Example: 19 is a happy number 12 + 92 82 + 22 62 + 82 12 + 02 + 02 Credits: Special thanks to @mithmatt and @ts for adding this problem and creating all test cases. class Solution { public: //不用vector 也可以用set等直接find查找 bool isHap...
replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 (where it will stay), or it loops endlessly in a cycle which does not include 1. Those numbers for which this process ends in 1 are happy numbers. ...
程序如下: 1classSolution {2public:3boolisHappy(intn) {4vector<int>vec;5vec.push_back(n);6while(n!=1)7{8intsum =0;9inttmpN =n;10while(tmpN !=0)11{12sum += (tmpN %10) * (tmpN %10);13tmpN /=10;14}15n =sum;1617if(find(vec.begin(), vec.end(), n) !=vec.end()...
basketball best,so having a P.E.class always makes me happy.We also have (6) mathon Fridays.It's a very useful subject because I think everything is based on (以……为基 础) numbers.Classes usually finish early,at about 4 o'clock.(7) On Friday evenings I will go ...
Find out with this test designed by Dr. Raj Persaud, consultant psychiatrist at the Maudsley Hospital, London. Consider the following statements: 1. My ability to concentrate is so good that I can forget how time has flown. Agree: ADisagree: B ...
Students will learn how to talk about birthdays, using the months of the year and ordinal numbers to express dates.They will also learn how to ask about birthdays,moving on to how to plan and buy things for a birthday party.They will revise question words and the form of wh-questions ...
Next, the teacher will ask Tom “How old are you” He may give me the answer “ten” Then I will show some number cards(one to ten), and ask the whole class to read these words. Then write these numbers down on the blackboard.3. Ask students to predict what the pstening material...
classSolution{public:intgetSum(intnum){ vector<int> digits;while(num >9) { digits.push_back(num %10); num = num /10; } digits.push_back(num);intsum =0;for(inti =0; i < digits.size(); i++) { sum += digits[i] * digits[i]; ...
Back then, you could find scores of hot Thai women inside soapies. Today, the numbers are fewer but still not an impossible task. The Best Soapy Massage You Can Visit Now Even though Bangkok’s soapy scene is shrinking I really think you should check one out. Checking out the girls insid...
}if(sum ==1)returntrue;if(record.find(sum) == record.end())//当前数字没有出现过{ record.insert(sum); n=sum; }elsereturnfalse; } } 还有用O(1)空间的,就像链表找有没有圈一样,用快慢指针的思路。 publicclassSolution {publicbooleanisHappy(intn) {intx =n;inty =n;while(x>1){ ...