CodeForces-118A【水题】

本文详细解析了CodeForces-118A题目的解题思路,通过将大写字母转换为小写字母并去除特定字符,最终实现题目要求的字符串处理。介绍了使用C++进行编程的具体步骤,包括字符数组的运用和条件判断。

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题目:https://vjudge.net/problem/CodeForces-118A
解题思路:先把大写字母转换为小写字母,再删除题目中要求的“aoyeui”
等元素,最后再输出时字母前加一个’.’ 就OK了

#include<iostream>
#include<cstring>
using namespace std;
int main() {
 int len,z;	//len是指串长,z起一个协助判断作用
 char c[1000];
 char a[]="aoyeui";	//设置一个关于需要剔除元素的字符数组
 cin>>c;
 len=strlen(c);
 for(int i=0; i<len; i++) {			//大写转换为小写
  if(c[i]<='Z') c[i]+=32;
 }
 for(int j=0; j<len; j++) {			//判断是否为题目所要求剔除的字母
  z=1;		
  for(int i=0; i<6; i++)
   if(c[j]==a[i]) {
    z=0;
    break;
   }
  if(z==1) cout<<"."<<c[j];		//不是则输出
 }
}

小结:虽然是水题,但起初还是WA了四五次,得到的教训是以后数组可以开大一点。

### Codeforces Problem 976C Solution in Python For solving problem 976C on Codeforces using Python, efficiency becomes a critical factor due to strict time limits aimed at distinguishing between efficient and less efficient solutions[^1]. Given these constraints, it is advisable to focus on optimizing algorithms and choosing appropriate data structures. The provided code snippet offers insight into handling string manipulation problems efficiently by customizing comparison logic for sorting elements based on specific criteria[^2]. However, for addressing problem 976C specifically, which involves determining the winner ('A' or 'B') based on frequency counts within given inputs, one can adapt similar principles of optimization but tailored towards counting occurrences directly as shown below: ```python from collections import Counter def determine_winner(): for _ in range(int(input())): count_map = Counter(input().strip()) result = "A" if count_map['A'] > count_map['B'] else "B" print(result) determine_winner() ``` This approach leverages `Counter` from Python’s built-in `collections` module to quickly tally up instances of 'A' versus 'B'. By iterating over multiple test cases through a loop defined by user input, this method ensures that comparisons are made accurately while maintaining performance standards required under tight computational resources[^3]. To further enhance execution speed when working with Python, consider submitting codes via platforms like PyPy instead of traditional interpreters whenever possible since they offer better runtime efficiencies especially important during competitive programming contests where milliseconds matter significantly.
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