QOJ.ac
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 |
|---|---|---|---|---|---|---|---|---|---|
| #543160 | #7781. Sheep Eat Wolves | MaxDYF | AC ✓ | 193ms | 71652kb | C++14 | 2.5kb | 2024-09-01 14:34:11 | 2024-09-01 14:34:12 |
Judging History
answer
// #pragma GCC optimize("Ofast,no-stack-protector")
#include <bits/stdc++.h>
using namespace std;
const int N = 200;
const int inf = 1 << 30;
const long long llinf = 1ll << 60;
const double PI = acos(-1);
#define lowbit(x) (x & -x)
typedef long long ll;
typedef double db;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<db, db> pdd;
typedef pair<ll, int> pli;
int dis[N][N][2];
bool vis[N][N][2];
int x, y, p, q;
struct Node
{
int rx, ry;
bool side;
};
bool check(int rx, int ry, bool side)
{
int lx = x - rx, ly = y - ry;
if (side == 0)
return rx == 0 || (rx + q >= ry);
else
return lx == 0 || (lx + q >= ly);
}
int bfs()
{
queue<Node> q;
q.push(Node{0, 0, 0});
memset(dis, 0x3f, sizeof dis);
dis[0][0][0] = 0;
int ans = inf;
while (q.empty() == false)
{
auto now = q.front();
q.pop();
if (vis[now.rx][now.ry][now.side])
continue;
vis[now.rx][now.ry][now.side] = 1;
if (now.side == 0)
{
for (int k1 = 0; k1 <= p && now.rx + k1 <= x; k1++)
for (int k2 = 0; k1 + k2 <= p && now.ry + k2 <= y; k2++)
{
auto nxt = Node{now.rx + k1, now.ry + k2, !now.side};
if (!check(nxt.rx, nxt.ry, nxt.side))
continue;
dis[nxt.rx][nxt.ry][nxt.side] = min(dis[nxt.rx][nxt.ry][nxt.side], dis[now.rx][now.ry][now.side] + 1);
if (nxt.rx == x)
ans = min(ans, dis[nxt.rx][nxt.ry][nxt.side]);
else
q.push(nxt);
}
}
else
{
for (int k1 = 0; k1 <= p && now.rx - k1 >= 0; k1++)
for (int k2 = 0; k1 + k2 <= p && now.ry - k2 >= 0; k2++)
{
auto nxt = Node{now.rx - k1, now.ry - k2, !now.side};
if (!check(nxt.rx, nxt.ry, nxt.side))
continue;
dis[nxt.rx][nxt.ry][nxt.side] = min(dis[nxt.rx][nxt.ry][nxt.side], dis[now.rx][now.ry][now.side] + 1);
q.push(nxt);
}
}
}
return ans;
}
void work()
{
cin >> x >> y >> p >> q;
int ans = bfs();
cout << (ans > 100000 ? -1 : ans) << endl;
}
int main()
{
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int t = 1;
while (t-- > 0)
{
work();
}
}
这程序好像有点Bug，我给组数据试试？
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3776kb
input:
4 4 3 1
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 1ms
memory: 3864kb
input:
3 5 2 0
output:
5
result:
ok 1 number(s): "5"
Test #3:
score: 0
Accepted
time: 1ms
memory: 3828kb
input:
2 5 1 1
output:
-1
result:
ok 1 number(s): "-1"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3784kb
input:
1 1 1 0
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 0ms
memory: 3892kb
input:
3 3 1 1
output:
7
result:
ok 1 number(s): "7"
Test #6:
score: 0
Accepted
time: 1ms
memory: 3836kb
input:
3 3 2 1
output:
3
result:
ok 1 number(s): "3"
Test #7:
score: 0
Accepted
time: 1ms
memory: 3872kb
input:
10 9 1 10
output:
19
result:
ok 1 number(s): "19"
Test #8:
score: 0
Accepted
time: 1ms
memory: 3840kb
input:
15 20 2 5
output:
27
result:
ok 1 number(s): "27"
Test #9:
score: 0
Accepted
time: 1ms
memory: 3900kb
input:
18 40 16 7
output:
5
result:
ok 1 number(s): "5"
Test #10:
score: 0
Accepted
time: 1ms
memory: 3900kb
input:
60 60 8 1
output:
27
result:
ok 1 number(s): "27"
Test #11:
score: 0
Accepted
time: 1ms
memory: 3960kb
input:
60 60 8 4
output:
27
result:
ok 1 number(s): "27"
Test #12:
score: 0
Accepted
time: 1ms
memory: 3840kb
input:
60 60 8 8
output:
25
result:
ok 1 number(s): "25"
Test #13:
score: 0
Accepted
time: 2ms
memory: 3992kb
input:
60 60 16 1
output:
13
result:
ok 1 number(s): "13"
Test #14:
score: 0
Accepted
time: 3ms
memory: 4192kb
input:
60 60 16 8
output:
11
result:
ok 1 number(s): "11"
Test #15:
score: 0
Accepted
time: 5ms
memory: 4472kb
input:
60 60 16 16
output:
11
result:
ok 1 number(s): "11"
Test #16:
score: 0
Accepted
time: 3ms
memory: 4696kb
input:
60 60 16 24
output:
9
result:
ok 1 number(s): "9"
Test #17:
score: 0
Accepted
time: 1ms
memory: 3924kb
input:
75 15 1 1
output:
175
result:
ok 1 number(s): "175"
Test #18:
score: 0
Accepted
time: 0ms
memory: 3724kb
input:
50 100 1 0
output:
-1
result:
ok 1 number(s): "-1"
Test #19:
score: 0
Accepted
time: 3ms
memory: 3932kb
input:
100 100 10 10
output:
35
result:
ok 1 number(s): "35"
Test #20:
score: 0
Accepted
time: 1ms
memory: 3844kb
input:
100 100 10 1
output:
37
result:
ok 1 number(s): "37"
Test #21:
score: 0
Accepted
time: 5ms
memory: 4280kb
input:
100 100 10 20
output:
33
result:
ok 1 number(s): "33"
Test #22:
score: 0
Accepted
time: 7ms
memory: 4204kb
input:
100 100 10 30
output:
31
result:
ok 1 number(s): "31"
Test #23:
score: 0
Accepted
time: 11ms
memory: 4812kb
input:
100 100 10 80
output:
21
result:
ok 1 number(s): "21"
Test #24:
score: 0
Accepted
time: 0ms
memory: 3928kb
input:
100 100 1 100
output:
199
result:
ok 1 number(s): "199"
Test #25:
score: 0
Accepted
time: 0ms
memory: 3924kb
input:
100 100 5 0
output:
95
result:
ok 1 number(s): "95"
Test #26:
score: 0
Accepted
time: 8ms
memory: 4792kb
input:
100 100 25 3
output:
13
result:
ok 1 number(s): "13"
Test #27:
score: 0
Accepted
time: 8ms
memory: 5800kb
input:
100 100 30 4
output:
11
result:
ok 1 number(s): "11"
Test #28:
score: 0
Accepted
time: 1ms
memory: 3800kb
input:
95 100 3 3
output:
125
result:
ok 1 number(s): "125"
Test #29:
score: 0
Accepted
time: 32ms
memory: 14324kb
input:
98 99 50 6
output:
5
result:
ok 1 number(s): "5"
Test #30:
score: 0
Accepted
time: 26ms
memory: 10096kb
input:
100 100 45 4
output:
7
result:
ok 1 number(s): "7"
Test #31:
score: 0
Accepted
time: 81ms
memory: 23840kb
input:
100 100 40 39
output:
7
result:
ok 1 number(s): "7"
Test #32:
score: 0
Accepted
time: 68ms
memory: 20992kb
input:
100 100 45 19
output:
7
result:
ok 1 number(s): "7"
Test #33:
score: 0
Accepted
time: 180ms
memory: 71080kb
input:
100 100 49 99
output:
5
result:
ok 1 number(s): "5"
Test #34:
score: 0
Accepted
time: 184ms
memory: 71008kb
input:
100 100 49 100
output:
5
result:
ok 1 number(s): "5"
Test #35:
score: 0
Accepted
time: 193ms
memory: 71328kb
input:
100 100 49 98
output:
5
result:
ok 1 number(s): "5"
Test #36:
score: 0
Accepted
time: 176ms
memory: 71044kb
input:
100 100 49 97
output:
5
result:
ok 1 number(s): "5"
Test #37:
score: 0
Accepted
time: 183ms
memory: 71652kb
input:
100 100 49 96
output:
5
result:
ok 1 number(s): "5"
Test #38:
score: 0
Accepted
time: 180ms
memory: 70812kb
input:
100 100 49 95
output:
5
result:
ok 1 number(s): "5"
Test #39:
score: 0
Accepted
time: 71ms
memory: 65952kb
input:
100 100 100 0
output:
1
result:
ok 1 number(s): "1"
Test #40:
score: 0
Accepted
time: 1ms
memory: 4004kb
input:
1 100 1 0
output:
1
result:
ok 1 number(s): "1"
Test #41:
score: 0
Accepted
time: 1ms
memory: 4120kb
input:
90 100 5 5
output:
87
result:
ok 1 number(s): "87"
Test #42:
score: 0
Accepted
time: 1ms
memory: 3880kb
input:
100 1 1 0
output:
199
result:
ok 1 number(s): "199"
Test #43:
score: 0
Accepted
time: 20ms
memory: 7624kb
input:
94 61 22 35
output:
9
result:
ok 1 number(s): "9"
Test #44:
score: 0
Accepted
time: 4ms
memory: 4544kb
input:
61 92 36 6
output:
7
result:
ok 1 number(s): "7"
Test #45:
score: 0
Accepted
time: 1ms
memory: 3812kb
input:
73 89 12 4
output:
57
result:
ok 1 number(s): "57"
Test #46:
score: 0
Accepted
time: 0ms
memory: 3888kb
input:
71 80 4 3
output:
-1
result:
ok 1 number(s): "-1"
Test #47:
score: 0
Accepted
time: 1ms
memory: 3908kb
input:
44 75 2 31
output:
85
result:
ok 1 number(s): "85"
Test #48:
score: 0
Accepted
time: 1ms
memory: 3924kb
input:
48 62 5 18
output:
35
result:
ok 1 number(s): "35"
Test #49:
score: 0
Accepted
time: 23ms
memory: 6436kb
input:
73 100 22 49
output:
9
result:
ok 1 number(s): "9"
Extra Test:
score: 0
Extra Test Passed