QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #665520 | #7781. Sheep Eat Wolves | KIRITO1211 | AC ✓ | 189ms | 5036kb | C++17 | 2.6kb | 2024-10-22 13:48:27 | 2024-10-22 13:48:28 |
Judging History
answer
#include <bits/stdc++.h>
#include <climits>
using ll = long long;
// 定义状态结构体
struct State {
int x;
int y;
int st;
};
// 线段树合并信息
using viii = std::vector<std::vector<std::vector<ll>>>;
using vii = std::vector<std::vector<int>>;
void solve() {
int x, y, p, q;
std::cin >> x >> y >> p >> q;
// 确保 x 和 y 为非负数
if (x < 0 || y < 0) {
std::cout << "-1\n";
return;
}
// 初始化 dp 和 vis
viii dp(x + 2, std::vector<std::vector<ll>>(y + 2, std::vector<ll>(2, LLONG_MAX)));
dp[x][y][0] = 0;
viii vis(x + 2, std::vector<std::vector<ll>>(y + 2, std::vector<ll>(2, 0)));
std::queue<State> qq;
qq.push(State{ x, y, 0 });
int cnt = 0;
while(!qq.empty()){
State current = qq.front();
qq.pop();
cnt++;
int xx = current.x;
int yy = current.y;
int st = current.st;
if(vis[xx][yy][st]) continue;
vis[xx][yy][st] = 1;
// 调试信息（可选）
// std::cerr << "Processing state: (" << xx << ", " << yy << ", " << st << ")\n";
for(int i = 0; i <= x; i++){
for(int j = 0; j <= y; j++){
if(st == 0){
if(i > xx || j > yy) continue;
if((j > i + q && i != 0) || (xx - i + yy - j > p)) continue;
if(dp[xx][yy][st] + 1 < dp[i][j][1]){
dp[i][j][1] = dp[xx][yy][st] + 1;
if(!vis[i][j][1]){
qq.push(State{ i, j, 1 });
}
}
}
else{
if(i < xx || j < yy) continue;
if((y - j > x - i + q && x - i != 0) || (i - xx + j - yy > p)) continue;
if(dp[xx][yy][st] + 1 < dp[i][j][0]){
dp[i][j][0] = dp[xx][yy][st] + 1;
if(!vis[i][j][0]){
qq.push(State{ i, j, 0 });
}
}
}
}
}
}
ll ans = LLONG_MAX;
for(int j = 0; j <= y; j++){
ans = std::min(ans, dp[0][j][0]);
ans = std::min(ans, dp[0][j][1]);
}
std::cout << ((ans == LLONG_MAX) ? -1 : ans) << '\n';
}
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(0);
std::cout << std::fixed << std::setprecision(10);
int t = 1;
// std::cin >> t;
while (t--) {
solve();
}
return 0;
}
这程序好像有点Bug，我给组数据试试？
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3780kb
input:
4 4 3 1
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3740kb
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: 3568kb
input:
1 1 1 0
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 0ms
memory: 3808kb
input:
3 3 1 1
output:
7
result:
ok 1 number(s): "7"
Test #6:
score: 0
Accepted
time: 0ms
memory: 3544kb
input:
3 3 2 1
output:
3
result:
ok 1 number(s): "3"
Test #7:
score: 0
Accepted
time: 0ms
memory: 3592kb
input:
10 9 1 10
output:
19
result:
ok 1 number(s): "19"
Test #8:
score: 0
Accepted
time: 1ms
memory: 3856kb
input:
15 20 2 5
output:
27
result:
ok 1 number(s): "27"
Test #9:
score: 0
Accepted
time: 1ms
memory: 3632kb
input:
18 40 16 7
output:
5
result:
ok 1 number(s): "5"
Test #10:
score: 0
Accepted
time: 7ms
memory: 4032kb
input:
60 60 8 1
output:
27
result:
ok 1 number(s): "27"
Test #11:
score: 0
Accepted
time: 9ms
memory: 4032kb
input:
60 60 8 4
output:
27
result:
ok 1 number(s): "27"
Test #12:
score: 0
Accepted
time: 12ms
memory: 3952kb
input:
60 60 8 8
output:
25
result:
ok 1 number(s): "25"
Test #13:
score: 0
Accepted
time: 7ms
memory: 4236kb
input:
60 60 16 1
output:
13
result:
ok 1 number(s): "13"
Test #14:
score: 0
Accepted
time: 15ms
memory: 4016kb
input:
60 60 16 8
output:
11
result:
ok 1 number(s): "11"
Test #15:
score: 0
Accepted
time: 18ms
memory: 4040kb
input:
60 60 16 16
output:
11
result:
ok 1 number(s): "11"
Test #16:
score: 0
Accepted
time: 20ms
memory: 3968kb
input:
60 60 16 24
output:
9
result:
ok 1 number(s): "9"
Test #17:
score: 0
Accepted
time: 3ms
memory: 3920kb
input:
75 15 1 1
output:
175
result:
ok 1 number(s): "175"
Test #18:
score: 0
Accepted
time: 1ms
memory: 4164kb
input:
50 100 1 0
output:
-1
result:
ok 1 number(s): "-1"
Test #19:
score: 0
Accepted
time: 65ms
memory: 4884kb
input:
100 100 10 10
output:
35
result:
ok 1 number(s): "35"
Test #20:
score: 0
Accepted
time: 38ms
memory: 4684kb
input:
100 100 10 1
output:
37
result:
ok 1 number(s): "37"
Test #21:
score: 0
Accepted
time: 90ms
memory: 4728kb
input:
100 100 10 20
output:
33
result:
ok 1 number(s): "33"
Test #22:
score: 0
Accepted
time: 112ms
memory: 4636kb
input:
100 100 10 30
output:
31
result:
ok 1 number(s): "31"
Test #23:
score: 0
Accepted
time: 161ms
memory: 4636kb
input:
100 100 10 80
output:
21
result:
ok 1 number(s): "21"
Test #24:
score: 0
Accepted
time: 164ms
memory: 4960kb
input:
100 100 1 100
output:
199
result:
ok 1 number(s): "199"
Test #25:
score: 0
Accepted
time: 21ms
memory: 4692kb
input:
100 100 5 0
output:
95
result:
ok 1 number(s): "95"
Test #26:
score: 0
Accepted
time: 76ms
memory: 4740kb
input:
100 100 25 3
output:
13
result:
ok 1 number(s): "13"
Test #27:
score: 0
Accepted
time: 82ms
memory: 4700kb
input:
100 100 30 4
output:
11
result:
ok 1 number(s): "11"
Test #28:
score: 0
Accepted
time: 16ms
memory: 4728kb
input:
95 100 3 3
output:
125
result:
ok 1 number(s): "125"
Test #29:
score: 0
Accepted
time: 97ms
memory: 4644kb
input:
98 99 50 6
output:
5
result:
ok 1 number(s): "5"
Test #30:
score: 0
Accepted
time: 98ms
memory: 4664kb
input:
100 100 45 4
output:
7
result:
ok 1 number(s): "7"
Test #31:
score: 0
Accepted
time: 152ms
memory: 4792kb
input:
100 100 40 39
output:
7
result:
ok 1 number(s): "7"
Test #32:
score: 0
Accepted
time: 126ms
memory: 4972kb
input:
100 100 45 19
output:
7
result:
ok 1 number(s): "7"
Test #33:
score: 0
Accepted
time: 184ms
memory: 4748kb
input:
100 100 49 99
output:
5
result:
ok 1 number(s): "5"
Test #34:
score: 0
Accepted
time: 189ms
memory: 4800kb
input:
100 100 49 100
output:
5
result:
ok 1 number(s): "5"
Test #35:
score: 0
Accepted
time: 188ms
memory: 4984kb
input:
100 100 49 98
output:
5
result:
ok 1 number(s): "5"
Test #36:
score: 0
Accepted
time: 188ms
memory: 4744kb
input:
100 100 49 97
output:
5
result:
ok 1 number(s): "5"
Test #37:
score: 0
Accepted
time: 184ms
memory: 5028kb
input:
100 100 49 96
output:
5
result:
ok 1 number(s): "5"
Test #38:
score: 0
Accepted
time: 184ms
memory: 4820kb
input:
100 100 49 95
output:
5
result:
ok 1 number(s): "5"
Test #39:
score: 0
Accepted
time: 96ms
memory: 5036kb
input:
100 100 100 0
output:
1
result:
ok 1 number(s): "1"
Test #40:
score: 0
Accepted
time: 0ms
memory: 3572kb
input:
1 100 1 0
output:
1
result:
ok 1 number(s): "1"
Test #41:
score: 0
Accepted
time: 19ms
memory: 4564kb
input:
90 100 5 5
output:
87
result:
ok 1 number(s): "87"
Test #42:
score: 0
Accepted
time: 1ms
memory: 3628kb
input:
100 1 1 0
output:
199
result:
ok 1 number(s): "199"
Test #43:
score: 0
Accepted
time: 54ms
memory: 4280kb
input:
94 61 22 35
output:
9
result:
ok 1 number(s): "9"
Test #44:
score: 0
Accepted
time: 23ms
memory: 4244kb
input:
61 92 36 6
output:
7
result:
ok 1 number(s): "7"
Test #45:
score: 0
Accepted
time: 10ms
memory: 4288kb
input:
73 89 12 4
output:
57
result:
ok 1 number(s): "57"
Test #46:
score: 0
Accepted
time: 1ms
memory: 4232kb
input:
71 80 4 3
output:
-1
result:
ok 1 number(s): "-1"
Test #47:
score: 0
Accepted
time: 11ms
memory: 4164kb
input:
44 75 2 31
output:
85
result:
ok 1 number(s): "85"
Test #48:
score: 0
Accepted
time: 6ms
memory: 3948kb
input:
48 62 5 18
output:
35
result:
ok 1 number(s): "35"
Test #49:
score: 0
Accepted
time: 77ms
memory: 4460kb
input:
73 100 22 49
output:
9
result:
ok 1 number(s): "9"
Extra Test:
score: 0
Extra Test Passed