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牛牛学数列2

include include using namespace std;int main(){ int n,i; double a=0; scanf("%d",&n); for(i=1;i<=n;i++) a+=1/(double)i; pr...

2020-02-21

0 523

求平均值

include using namespace std;int main(){ double c; int a,b,d; cin>>a>>b>>d; c=(double)(a+b+d)/3; printf("%.6f",c); ...

2020-02-19

0 540

数字反转之-三位数

include using namespace std;int main(){ int a,c,d,e,f; cin>>a; c=a/100; d=(a-100*c)/10; e=a%10; cout<<e<<d<<...

2020-02-19

0 574

输入一个整数a, 求个位数

include using namespace std;int main(){ int a,c; cin>>a; if(a>=10)c=a%10; else c=a; cout<<c; return 0;}

2020-02-19

0 688