题解 | #进制转换#
进制转换
https://www.nowcoder.com/practice/8f3df50d2b9043208c5eed283d1d4da6
#include <iostream>
using namespace std;
int main() {
char ch;
int result = 0;
cin>>ch;
cin>>ch;
while (cin>>ch){
result *= 16;
if (ch >= '0' && ch <='9')
result += ch -'0';
else
result += ch - 'A' + 10;
}
cout<<result;
}
// 64 位输出请用 printf("%lld")
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