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22 lines
425 B
22 lines
425 B
#include<bits/stdc++.h>
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using namespace std;
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int main() {
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string s;
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int i=0,count,sum;
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while(getline(cin,s)) {
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int count=s.length();
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sum=0;
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for(i=count-1; i>=0; i--) { //从十六进制个位开始，每位都转换成十进制
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if(s[i]>='0'&&s[i]<='9') { //数字字符的转换
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sum+=(s[i]-48)*pow(16,count-i-1);
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} else if(s[i]>='A'&&s[i]<='F') { //字母字符的转换
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sum+=(s[i]-55)*pow(16,count-i-1);
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}
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}
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cout<<sum;
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}
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}
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