#include<bits/stdc++.h>
using namespace std;
int a[20005],b[20005],c[20005];
int main(){
//a[i]=a[i-1]+a[i-2];
int n;
cin>>n;
a[0]=1;//加数1
b[0]=2;//加数2
int A=1;//数位长度
int jw=0;//进位
for(int i=3;i<=n;i++){//从第3个开始算
jw=0;
for(int j=0;j<A;j++){//做加法
c[j]=a[j]+b[j]+jw;
jw=c[j]/10;//大于等于10有进位
c[j]=c[j]%10;//保留个位
}
if(jw==1){//数位变多了
c[A]=1;
A++;//记录数位增加了
}
for(int k=0;k<A;k++){
a[k]=b[k];
b[k]=c[k];
}
}
if(n==1)
cout<<1;
else if(n==2)
cout<<2;
else {
for(int i=A-1;i>=0;i--)
cout<<c[i];
}
return 0;
}
RunID | User | Nick Name | Problem ID | Result | Memory | Time | Language | Code Length | Submit Time |
76615 | jzlb_trz | 诗剑行 | D | Accepted | 2256 KiB | 0 ms | C++ | 626 bytes | 2023-03-26 14:36:04 |
76596 | jzlb_trz | 诗剑行 | A | Accepted | 2020 KiB | 0 ms | C++ | 312 bytes | 2023-03-26 14:19:51 |
76369 | jzlb_trz | 诗剑行 | G | Accepted | 2024 KiB | 0 ms | C++ | 333 bytes | 2023-03-24 20:21:05 |
76364 | jzlb_trz | 诗剑行 | Accepted | 2412 KiB | 0 ms | C++ | 254 bytes | 2023-03-24 19:52:03 | |
76363 | jzlb_trz | 诗剑行 | Time Limit Exceed | 2412 KiB | 1984 ms | C++ | 303 bytes | 2023-03-24 19:42:45 | |
75869 | jzlb_trz | 诗剑行 | Accepted | 9836 KiB | 0 ms | C++ | 369 bytes | 2023-03-20 18:53:28 | |
75866 | jzlb_trz | 诗剑行 | D | Wrong Answer | 2020 KiB | 0 ms | C++ | 313 bytes | 2023-03-20 18:41:56 |
75864 | jzlb_trz | 诗剑行 | D | Wrong Answer | 2020 KiB | 0 ms | C++ | 289 bytes | 2023-03-20 18:27:50 |
75863 | jzlb_trz | 诗剑行 | D | Wrong Answer | 2020 KiB | 0 ms | C++ | 289 bytes | 2023-03-20 18:27:31 |
75862 | jzlb_trz | 诗剑行 | D | Wrong Answer | 2020 KiB | 0 ms | C++ | 283 bytes | 2023-03-20 18:26:20 |
75861 | jzlb_trz | 诗剑行 | C | Accepted | 9836 KiB | 576 ms | C++ | 422 bytes | 2023-03-20 18:18:19 |
75860 | jzlb_trz | 诗剑行 | C | Wrong Answer | 5968 KiB | 656 ms | C++ | 430 bytes | 2023-03-20 18:14:56 |
75859 | jzlb_trz | 诗剑行 | C | Wrong Answer | 5968 KiB | 632 ms | C++ | 430 bytes | 2023-03-20 18:11:57 |
75856 | jzlb_trz | 诗剑行 | B | Accepted | 6320 KiB | 4 ms | C++ | 425 bytes | 2023-03-20 17:42:43 |
75740 | jzlb_trz | 诗剑行 | A | Accepted | 2020 KiB | 0 ms | C++ | 312 bytes | 2023-03-20 09:08:42 |