input
首先是一个正整数n,表示有n组数据。每一组数据中由4个整形数组成,分别表示第一个分数的分子和分母和第二个分数的分子和分母。
output
两个加减乘除的结果
sampleinput
3
2 -4 3 5
1 2 3 4
4 3 2 -1
sampleoutput
1/10 11/10 -3/10 -5/6
5/4 -1/4 3/8 2/3
-2/3 10/3 -8/3 -2/3
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asd8532
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#include<iostream> #include<cmath> using namespace std; class fraction{ public: int above; int below; void reduction(); void makeCommond(fraction&); public: fraction(int a=0,int b=1){ above=a;below=b; } fraction add(fraction); fraction sub(fraction); fraction mul(fraction); fraction div(fraction); void display(); }; void fraction::reduction(){ int a,b,temp; if(below<0){ above=-above; below=-below; } a=abs(above); b=abs(below); while(a%b){ temp=a; a=b; b=temp%b; } above/=b; below/=b; } void fraction::makeCommond(fraction& b){ int temp; reduction(); b.reduction(); above*=b.below; b.above*=below; temp=below*b.below; below=b.below=temp; } fraction fraction::add(fraction b){ fraction temp; makeCommond(b); temp.above=above+b.above; temp.below=below; temp.reduction(); return temp; } fraction fraction::sub(fraction b){ fraction temp; makeCommond(b); temp.above=above-b.above; temp.below=below; temp.reduction(); return temp; } fraction fraction::mul(fraction b){ fraction temp; temp.above=above*b.above; temp.below=below*b.below; temp.reduction(); return temp; } fraction fraction::div(fraction b){ fraction temp; if(b.above==0){ cout<<"零不能作除数!"<<endl; exit(1); } temp.above=above*b.below; temp.below=below*b.above; temp.reduction(); return temp; } void fraction::display(){ reduction(); cout<<above<<"/"<<below<<" "; } int main(){ int n; cin>>n; while(n>=1){ fraction f1,f2; cin>>f1.above>>f1.below>>f2.above>>f2.below; fraction f3=f1.add(f2); fraction f4=f1.sub(f2); fraction f5=f1.mul(f2); fraction f6=f1.div(f2); f3.display(); f4.display(); f5.display(); f6.display(); cout<<endl; } return 0; }
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