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QOJ
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| #755980 | #7781. Sheep Eat Wolves | Star_s# | WA | 0ms | 3840kb | C++14 | 1.1kb | 2024-11-16 18:36:58 | 2024-11-16 18:36:58 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
int sheep, wolf, n, k;
bool vis[105][105][2];
int bfs(int x, int y)
{
queue<pair<pair<int, int>, int> > q;
q.push({{x, y}, 0});
vis[x][y][1] = true;
while (q.size())
{
pair<int, int> now = q.front().first;
int cnt = q.front().second;
q.pop();
for (int i = 0; i <= min(n, now.first); i++)
{
for (int j = 0; j + i <= n && j <= now.second; j++)
{
int s = now.first - i, w = now.second - j;
if ((s != 0 && w - s > k) || vis[s][w][0])
continue;
vis[s][w][0] = true;
if (s == 0)
{
return cnt + 1;
}
for (int ii = 0; ii <= min(n, sheep - s); ii++)
{
for (int jj = 0; jj + ii <= n && jj <= wolf - w; jj++)
{
int ss = (sheep - s) - ii, ww = (wolf - w) - jj;
if ((ss != 0 && ww - ss > k) || vis[(sheep - ss)][wolf - ww][1])
continue;
vis[ss][ww][1] = true;
q.push({{(sheep - ss), wolf - ww}, cnt + 2});
}
}
}
}
}
return -1;
}
int main()
{
cin >> sheep >> wolf >> n >> k;
cout << bfs(sheep, wolf) << endl;
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3600kb
input:
4 4 3 1
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3572kb
input:
3 5 2 0
output:
5
result:
ok 1 number(s): "5"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3536kb
input:
2 5 1 1
output:
-1
result:
ok 1 number(s): "-1"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3512kb
input:
1 1 1 0
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 0ms
memory: 3580kb
input:
3 3 1 1
output:
7
result:
ok 1 number(s): "7"
Test #6:
score: 0
Accepted
time: 0ms
memory: 3548kb
input:
3 3 2 1
output:
3
result:
ok 1 number(s): "3"
Test #7:
score: 0
Accepted
time: 0ms
memory: 3840kb
input:
10 9 1 10
output:
19
result:
ok 1 number(s): "19"
Test #8:
score: -100
Wrong Answer
time: 0ms
memory: 3604kb
input:
15 20 2 5
output:
-1
result:
wrong answer 1st numbers differ - expected: '27', found: '-1'