` 6
5  1
4  2
4  1  1
3  3
3  2  1
3  1  2
3  1  1  1
2  4
2  3  1
2  2  2
2  2  1  1
2  1  3
2  1  2  1
2  1  1  2
2  1  1  1  1
1  5
1  4  1
1  3  2
1  3  1  1
1  2  3
1  2  2  1
1  2  1  2
1  2  1  1  1
1  1  4
1  1  3  1
1  1  2  2
1  1  2  1  1
1  1  1  3
1  1  1  2  1
1  1  1  1  2
1  1  1  1  1  1``````
``````# Python 3 Program
# Print all possible combinations of given sum from 1 to n
class MyArray :
# Print all possible combinations of numbers to reach a given sum
def combinations(self, n, result, index, sum) :
if (index > n or sum > n) :
return

if (sum == n) :
# Display result
i = 0
while (i < index) :
print(" ", result[i] ," ", end = "")
i += 1

print("\n", end = "")
else :
i = n
while (i >= 1) :
# get the number
result[index] = i
self.combinations(n, result, index + 1, sum + i)
i -= 1

def main() :
obj = MyArray()
n = 6
result = [0] * n
obj.combinations(n, result, 0, 0)

if __name__ == "__main__":
main()```
```

#### Output

``````  6
5    1
4    2
4    1    1
3    3
3    2    1
3    1    2
3    1    1    1
2    4
2    3    1
2    2    2
2    2    1    1
2    1    3
2    1    2    1
2    1    1    2
2    1    1    1    1
1    5
1    4    1
1    3    2
1    3    1    1
1    2    3
1    2    2    1
1    2    1    2
1    2    1    1    1
1    1    4
1    1    3    1
1    1    2    2
1    1    2    1    1
1    1    1    3
1    1    1    2    1
1    1    1    1    2
1    1    1    1    1    1``````
``````# Ruby Program
# Print all possible combinations of given sum from 1 to n
class MyArray
# Print all possible combinations of numbers to reach a given sum
def combinations(n, result, index, sum)
if (index > n || sum > n)
return
end
if (sum == n)
# Display result
i = 0
while (i < index)
print(" ", result[i] ," ")
i += 1
end
print("\n")
else
i = n
while (i >= 1)
# get the number
result[index] = i
self.combinations(n, result, index + 1, sum + i)
i -= 1
end
end
end
end
def main()
obj = MyArray.new()
n = 6
result = Array.new(n, 0)
obj.combinations(n, result, 0, 0)
end
main()```
```

#### Output

`````` 6
5  1
4  2
4  1  1
3  3
3  2  1
3  1  2
3  1  1  1
2  4
2  3  1
2  2  2
2  2  1  1
2  1  3
2  1  2  1
2  1  1  2
2  1  1  1  1
1  5
1  4  1
1  3  2
1  3  1  1
1  2  3
1  2  2  1
1  2  1  2
1  2  1  1  1
1  1  4
1  1  3  1
1  1  2  2
1  1  2  1  1
1  1  1  3
1  1  1  2  1
1  1  1  1  2
1  1  1  1  1  1
``````
``````/*
Scala Program
Print all possible combinations of given sum from 1 to n
*/
class MyArray {
//Print all possible combinations of numbers to reach a given sum
def combinations(n: Int, result: Array[Int], index: Int, sum: Int): Unit = {
if (index > n || sum > n) {
return;
}
var i: Int = 0;
if (sum == n) {
//Display result
i = 0;
while (i < index) {
print(" " + result(i) + " ");
i += 1;
}
print("\n");
} else {
i = n;
while (i >= 1) {
//get the number
result(index) = i;
this.combinations(n, result, index + 1, sum + i);
i -= 1;
}
}
}
}
object Main {
def main(args: Array[String]): Unit = {
val obj: MyArray = new MyArray();
val n: Int = 6;
var result: Array[Int] = Array.fill[Int](n)(0);
obj.combinations(n, result, 0, 0);
}
}```
```

#### Output

`````` 6
5  1
4  2
4  1  1
3  3
3  2  1
3  1  2
3  1  1  1
2  4
2  3  1
2  2  2
2  2  1  1
2  1  3
2  1  2  1
2  1  1  2
2  1  1  1  1
1  5
1  4  1
1  3  2
1  3  1  1
1  2  3
1  2  2  1
1  2  1  2
1  2  1  1  1
1  1  4
1  1  3  1
1  1  2  2
1  1  2  1  1
1  1  1  3
1  1  1  2  1
1  1  1  1  2
1  1  1  1  1  1``````
``````/*
Swift Program
Print all possible combinations of given sum from 1 to n
*/
class MyArray {
//Print all possible combinations of numbers to reach a given sum
func combinations(_ n: Int, _ result: inout [Int], _ index: Int, _ sum: Int) {
if (index > n || sum > n) {
return;
}
var i: Int = 0;
if (sum == n) {
//Display result
i = 0;
while (i < index) {
print(" ", result[i] ," ", terminator: "");
i += 1;
}
print("\n", terminator: "");
} else {
i = n;
while (i >= 1) {
//get the number
result[index] = i;
self.combinations(n, &result, index + 1, sum + i);
i -= 1;
}
}
}
}
func main() {
let obj: MyArray = MyArray();
let n: Int = 6;
var result: [Int] = Array(repeating: 0, count: n);
obj.combinations(n, &result, 0, 0);
}
main();```
```

#### Output

``````  6
5    1
4    2
4    1    1
3    3
3    2    1
3    1    2
3    1    1    1
2    4
2    3    1
2    2    2
2    2    1    1
2    1    3
2    1    2    1
2    1    1    2
2    1    1    1    1
1    5
1    4    1
1    3    2
1    3    1    1
1    2    3
1    2    2    1
1    2    1    2
1    2    1    1    1
1    1    4
1    1    3    1
1    1    2    2
1    1    2    1    1
1    1    1    3
1    1    1    2    1
1    1    1    1    2
1    1    1    1    1    1``````

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