Problem:
Given an array of ints, we'll say that a triple is a value appearing 3 times in a row in the array. Return true if the array does not contain any triples.
noTriples({1, 1, 2, 2, 1}) → true
noTriples({1, 1, 2, 2, 2, 1}) → false
noTriples({1, 1, 1, 2, 2, 2, 1}) → false
Solution:
public boolean noTriples(int[] nums) {
int count = 0;
for (int i = 0 ; i < nums.length - 1;i++) {
if (i+2 <= nums.length -1) {
if (nums[i] == nums[i+1] && nums[i] == nums[i+2])
return false;
}
} return true;
}
public boolean noTriples(int[] nums) {
ReplyDeletefor(int i = 0; i < nums.length-2; i++){
if(nums[i] == nums[i+1] && nums[i+1] == nums[i+2]){
return false;
}
}
return true;
}
With Java Stream
ReplyDeletepublic static boolean noTriples(int[] nums) {
return java.util.stream.IntStream.range(0, nums.length - 2)
.noneMatch(i -> nums[i] == nums[i+1] && nums[i] == nums[i+2]);
}