[华为OJ--C++]010-字符个数统计

#include<iostream>
#include<string>
#include<vector>
using namespace std;

//************************************************
// * Author: 赵志乾
// * Date: 2017-2-19
// * Declaration: All Rigths Reserved !!!
//***********************************************/

int main()
{
string instr;
getline(cin,instr);

vector<int>state(128,0);
int ret=0;
for(int i=0;i<instr.length();i++)
{
if(instr[i]>=0&&instr[i]<=127&&state[instr[i]]==0)
{
ret++;
state[instr[i]]=1;
}
}

cout<<ret<<endl;
return 0;
}