計算汽車省油，用英里每加侖比較，允許重復比較

//mile?for?gallon?汽車省油 #include<iostream>const?double?GALLON?=?0.264179;?double?milepergallon(double?kilo,double?mile);int?main() {using?namespace?std;double?kilo[2],mile[2],milebygallon[2];char?ans;do{cout<<"Enter?the?kilo?and?the?mile?of?number?first:\n";cin>>kilo[0]>>mile[0];cout<<"Enter?the?kilo?and?the?mile?of?number?second:\n";cin>>kilo[1]>>mile[1];milebygallon[0]?=?milepergallon(kilo[0],mile[0]);milebygallon[1]?=?milepergallon(kilo[1],mile[1]);cout<<"The?first?result?is?"<<milebygallon[0]<<"?mile/gallon.\n";cout<<"The?second?result?is?"<<milebygallon[1]<<"?mile/gallon.\n";if(milebygallon[0]?>?milebygallon[1])cout<<"The?first?car?fuel?saving!"<<endl;else?if(milebygallon[0]?<?milebygallon[1])cout<<"The?second?car?fuel?saving!"<<endl;elsecout<<"The?two?cat?are?same?saving?oil!"<<endl;cout<<"Do?you?want?again?";cin>>ans;}while('y'?==?ans?||?'Y'?==ans);return?0; }double?milepergallon(double?kilo,double?mile) {double?gallon;gallon?=?kilo?*?GALLON;return?(mile?/?gallon); }

結果：

Enter?the?kilo?and?the?mile?of?number?first: 1?0.264179 Enter?the?kilo?and?the?mile?of?number?second: 1?0.264179 The?first?result?is?1?mile/gallon. The?second?result?is?1?mile/gallon. The?two?cat?are?same?saving?oil! Do?you?want?again?y Enter?the?kilo?and?the?mile?of?number?first: 1?1 Enter?the?kilo?and?the?mile?of?number?second: 10?2 The?first?result?is?3.78531?mile/gallon. The?second?result?is?0.757062?mile/gallon. The?first?car?fuel?saving! Do?you?want?again?y Enter?the?kilo?and?the?mile?of?number?first: 1?1 Enter?the?kilo?and?the?mile?of?number?second: 2?2? The?first?result?is?3.78531?mile/gallon. The?second?result?is?3.78531?mile/gallon. The?two?cat?are?same?saving?oil! Do?you?want?again?

轉載于:https://blog.51cto.com/9320314/1546778

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