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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
#186602#4. 爬楼梯AndyLuo1001ms1196kbC++11323b2023-10-01 10:12:192023-10-01 10:12:21

answer

#include <bits/stdc++.h>
using namespace std;
int main() {

	long long a = 1,b = 1,n;
	cin >> n;
	n++;
	if (n < 3)
	{
		cout << 1 << endl;
		return 0;
	}
	n -= 2;
	if (n % 2 != 0) 
	{
		b++;
		n--;
	}
	for (int i = 1;i <= n;i += 2)
	{
		a = a + b;
		b = b + a;
	}
	cout << b << endl;
	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: 1192kb

input:

36

output:

24157817

result:

ok 1 number(s): "24157817"

Test #2:

score: 10
Accepted
time: 0ms
memory: 1196kb

input:

30

output:

1346269

result:

ok 1 number(s): "1346269"

Test #3:

score: 10
Accepted
time: 0ms
memory: 1192kb

input:

29

output:

832040

result:

ok 1 number(s): "832040"

Test #4:

score: 10
Accepted
time: 0ms
memory: 1192kb

input:

21

output:

17711

result:

ok 1 number(s): "17711"

Test #5:

score: 10
Accepted
time: 0ms
memory: 1196kb

input:

16

output:

1597

result:

ok 1 number(s): "1597"

Test #6:

score: 10
Accepted
time: 1ms
memory: 1196kb

input:

12

output:

233

result:

ok 1 number(s): "233"

Test #7:

score: 10
Accepted
time: 0ms
memory: 1192kb

input:

9

output:

55

result:

ok 1 number(s): "55"

Test #8:

score: 10
Accepted
time: 0ms
memory: 1196kb

input:

5

output:

8

result:

ok 1 number(s): "8"

Test #9:

score: 10
Accepted
time: 0ms
memory: 1196kb

input:

4

output:

5

result:

ok 1 number(s): "5"

Test #10:

score: 10
Accepted
time: 0ms
memory: 1196kb

input:

1

output:

1

result:

ok 1 number(s): "1"