参考链接:https://leetcode.cn/problems/consecutive-numbers/solutions/21537/sql-server-jie-fa-by-neilsons row_number()over([partition by value_expression,...n]orderbycolumnName) 题目解析: 1. 要获取至少连续出现三次的数字,不能强力破解,三个表join,如果出现一百次呢? 2. 寻找连续相同num数字,但是id...
https://leetcode.com/discuss/54463/simple-solution https://leetcode.com/discuss/87854/simple-sql-with-join-1484-ms https://leetcode.com/discuss/69767/two-solutions-inner-join-and-two-variables LeetCode All in One 题目讲解汇总(持续更新中...)...
题目链接:https://leetcode.com/problems/consecutive-numbers/ 题目: Write a SQL query to find all numbers that appear at least three times consecutively. +—-+—–+ | Id | Num | +—-+—–+ | 1 | 1 | | 2 | 1 | | 3 | 1 | | 4 | 2 | | 5 | 1 | | 6 | 2 | | 7 |...
For example, given the aboveLogstable,1is the only number that appears consecutively for at least three times. 思路: 自己没看题解做出来的第一道middle难度的题目,这个题和Rasing Temprature很像,考察的都是一个表中不同元组之间的某些属性的比较 那个easy的题目只要比较连续的两行就好,而这个题目要比较三...
LeetCode——Consecutive Numbers Description: Write a SQL query to find all numbers that appear at least three times consecutively. +---+---+ | Id | Num | +---+---+ | 1 | 1 | | 2 | 1 | | 3 | 1 | | 4 | 2 | | 5 |...
LeetCode——Consecutive Numbers Write aSQLquerytofindallnumbers that appearatleast three times consecutively.+---+---+|Id|Num|+---+---+|1|1||2|1||3|1||4|2||5|1||6|2||7|2|+---+---+Forexample, given the above Logstable,1istheonlynumber that appears consecutivelyfor...
classSolution {publicintconsecutiveNumbersSum(intN) {intways = 0;for(longlen = 2; (1 + len) * len / 2 <= N; len++) {if((N - (1 + len) * len / 2) % len == 0) { ways++; } }returnways + 1; } } Solution that wows everyone: Counting odd numbers by applying prime fa...
时间O(1) - 只要计算sqrt(2N)次即可 空间O(1) Java实现 1classSolution {2publicintconsecutiveNumbersSum(intN) {3intres = 1;4for(intk = 2; k < Math.sqrt(2 * N); k++) {5if((N - k * (k - 1) / 2) % k == 0) {6res++;7}8}9returnres;10}11}...
classSolution{ public:intconsecutiveNumbersSum(intN) {intres =0,sum=0;for(inti =1;sum< N; ++i) {sum+= i;if((N -sum) % i ==0) ++res; }returnres; } }; Github 同步地址: https://github.com/grandyang/leetcode/issues/829
classSolution{publicintconsecutiveNumbersSum(intn){intresult=0;for(inti=1;n>0;n-=i++)result+=(n%i==0?1:0);returnresult;}} Python: classSolution:defconsecutiveNumbersSum(self,n:int)->int:result,i=0,1whilen>0:result+=not(n%i)n-=i ...