CE求解

P1255 数楼梯

xiaobeichen @ 2024-09-13 13:30:51

#include<bits/stdc++.h>
#define LL long long
using namespace std;
const int N=1e7+5;
int a[N]{0,1,2,3};
int main(){
    int n;
    cin>>n;
    for(int i=4;i<=n;i++){
        a[i]=a[i-1]+a[i-2];
    }
    cout<<a[n];
    return 0;
}  

by ___define___ @ 2024-09-13 13:36:42

@xiaobeichen a[N]后面加个=


by xiaobeichen @ 2024-09-13 13:44:46

@define_sb_114514 谢谢


by xiaobeichen @ 2024-09-13 13:46:27

@define_sb_114514 还是不行QwQ\kk


by liruizhou_lihui @ 2024-09-13 13:52:59

@xiaobeichen 哥们这题高精度啊你编译成功也过不了


by Fess @ 2024-09-13 13:53:25


by ___define___ @ 2024-09-13 13:55:45

@xiaobeichen

#include<bits/stdc++.h>
#define LL long long int
using namespace std;
const int N=1e7+5;
LL a[N];
int main(){
    int n;
    a[1]=1,a[2]=2,a[3]=3;
    cin>>n;
    for(int i=4;i<=n;i++){
        a[i]=a[i-1]+a[i-2];
    }
    cout<<a[n];
    return 0;
} 

60分,要用高精或者你可以用python,像我一样


by xiaobeichen @ 2024-09-13 13:59:28

@define_sb_114514 谢


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