1 条题解
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0
#include<bits/stdc++.h> using namespace std; #define ll long long #define db double ll T=1,n,a=1,b=1,def,fed; void solve(){ cin>>n; for(int i=2;i<=n;i++){ a=a*(ll)i+b*(ll)1; b*=(ll)i; ll gcdd=__gcd(a,b); a/=gcdd,b/=gcdd; } a*=n; ll gcdd=__gcd(a,b); a/=gcdd,b/=gcdd; if(b==1){ cout<<a; return ; } ll zs=a/b,kkk=zs,kkkk=b; a-=zs*b; while(kkk){ def++; kkk/=10; } while(kkkk){ fed++; kkkk/=10; } for(int i=0;i<=def;i++) cout<<" "; cout<<a<<endl; cout<<zs<<" "; for(int i=1;i<=fed;i++) cout<<"-"; cout<<endl; for(int i=0;i<=def;i++) cout<<" "; cout<<b; } int main(){ // freopen(".in","r",stdin); // freopen(".out","w",stdout); while(T--){ solve(); } return 0; }
- 1
信息
- ID
- 10496
- 时间
- 1000ms
- 内存
- 256MiB
- 难度
- 10
- 标签
- 递交数
- 1
- 已通过
- 1
- 上传者