给你一个整数 n ,找出从 1 到 n 各个整数的 Fizz Buzz 表示,并用字符串数组 answer(下标从 1 开始)返回结果,其中:
answer[i] == "FizzBuzz" 如果 i 同时是 3 和 5 的倍数。
answer[i] == "Fizz" 如果 i 是 3 的倍数。
answer[i] == "Buzz" 如果 i 是 5 的倍数。
answer[i] == i (以字符串形式)如果上述条件全不满足。
示例 1:
输入:n = 3
输出:["1","2","Fizz"]
示例 2:
输入:n = 5
输出:["1","2","Fizz","4","Buzz"]
示例 3:
输入:n = 15
输出:["1","2","Fizz","4","Buzz","Fizz","7","8","Fizz","Buzz","11","Fizz","13","14","FizzBuzz"]
提示:
1 <= n <= 104
来源:力扣(LeetCode)
链接:https://leetcode.cn/problems/fizz-buzz
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class Solution { public: vector<string> fizzBuzz(int n) { vector<string> answer; for (int i = 1; i <= n; ++i){ if (i % 15 == 0){ answer.insert(answer.end(), "FizzBuzz"); } else if(i % 3 ==0 ){ answer.emplace(answer.end(), "Fizz"); }//emplace() 在插入元素时,是在容器的指定位置直接构造元素,而不是先单独生成,再将其复制(或移动)到容器中。因此,在实际使用中,推荐大家优先使用 emplace()。 else if (i % 5 == 0){ answer.push_back("Buzz"); } else{ answer.push_back(to_string(i));; // 转字符串 } } return answer; } };
官方题解:
class Solution { public: vector<string> fizzBuzz(int n) { vector<string> answer; for (int i = 1; i <= n; i++) { string curr; if (i % 3 == 0) { curr += "Fizz"; } if (i % 5 == 0) { curr += "Buzz"; } if (curr.size() == 0) { curr += to_string(i); } answer.emplace_back(curr); } return answer; } };
标签:示例,int,vector,412,Buzz,answer,Fizz From: https://www.cnblogs.com/slowlydance2me/p/16863995.html