NOI.AC
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #194811 | #4. 爬楼梯 | Happysheep | 100 | 1ms | 1336kb | C++ | 793b | 2023-10-18 08:25:51 | 2023-10-18 08:25:52 |
answer
#include<cstdio>
#include<algorithm>
#include<iostream>
#include<cstring>
using namespace std;
int n,len=1,f[5003][5003];//f[k][i]--第k阶台阶所对应的走法数
void hp(int k)//高精度加法，k来存阶数
{
int i;
for(i=1;i<=len;i++)
f[k][i]=f[k-1][i]+f[k-2][i];//套用公式
for(i=1;i<=len;i++) //进位
if(f[k][i]>=10)
{
f[k][i+1]+=f[k][i]/10;
f[k][i]=f[k][i]%10;
if(f[k][len+1])len++;
}
}
int main()
{
int i;
scanf("%d",&n);
f[1][1]=1; f[2][1]=2; //初始化
for(i=3;i<=n;i++) //从3开始避免越界
hp(i);
for(i=len;i>=1;i--) //逆序输出
printf("%d",f[n][i]);
return 0;
}
详细
小提示：点击横条可展开更详细的信息
Test #1:
score: 10
Accepted
time: 0ms
memory: 1336kb
input:
36
output:
24157817
result:
ok 1 number(s): "24157817"
Test #2:
score: 10
Accepted
time: 0ms
memory: 1312kb
input:
30
output:
1346269
result:
ok 1 number(s): "1346269"
Test #3:
score: 10
Accepted
time: 0ms
memory: 1304kb
input:
29
output:
832040
result:
ok 1 number(s): "832040"
Test #4:
score: 10
Accepted
time: 0ms
memory: 1272kb
input:
21
output:
17711
result:
ok 1 number(s): "17711"
Test #5:
score: 10
Accepted
time: 0ms
memory: 1252kb
input:
16
output:
1597
result:
ok 1 number(s): "1597"
Test #6:
score: 10
Accepted
time: 0ms
memory: 1240kb
input:
12
output:
233
result:
ok 1 number(s): "233"
Test #7:
score: 10
Accepted
time: 0ms
memory: 1224kb
input:
9
output:
55
result:
ok 1 number(s): "55"
Test #8:
score: 10
Accepted
time: 0ms
memory: 1208kb
input:
5
output:
8
result:
ok 1 number(s): "8"
Test #9:
score: 10
Accepted
time: 1ms
memory: 1204kb
input:
4
output:
5
result:
ok 1 number(s): "5"
Test #10:
score: 10
Accepted
time: 0ms
memory: 1200kb
input:
1
output:
1
result:
ok 1 number(s): "1"
