题解 | #字符个数统计#
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
#include<iostream>
#include<string>
#include<set>
using namespace std;
int main(){
string strTmp ;
getline(cin, strTmp);
int szChar[128] = {0};
for(char c: strTmp)
{
szChar[c] ++;
}
int nCount = 0;
for(int n: szChar)
{
if(n>0)
{
nCount ++;
}
}
printf("%d", nCount);
}
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