编号 题目 状态 分数 总时间 内存 代码 / 答案文件 提交者 提交时间
#101497 #1437. [L3-2] Ice World Accepted 100 651 ms 68352 K C++ / 5.4 K wyhao 2024-03-12 21:10:03
显示原始代码
#include <bits/stdc++.h>
using namespace std;
const int N = 35;
int n;
int a1, a2, b1, b2;
int c1, c2, d1, d2;
int dp[N][N][N][N][4][4];
bool vis[N][N][N][N][4][4];
int tt(int x1, int y1, int x2, int y2) {
    int t1 = x1 + y1 - 2;
    int t2 = 2 * n - x2 - y2;
    return t1 > t2;
}
int dx[4] = { 1, 0, -1, 0 };
int dy[4] = { 0, 1, 0, -1 };
bool cp1(int x1, int y1, int xx, int yy) {
    if (x1 == a1 and y1 == b1 and xx == c1 and yy == d1)
        return true;
    if (x1 == c1 and y1 == d1 and xx == a1 and yy == b1)
        return true;
    return false;
}
bool cp2(int x1, int y1, int xx, int yy) {
    if (x1 == a2 and y1 == b2 and xx == c2 and yy == d2)
        return true;
    if (x1 == c2 and y1 == d2 and xx == a2 and yy == b2)
        return true;
    return false;
}
int chk(int x1, int y1, int x2, int y2, int t1, int t2) {
    // printf("%d %d %d %d %d %d\n",x1,y1,x2,y2,t1,t2);
    int d = abs(x1 - x2) + abs(y1 - y2);
    if (d <= 1) {
        if (t1 & 1)
            return 1;
        if (t2 & 1)
            return -1;
    }
    if (x1 == x2 or y1 == y2) {
        if (t1 & 2)
            return 1;
        if (t2 & 2)
            return -1;
    }
    // printf("0\n");
    return 0;
}
int f(int x1, int y1, int x2, int y2, int t1, int t2) {
    if (vis[x1][y1][x2][y2][t1][t2])
        return dp[x1][y1][x2][y2][t1][t2];
    // printf("%d %d %d %d %d %d\n",x1,y1,x2,y2,t1,t2);
    vis[x1][y1][x2][y2][t1][t2] = true;
    if (x1 == n and y1 == n and x2 == 1 and y2 == 1) {
        dp[x1][y1][x2][y2][t1][t2] = 0;
        return 0;
    }
    int t = tt(x1, y1, x2, y2), d, ansk;
    if (t == 0) {
        ansk = -1;
        for (int k = 0, xx, yy, tt; k < 2; k++) {
            xx = x1 + dx[k];
            yy = y1 + dy[k];
            if (xx < 1 or xx > n or yy < 1 or yy > n)
                continue;
            if (!(t2 & 1)) {
                if (cp1(x1, y1, xx, yy)) {
                    d = chk(xx, yy, x2, y2, t1 + 1, t2);
                    if (d == 1) {
                        dp[x1][y1][x2][y2][t1][t2] = 1;
                        return 1;
                    } else if (d == -1) {
                        continue;
                    }
                    d = f(xx, yy, x2, y2, t1 + 1, t2);
                    if (d == 1) {
                        dp[x1][y1][x2][y2][t1][t2] = 1;
                        return 1;
                    }
                    ansk = max(ansk, d);
                }
            }
            if (!(t2 & 2)) {
                if (cp2(x1, y1, xx, yy)) {
                    d = chk(xx, yy, x2, y2, t1 + 2, t2);
                    if (d == 1) {
                        dp[x1][y1][x2][y2][t1][t2] = 1;
                        return 1;
                    } else if (d == -1) {
                        continue;
                    }
                    d = f(xx, yy, x2, y2, t1 + 2, t2);
                    if (d == 1) {
                        dp[x1][y1][x2][y2][t1][t2] = 1;
                        return 1;
                    }
                    ansk = max(ansk, d);
                }
            }
            d = chk(xx, yy, x2, y2, t1, t2);
            // printf("%d\n",d);
            if (d == 1) {
                dp[x1][y1][x2][y2][t1][t2] = 1;
                return 1;
            } else if (d == -1) {
                continue;
            }
            d = f(xx, yy, x2, y2, t1, t2);
            if (d == 1) {
                dp[x1][y1][x2][y2][t1][t2] = 1;
                return 1;
            }
            ansk = max(ansk, d);
        }
        dp[x1][y1][x2][y2][t1][t2] = ansk;
        return ansk;
    } else {
        ansk = 1;
        for (int k = 2, xx, yy, tt; k < 4; k++) {
            xx = x2 + dx[k];
            yy = y2 + dy[k];
            if (xx < 1 or xx > n or yy < 1 or yy > n)
                continue;
            if (!(t1 & 1)) {
                if (cp1(x2, y2, xx, yy)) {
                    d = chk(x1, y1, xx, yy, t1, t2 + 1);
                    if (d == -1) {
                        dp[x1][y1][x2][y2][t1][t2] = -1;
                        return -1;
                    } else if (d == 1) {
                        continue;
                    }
                    d = f(x1, y1, xx, yy, t1, t2 + 1);
                    if (d == -1) {
                        dp[x1][y1][x2][y2][t1][t2] = -1;
                        return -1;
                    }
                    ansk = min(ansk, d);
                }
            }
            if (!(t1 & 2)) {
                if (cp2(x2, y2, xx, yy)) {
                    d = chk(x1, y1, xx, yy, t1, t2 + 2);
                    if (d == -1) {
                        dp[x1][y1][x2][y2][t1][t2] = -1;
                        return -1;
                    } else if (d == 1) {
                        continue;
                    }
                    d = f(x1, y1, xx, yy, t1, t2 + 2);
                    if (d == -1) {
                        dp[x1][y1][x2][y2][t1][t2] = -1;
                        return -1;
                    }
                    ansk = min(ansk, d);
                }
            }
            d = chk(x1, y1, xx, yy, t1, t2);
            // printf("%d\n",d);
            if (d == -1) {
                dp[x1][y1][x2][y2][t1][t2] = -1;
                return -1;
            } else if (d == 1) {
                continue;
            }
            d = f(x1, y1, xx, yy, t1, t2);
            if (d == -1) {
                dp[x1][y1][x2][y2][t1][t2] = -1;
                return -1;
            }
            ansk = min(ansk, d);
        }
        dp[x1][y1][x2][y2][t1][t2] = ansk;
        return ansk;
    }
}
int main() {
    int tests;
    scanf("%d", &tests);
    while (tests--) {
        scanf("%d", &n);
        scanf("%d%d%d%d", &a1, &b1, &c1, &d1);
        scanf("%d%d%d%d", &a2, &b2, &c2, &d2);
        memset(vis, 0, sizeof vis);
        int d = f(1, 1, n, n, 0, 0);
        if (d == 1)
            puts("Alice");
        else if (d == -1)
            puts("Bob");
        else
            puts("0");
    }
    return 0;
}
子任务 #1
Accepted
得分:100
测试点 #1
Accepted
得分:100
用时:41 ms
内存:23796 KiB

输入文件(1.in

20
2 2 1 2 2 1 1 1 2
2 1 1 2 1 1 1 1 2
2 2 1 2 2 2 1 2 2
2 1 2 2 2 2 1 2 2
2 1 1 1 2 1 1 1 2
2 1 1 2
<262 bytes omitted>

答案文件(1.out

Alice
Alice
Bob
Bob
Alice
Alice
Alice
Alice
Bob
Alice
Alice
Alice
Alice
Alice
Alice
Alice
Alice
Alic
<14 bytes omitted>

用户输出

Alice
Alice
Bob
Bob
Alice
Alice
Alice
Alice
Bob
Alice
Alice
Alice
Alice
Alice
Alice
Alice
Alice
Alice
Alice
Alice

系统信息

Exited with return code 0
测试点 #2
Accepted
得分:100
用时:56 ms
内存:24308 KiB

输入文件(2.in

20
5 5 3 5 4 2 4 3 4
5 2 3 3 3 2 2 2 3
4 2 1 2 2 3 4 4 4
6 1 2 1 3 1 2 2 2
6 5 1 5 2 6 5 6 6
4 4 3 4
<262 bytes omitted>

答案文件(2.out

Bob
Alice
Bob
Alice
Bob
Bob
Alice
Bob
Alice
Alice
Bob
Alice
Bob
Bob
Alice
Alice
Bob
Bob
Alice
Alice

用户输出

Bob
Alice
Bob
Alice
Bob
Bob
Alice
Bob
Alice
Alice
Bob
Alice
Bob
Bob
Alice
Alice
Bob
Bob
Alice
Alice

系统信息

Exited with return code 0
测试点 #3
Accepted
得分:100
用时:43 ms
内存:24296 KiB

输入文件(3.in

20
3 1 3 2 3 1 2 1 3
6 6 2 6 3 5 4 5 5
4 4 2 4 3 1 2 2 2
3 1 3 2 3 2 2 3 2
3 2 2 3 2 1 3 2 3
5 4 1 5
<262 bytes omitted>

答案文件(3.out

Alice
Bob
Alice
0
Bob
Bob
Alice
Alice
Alice
Alice
Alice
Bob
Alice
Alice
0
Alice
Bob
Bob
Alice
Bob

用户输出

Alice
Bob
Alice
0
Bob
Bob
Alice
Alice
Alice
Alice
Alice
Bob
Alice
Alice
0
Alice
Bob
Bob
Alice
Bob

系统信息

Exited with return code 0
测试点 #4
Accepted
得分:100
用时:62 ms
内存:24304 KiB

输入文件(4.in

20
5 4 3 4 4 2 3 2 4
4 3 4 4 4 3 4 4 4
3 2 1 2 2 2 3 3 3
4 1 4 2 4 1 1 1 2
4 1 1 1 2 4 1 4 2
6 3 4 3
<262 bytes omitted>

答案文件(4.out

Alice
Bob
Bob
Alice
Alice
Alice
Bob
Bob
Alice
Alice
Bob
Bob
Alice
Alice
Bob
Alice
Alice
Alice
Bob
Bo
<2 bytes omitted>

用户输出

Alice
Bob
Bob
Alice
Alice
Alice
Bob
Bob
Alice
Alice
Bob
Bob
Alice
Alice
Bob
Alice
Alice
Alice
Bob
Bob

系统信息

Exited with return code 0
测试点 #5
Accepted
得分:100
用时:53 ms
内存:24180 KiB

输入文件(5.in

20
3 2 2 3 2 1 1 1 2
6 5 5 5 6 1 5 2 5
3 2 3 3 3 2 1 3 1
5 1 3 1 4 2 3 2 4
5 2 3 3 3 2 5 3 5
4 1 2 1
<262 bytes omitted>

答案文件(5.out

Alice
Bob
Bob
Alice
Bob
Alice
Alice
Bob
Bob
Alice
Bob
Alice
Alice
Bob
Bob
0
Alice
Alice
Bob
Alice

用户输出

Alice
Bob
Bob
Alice
Bob
Alice
Alice
Bob
Bob
Alice
Bob
Alice
Alice
Bob
Bob
0
Alice
Alice
Bob
Alice

系统信息

Exited with return code 0
测试点 #6
Accepted
得分:100
用时:59 ms
内存:25584 KiB

输入文件(6.in

20
9 4 2 4 3 4 7 5 7
9 3 7 4 7 4 4 5 4
10 2 9 3 9 9 8 10 8
9 4 1 5 1 7 7 7 8
9 8 7 9 7 4 1 5 1
10 7 
<276 bytes omitted>

答案文件(6.out

Bob
Alice
Bob
Bob
Alice
Bob
Alice
Bob
Alice
Alice
Alice
Bob
Bob
Bob
0
0
Alice
Alice
Alice
Bob

用户输出

Bob
Alice
Bob
Bob
Alice
Bob
Alice
Bob
Alice
Alice
Alice
Bob
Bob
Bob
0
0
Alice
Alice
Alice
Bob

系统信息

Exited with return code 0
测试点 #7
Accepted
得分:100
用时:49 ms
内存:25600 KiB

输入文件(7.in

20
10 4 2 5 2 8 1 8 2
9 9 3 9 4 6 3 7 3
10 4 6 5 6 3 4 3 5
9 7 9 8 9 1 6 2 6
9 7 7 7 8 6 8 7 8
9 4 3
<274 bytes omitted>

答案文件(7.out

Alice
Bob
Alice
0
Bob
Bob
Bob
Alice
Alice
Alice
Bob
Bob
Bob
Alice
Alice
Alice
Bob
Alice
Alice
Alice

用户输出

Alice
Bob
Alice
0
Bob
Bob
Bob
Alice
Alice
Alice
Bob
Bob
Bob
Alice
Alice
Alice
Bob
Alice
Alice
Alice

系统信息

Exited with return code 0
测试点 #8
Accepted
得分:100
用时:83 ms
内存:63416 KiB

输入文件(8.in

20
12 11 6 11 7 4 7 5 7
10 3 7 4 7 7 1 8 1
18 9 16 10 16 12 10 12 11
22 12 13 13 13 4 9 5 9
5 4 2 4 
<344 bytes omitted>

答案文件(8.out

Alice
Alice
Bob
Alice
Bob
Alice
Bob
Bob
Bob
Bob
Alice
Alice
Alice
Bob
Bob
Alice
Bob
Alice
Bob
Alice

用户输出

Alice
Alice
Bob
Alice
Bob
Alice
Bob
Bob
Bob
Bob
Alice
Alice
Alice
Bob
Bob
Alice
Bob
Alice
Bob
Alice

系统信息

Exited with return code 0
测试点 #9
Accepted
得分:100
用时:100 ms
内存:68352 KiB

输入文件(9.in

20
5 3 2 4 2 4 2 4 3
6 5 3 5 4 3 2 4 2
5 4 5 5 5 4 1 5 1
8 5 6 5 7 7 5 7 6
21 3 4 3 5 18 21 19 21
15
<339 bytes omitted>

答案文件(9.out

Alice
0
Bob
Bob
Bob
Alice
Bob
Bob
Alice
Alice
Alice
Alice
Alice
Bob
Bob
Bob
Bob
Bob
Alice
Alice

用户输出

Alice
0
Bob
Bob
Bob
Alice
Bob
Bob
Alice
Alice
Alice
Alice
Alice
Bob
Bob
Bob
Bob
Bob
Alice
Alice

系统信息

Exited with return code 0
测试点 #10
Accepted
得分:100
用时:105 ms
内存:64844 KiB

输入文件(10.in

20
30 16 8 16 9 9 24 9 25
30 6 6 7 6 15 23 16 23
30 28 23 28 24 8 12 9 12
30 22 24 23 24 28 28 29 28
<399 bytes omitted>

答案文件(10.out

Bob
Bob
0
Bob
Alice
Bob
Bob
Alice
Bob
Bob
Bob
Alice
Alice
Bob
Alice
Bob
Bob
Alice
Alice
Bob

用户输出

Bob
Bob
0
Bob
Alice
Bob
Bob
Alice
Bob
Bob
Bob
Alice
Alice
Bob
Alice
Bob
Bob
Alice
Alice
Bob

系统信息

Exited with return code 0