19 lines
318 B
C++
19 lines
318 B
C++
#include<iostream>
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#include<cmath>
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using namespace std;
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int main()
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{
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int g;
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while(true)
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{
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cin>>g;
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if(!(g>30))
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{
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if(g<=10) cout<<"需要 "<<0.8*g<<"元"<<endl;
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if(g>10&&g<=20) cout<<"需要 "<<0.75*g<<"元"<<endl;
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if(g>20&&g<=30) cout<<"需要 "<<0.7*g<<"元"<<endl;
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}
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else cout<<"无法邮寄！"<<endl;
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}
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}
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