stoi转换函数
进制转换
http://www.nowcoder.com/questionTerminal/8f3df50d2b9043208c5eed283d1d4da6
#include<iostream>
#include<string>
using namespace std;
int main(){
string line;
while(getline(cin,line)){
cout << stoi(line,0,16) << endl;
}
}
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