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> using namespace std; int main() { string A; char a; getline(cin,A); cin>>a; int temp=0; int X=0; if(a>='a'&&a<='z')X=1; if(a>='A'&&a<='Z')X=2; for(int i=0;i<A.size();i++){ if(X==0){if(A[i]==a)temp++;} if(X==1){if(A[i]==a)temp++;if(A[i]+32==a)temp++;} if(X==2){if(A[i]==a)temp++;if(A[i]-32==a)temp++;} } cout<<temp<<endl; return 0; } // 64 位输出请用 printf("%lld")