Codeforces 1373E - Sum of Digits (构造) Description题目大意: f(x)f(x)为十进制下x每一位上的数字的和。求满足f(x)+f(x+1)+...+f(x+k)=nf(x)+f(x+1)+...+f(x+k)=n的最小x。思路由于k特别小(<=9),故x+k至多发生一次进位。x每加1,必有某一位加上1。如果发生进位,那么f(x)f...
CodeForces 489C (贪心) Given Length and Sum of Digits...,题意:找出m位且各个数位数字之和为s的最大和最小整数,不包括前导0(比如说003是非法的),但0是可以的。分析:这题是用贪心来做的,同样是m位数,前面的数字越大这个数就越大。所以写一个can(intm,ints)函数,来
Maximum Sum of Digits(CodeForces 1060B) Description You are given a positive integer nn. Let S(x) be sum of digits in base 10 representation of xx, for example, S(123)=1+2+3=6, S(0)=0. Your task is to find two integers a,ba,b, such that 0≤a,b≤n, a+b=n and S(a)...
You are given a positive integer n. Let S(x) be sum of digits in base 10 representation of xx, for example, S(123)=1+2+3=6, S(0)=0. Your task is to find two integers a,ba,b, such that 0≤a,b≤n, a+b=n and S(a)+S(b) is the largest possible among all such pairs...
Calculate in [L, R] how many numbers whose sum of digits and sum of squares of digits are primes ? By turbozone88, history, 16 months ago, Calculate in [L, R] how many numbers whose sum of digits and sum of squares of digits are primes ? Limit : * 1 <= L <= R <= 10...
【刷题】Sum of Digits【1】 一、题目 1.题目描述 二、解题报告 1.思路分析 2.代码详解 一、题目 1.题目描述 题目: 在这里插入图片描述 输入: 在这里插入图片描述 输出: 在这里插入图片描述 示例 : 在这里插入图片描述 提示: In the first sample the number already is one-digit — Herald can’...
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Subtract the Product and Sum of Digits of an Integer 2019-12-11 22:26 − 题目如下: Given an integer number n, return the difference between the product of its digits and the sum of its digits. Example 1: Input: n = 234 Out... seyjs 0 417 codeforces 1269 E K Integers ...
1281. Subtract the Product and Sum of Digits of an Integer 2019-12-19 05:33 −Given an integer number n, return the difference between the product of its digits and the sum of its digits. Example 1: Input: n = 234 Out...
Codeforces Round #513B. MaximumSumof Digits(思维) 题目链接:http://codeforces.com/contest/1060/problem/B题意是输入一个n,从1-n中找两个数,使得a+b=n,而且S(a)+S(b)的值是所有两个数中最大的...思路算是贪心吧,为了让S(a)+S(b)的值最大,所以我们要让a里尽量多的包含9,这样就能求出最大...