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1281. Subtract the Product and Sum of Digits of an Integer
class Solution {
public int subtractProductAndSum(int n) {
ArrayList<Integer> list = new ArrayList<Integer>();
while(n != 0){
list.add(n%10);
n = n/10;
}
int product = 1;
int sum = 0;
for(int i = 0; i < list.size(); i++){
product *= list.get(i);
sum+= list.get(i);
}
return product - sum;
}
}
class Solution {
public boolean isMonotonic(int[] nums) {
boolean increasing = true;
boolean decreasing = true;
for(int i = 1; i < nums.length; i++){
if(nums[i]< nums[i-1]) {
increasing = false;
break;
}
}
for( int i = 1; i < nums.length; i++){
if(nums[i]> nums[i-1]){
decreasing = false;
break;
}
}
return increasing|decreasing;
}
}
