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 |
|---|---|---|---|---|---|---|---|---|---|
| #211992 | #3815. 种树 | yangyiming | 100 | 1ms | 1284kb | C++ | 1019b | 2024-10-13 09:42:20 | 2024-10-13 12:54:26 |
answer
#include<bits/stdc++.h>
using namespace std;
int flage[20][20];
map<string , int> mp;
long long ans = 0;
int n , m , k;
void dfs(int dep , int x , int y , string s)
{
if (dep == k + 1)
{
if (mp[s] == 0)
{
ans++;
// for (int i = 1;i <= n;i++)
// {
// for (int j = 1;j <= m;j++)
// {
// cout << flage[i][j];
// }
// cout << "\n";
// }
//cout << "\n";
mp[s] = 1;
}
return ;
}
if (x > n or y > m)
{
return ;
}
if (flage[x-1][y] == 1 or flage[x][y-1] == 1 or flage[x][y+1] == 1 or flage[x+1][y] == 1 or flage[x][y] == 1)
{
flage[x][y] = 0;
string tt = s + "0";
if (m == y)dfs(dep,x+1,1,tt);
else dfs(dep,x,y+1,tt);
}
else
{
flage[x][y] = 1;
string t = s + "1";
if (m == y)dfs(dep+1,x+1,1,t);
else dfs(dep+1,x,y+1,t);
string tt = s + "0";
flage[x][y] = 0;
if (m == y)dfs(dep,x+1,1,tt);
else dfs(dep,x,y+1,tt);
}
}
int main()
{
cin >> n >> m >> k;
dfs(1,1,1,"");
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: 1248kb
input:
2 2 1
output:
4
result:
ok 1 number(s): "4"
Test #2:
score: 10
Accepted
time: 0ms
memory: 1248kb
input:
2 3 2
output:
8
result:
ok 1 number(s): "8"
Test #3:
score: 10
Accepted
time: 0ms
memory: 1264kb
input:
4 4 2
output:
96
result:
ok 1 number(s): "96"
Test #4:
score: 10
Accepted
time: 0ms
memory: 1284kb
input:
4 4 5
output:
304
result:
ok 1 number(s): "304"
Test #5:
score: 10
Accepted
time: 0ms
memory: 1260kb
input:
3 4 3
output:
84
result:
ok 1 number(s): "84"
Test #6:
score: 10
Accepted
time: 0ms
memory: 1260kb
input:
3 5 2
output:
83
result:
ok 1 number(s): "83"
Test #7:
score: 10
Accepted
time: 0ms
memory: 1276kb
input:
3 5 3
output:
215
result:
ok 1 number(s): "215"
Test #8:
score: 10
Accepted
time: 0ms
memory: 1284kb
input:
3 5 4
output:
276
result:
ok 1 number(s): "276"
Test #9:
score: 10
Accepted
time: 0ms
memory: 1272kb
input:
3 5 5
output:
174
result:
ok 1 number(s): "174"
Test #10:
score: 10
Accepted
time: 1ms
memory: 1252kb
input:
4 3 5
output:
18
result:
ok 1 number(s): "18"
Extra Test:
score: 0
Extra Test Passed
