two elements with difference K in c++
bool diffK(int A[], int N, int K) {
sort(A, A+N);
int i = 0, j = 0;
while (i < N && j < N) {
if (A[i] == A[j] + K) return true;
else if (A[i] < A[j] + K) i++;
else j++;
}
return false;
}Pairs with Specific Difference
function findPairsWithGivenDifference(arr, k):
# since we don't allow duplicates, no pair can satisfy x - 0 = y
if k == 0:
return []
map = {}
answer = []
for (x in arr):
map[x - k] = x
for (y in arr):
if y in map:
answer.push([map[y], y])
return answerCopyright © 2021 Codeinu
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