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 <bits/stdc++.h>
#include <cctype>
using namespace std;
int main() {
int a[100]={0};
char ch;
while(ch=cin.get(),ch!='\n'){
ch=tolower(ch);
a[ch-'0']++;
}
ch=tolower(getchar());
cout<<a[ch-'0'];
return 0;
}
// 64 位输出请用 printf("%lld")
数组哈希
