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 |
|---|---|---|---|---|---|---|---|---|---|
| #205618 | #4. 爬楼梯 | XiaoWang | 100 | 1ms | 1252kb | C++ | 282b | 2024-07-18 19:39:10 | 2024-07-18 19:39:12 |
answer
#include<bits/stdc++.h>
#pragma GCC optimize(2)
using namespace std;
int n,a[3]={1,1,2};
int main()
{
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin>>n;
for(int i=2;i<=n;i++) a[2]=a[1]+a[0],a[0]=a[1],a[1]=a[2];
cout<<a[(n<=2?n:2)]<<"\n";
return 0;
}
详细
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Test #1:
score: 10
Accepted
time: 0ms
memory: 1252kb
input:
36
output:
24157817
result:
ok 1 number(s): "24157817"
Test #2:
score: 10
Accepted
time: 0ms
memory: 1252kb
input:
30
output:
1346269
result:
ok 1 number(s): "1346269"
Test #3:
score: 10
Accepted
time: 0ms
memory: 1252kb
input:
29
output:
832040
result:
ok 1 number(s): "832040"
Test #4:
score: 10
Accepted
time: 0ms
memory: 1248kb
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: 1252kb
input:
12
output:
233
result:
ok 1 number(s): "233"
Test #7:
score: 10
Accepted
time: 0ms
memory: 1252kb
input:
9
output:
55
result:
ok 1 number(s): "55"
Test #8:
score: 10
Accepted
time: 1ms
memory: 1252kb
input:
5
output:
8
result:
ok 1 number(s): "8"
Test #9:
score: 10
Accepted
time: 0ms
memory: 1248kb
input:
4
output:
5
result:
ok 1 number(s): "5"
Test #10:
score: 10
Accepted
time: 0ms
memory: 1252kb
input:
1
output:
1
result:
ok 1 number(s): "1"
