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更新了许多
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19
小玉家的电费.cpp
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19
小玉家的电费.cpp
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#include <bits/stdc++.h>
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using namespace std;
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int main(){
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int a;
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cin >>a;
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if(a<=150){
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cout <<fixed<<setprecision(1)<<a*0.4463;
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return 0;
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}
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if(a>150 && a<=400){
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cout <<fixed<<setprecision(1)<<150*0.4463+(a-150)*0.4663;
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return 0;
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}
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if(a>400){
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cout <<fixed<<setprecision(1)<<150*0.4463+(400-150)*0.4663+(a-400)*0.5663;
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return 0;
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}
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return 0;
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}
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