题解 | #进制转换#
进制转换
https://www.nowcoder.com/practice/8f3df50d2b9043208c5eed283d1d4da6
#include <ios>
#include <iostream>
#include <string>
#include <vector>
using namespace std;
int main() {
string s;
string s2;
cin >> s;
int cnt = 0;
int flag=0;
for(auto s_item : s){
if(cnt != 2 && flag == 0){
cnt++;
continue;
}
else if(cnt == 2){
flag=1;
s2.push_back(s_item);
}
}
int decimal_num = stoi(s2,nullptr,16);//stoi()位于std标准库
cout<<decimal_num<<endl;
}
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