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 |
|---|---|---|---|---|---|---|---|---|---|
| #212043 | #3815. 种树 | ylq0221 | 100 | 3ms | 1200kb | C++11 | 448b | 2024-10-13 10:36:59 | 2024-10-13 12:54:59 |
answer
#include <bits/stdc++.h>
using namespace std;
int ans=0,vis[16][16];
int n,m,k;
void dfs(int cnt){
if(cnt==k){
ans++;
return;
}
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(vis[i][j]==0&&vis[i-1][j]==0&&vis[i+1][j]==0&&vis[i][j-1]==0&&vis[i][j+1]==0){
vis[i][j]=1;
dfs(cnt+1);
vis[i][j]=0;
}
}
}
}
int main(){
cin>>n>>m>>k;
dfs(0);
for(int i=1;i<=k;i++) ans/=i;
cout<<ans;
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: 1196kb
input:
2 2 1
output:
4
result:
ok 1 number(s): "4"
Test #2:
score: 10
Accepted
time: 0ms
memory: 1200kb
input:
2 3 2
output:
8
result:
ok 1 number(s): "8"
Test #3:
score: 10
Accepted
time: 0ms
memory: 1196kb
input:
4 4 2
output:
96
result:
ok 1 number(s): "96"
Test #4:
score: 10
Accepted
time: 2ms
memory: 1200kb
input:
4 4 5
output:
304
result:
ok 1 number(s): "304"
Test #5:
score: 10
Accepted
time: 0ms
memory: 1196kb
input:
3 4 3
output:
84
result:
ok 1 number(s): "84"
Test #6:
score: 10
Accepted
time: 0ms
memory: 1200kb
input:
3 5 2
output:
83
result:
ok 1 number(s): "83"
Test #7:
score: 10
Accepted
time: 0ms
memory: 1200kb
input:
3 5 3
output:
215
result:
ok 1 number(s): "215"
Test #8:
score: 10
Accepted
time: 0ms
memory: 1200kb
input:
3 5 4
output:
276
result:
ok 1 number(s): "276"
Test #9:
score: 10
Accepted
time: 1ms
memory: 1200kb
input:
3 5 5
output:
174
result:
ok 1 number(s): "174"
Test #10:
score: 10
Accepted
time: 0ms
memory: 1200kb
input:
4 3 5
output:
18
result:
ok 1 number(s): "18"
Extra Test:
score: 0
Extra Test Passed
