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 |
|---|---|---|---|---|---|---|---|---|---|
| #140409 | #4. 爬楼梯 | CCF_NOI | 100 | 90ms | 1128kb | C++ | 569b | 2021-10-17 11:42:29 | 2021-10-17 11:42:30 |
answer
#include<bits/stdc++.h>
using namespace std;
__int128 N(__int128 n){
if(n==0)return 0;
else if(n==1)return 1;
else if(n==2)return 2;
else return N(n-1)+N(n-2);
}
void read(__int128 &x) {
__int128 f=1;
char c=getchar();
for(x=0; c>'9'||c<'0'; c=getchar())
if(c=='-')f=~f+1;
for(x=0; c<='9'&&c>='0'; c=getchar())
x=(x<<3)+(x<<1)+(c^48);
x*=f;
}
void print(__int128 x) {
if(x<0)putchar('-'),print(-x);
if(x<10)putchar(x+'0');
if(x>=10)print(x/10),putchar(x%10+'0');
}
int main(){
__int128 n;
read(n);
print(N(n));
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: 83ms
memory: 1128kb
input:
36
output:
24157817
result:
ok 1 number(s): "24157817"
Test #2:
score: 10
Accepted
time: 5ms
memory: 1128kb
input:
30
output:
1346269
result:
ok 1 number(s): "1346269"
Test #3:
score: 10
Accepted
time: 2ms
memory: 1128kb
input:
29
output:
832040
result:
ok 1 number(s): "832040"
Test #4:
score: 10
Accepted
time: 0ms
memory: 1124kb
input:
21
output:
17711
result:
ok 1 number(s): "17711"
Test #5:
score: 10
Accepted
time: 0ms
memory: 1128kb
input:
16
output:
1597
result:
ok 1 number(s): "1597"
Test #6:
score: 10
Accepted
time: 0ms
memory: 1128kb
input:
12
output:
233
result:
ok 1 number(s): "233"
Test #7:
score: 10
Accepted
time: 0ms
memory: 1128kb
input:
9
output:
55
result:
ok 1 number(s): "55"
Test #8:
score: 10
Accepted
time: 0ms
memory: 1120kb
input:
5
output:
8
result:
ok 1 number(s): "8"
Test #9:
score: 10
Accepted
time: 0ms
memory: 1120kb
input:
4
output:
5
result:
ok 1 number(s): "5"
Test #10:
score: 10
Accepted
time: 0ms
memory: 1120kb
input:
1
output:
1
result:
ok 1 number(s): "1"
