题解 | #计算某字符出现次数#
计算某字符出现次数
https://www.nowcoder.com/practice/a35ce98431874e3a820dbe4b2d0508b1
// HJ2 计算某字符出现次数.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。 // #include <iostream> #include<bits/stdc++.h> using namespace std; class CharTimes { public: void Times(string& str, string& s); }; void CharTimes::Times(string& str, string& s) { for (int i = 0; i < str.size(); i++) { if (islower(str[i])) { str[i] = toupper(str[i]); } } if (islower(s[0])) s[0] = toupper(s[0]); int ans = 0; for (auto c : str) { if (s[0] == c) ans++; } cout << ans << endl; } int main() { CharTimes a; string str, s; getline(cin, str); cin >> s; a.Times(str, s); return 0; }