我的三个点超时……第五个点对了
by 飞奔的蜗牛 @ 2017-06-08 20:03:24
你没必要搞一个数组啊，太占空间了，就弄三个变量，“轮换就行了”
by 飞奔的蜗牛 @ 2017-06-08 20:04:38
```cpp
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <algorithm>
using namespace std;
long long k=2147483648,a,b,c;
int i,n;
int zs (int x)
{
if (x==2) return 1;
for (int i=2;i*i<=x;i++)
if (x%i==0) return 0;
return 1;
}
int main()
{
cin>>n;
if (n==1) {
cout<<"1";
return 0;
}
a=b=1;
for (i=3;i<=n;i++) {
c=a+b; c%=k;
a=b; b=c;
}
k=2;
cout<<c<<"=";
while (1) {
if (c%k==0 && c/k!=1) {
cout<<k<<"*";
c/=k;
}
if (c%k==0 && c/k==1) {
cout<<k; return 0;
}
if (c%k!=0) break;
}
k=3;
while (1) {
if (!zs(k)) {k+=2; continue;}
if (c%k==0 && c/k!=1) {
cout<<k<<"*";
c/=k;
}
if (c%k==0 && c/k==1) {
cout<<k; return 0;
}
if (c%k!=0) k+=2;
}
return 0;
}
```
by 飞奔的蜗牛 @ 2017-06-08 20:05:40