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Create countsum.java #46

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22 changes: 22 additions & 0 deletions countsum.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
public class find {
public static void main(String args[])
{
int[] arr = { 1, 5, 7, -1, 5 };
int sum = 6;
getPairsCount(arr, sum);
}
public static void getPairsCount(int[] arr, int sum)
{

int count = 0; // Initialize result

// Consider all possible pairs and check their sums
for (int i = 0; i < arr.length; i++)
for (int j = i + 1; j < arr.length; j++)
if ((arr[i] + arr[j]) == sum)
count++;

System.out.printf("Count of pairs is %d", count);
}
}