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
#include <iostream> #include <string> #include <cctype> #include <algorithm> using namespace std; int ch_of_cnt(const string& str,const char& ch) { int cnt = 0; for (char c : str) { if (isalpha(c) && tolower(c) ==tolower(ch)) { cnt++; } else if (c == ch) { cnt++; } } return cnt; } int main() { string str1,str2 ; getline(cin,str1); getline(cin,str2); char ch = str2.front(); cout << ch_of_cnt(str1,ch) <<endl; } // 64 位输出请用 printf("%lld")