60求调

huyike_2012 @ 2024-09-23 16:41:07

#include<bits/stdc++.h>
using namespace std;
int main()
{
    long long a[55];
    int n;
    cin >> n;
    a[1] = 1;
    a[2] = 2;
    for (int i = 3; i <= n ; i ++ )
        {
        a[i] = a[i - 1] + a[i - 2] ;
    }
    cout << a[n] << endl;
    return 0;
}

by HEzzz @ 2024-09-23 16:50:43

要高精度哇

by IAKIOI___ @ 2024-09-23 20:18:02

@huyike_2012

#include <bits/stdc++.h>
using namespace std;
int n, len = 1, a[5005][5005];
void work(int x)
{
    int i;
    for (i = 1; i <= len; i++)
    {
        a[x][i] = a[x - 1][i] + a[x - 2][i];
    }
    for (i = 1; i <= len; i++)
    {
        if (a[x][i] >= 10)
        {
            a[x][i + 1] += a[x][i] / 10;
            a[x][i] %= 10;
            if (a[x][len + 1] > 0) len++;
        }
    }
}
int main()
{
    int i;
    cin >> n;
    a[1][1] = 1, a[2][1] = 2;
    for (i = 3; i <= n; i++)
    {
        work(i);
    }
    for (i = len; i >= 1; i--)
    {
        cout << a[n][i];
    }
    return 0;
}

by huyike_2012 @ 2024-09-24 19:50:03

@HEzzz @IAKIOI___ thx已AC