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
#101399 #1437. [L3-2] Ice World Accepted 100 1106 ms 3712 K C++ (NOI) / 3.0 K Veritas 2024-03-11 12:06:27
显示原始代码
#include <iostream>
#include <cstdio>
#include <map>
using namespace std;
inline int read() {
    int x = 0;
    char c = getchar();
    while (c < '0' || c > '9') c = getchar();
    while (c >= '0' && c <= '9') {
        x = x * 10 + c - '0';
        c = getchar();
    }
    return x;
}
inline int myabs(int x) { return x < 0 ? -x : x; }
inline int dis(int a, int b, int c, int d) { return myabs(a - c) + myabs(b - d); }
// f[i][j][k][l][0/1=Alice turn][0/1/2=XD's owner][0/1/2=JJ's owner]
// draw1, alice2, bob3
struct State {
    int ax, ay, bx, by;
    int xd, jj;
    bool operator<(const State b) const {
        long long *p = (long long *)this, *q = (long long *)&b;
        if (p[0] != q[0])
            return p[0] < q[0];
        if (p[1] != q[1])
            return p[1] < q[1];
        if (p[2] != q[2])
            return p[2] < q[2];
        return 0;
    }
};
map<State, int> f;
int n, a1, b1, c1, d1, a2, b2, c2, d2;
bool check(int a, int b, int c, int d, int flag) {
    if (flag == 1) {
        return (a == a1 && b == b1 && c == c1 && d == d1) || (a == c1 && b == d1 && c == a1 && d == b1);
    }
    return (a == a2 && b == b2 && c == c2 && d == d2) || (a == c2 && b == d2 && c == a2 && d == b2);
}
int cnt = 0;
int solve(int ax, int ay, int bx, int by, int xd, int jj) {
    State cur = { ax, ay, bx, by, xd, jj };
    if (f[cur])
        return f[cur];
    ++cnt;
    if (dis(ax, ay, bx, by) == 1) {
        if (xd)
            return f[cur] = xd + 1;
    }
    if (ax == bx || ay == by) {
        if (jj)
            return f[cur] = jj + 1;
    }
    if (ax == n && ay == n && bx == 1 && by == 1) {
        return f[cur] = 1;
    }
    // printf("%d %d %d %d %d %d %d\n",ax,ay,bx,by,xd,jj,(int)flag);
    if (ax + ay + bx + by == 2 * n + 2) {
        // alice turn
        int tmp1 = 3, tmp2 = 3;
        if (ax < n) {
            int nxd = xd, njj = jj;
            if (check(ax, ay, ax + 1, ay, 1) && xd == 0)
                nxd = 1;
            if (check(ax, ay, ax + 1, ay, 2) && jj == 0)
                njj = 1;
            tmp1 = solve(ax + 1, ay, bx, by, nxd, njj);
        }
        if (ay < n) {
            int nxd = xd, njj = jj;
            if (check(ax, ay, ax, ay + 1, 1) && xd == 0)
                nxd = 1;
            if (check(ax, ay, ax, ay + 1, 2) && jj == 0)
                njj = 1;
            tmp2 = solve(ax, ay + 1, bx, by, nxd, njj);
        }
        if (tmp1 == 2 || tmp2 == 2)
            return f[cur] = 2;
        if (tmp1 == 3 && tmp2 == 3)
            return f[cur] = 3;
        return f[cur] = 1;
    } else {
        // bob turn
        int tmp1 = 2, tmp2 = 2;
        if (bx > 1) {
            int nxd = xd, njj = jj;
            if (check(bx, by, bx - 1, by, 1) && xd == 0)
                nxd = 2;
            if (check(bx, by, bx - 1, by, 2) && jj == 0)
                njj = 2;
            tmp1 = solve(ax, ay, bx - 1, by, nxd, njj);
        }
        if (by > 1) {
            int nxd = xd, njj = jj;
            if (check(bx, by, bx, by - 1, 1) && xd == 0)
                nxd = 2;
            if (check(bx, by, bx, by - 1, 2) && jj == 0)
                njj = 2;
            tmp2 = solve(ax, ay, bx, by - 1, nxd, njj);
        }
        if (tmp1 == 3 || tmp2 == 3)
            return f[cur] = 3;
        if (tmp1 == 2 && tmp2 == 2)
            return f[cur] = 2;
        return f[cur] = 1;
    }
}
void work() {
    n = read();
    a1 = read();
    b1 = read();
    c1 = read();
    d1 = read();
    a2 = read();
    b2 = read();
    c2 = read();
    d2 = read();
    f.clear();
    cnt = 0;
    switch (solve(1, 1, n, n, 0, 0)) {
        case 1:
            puts("0");
            break;
        case 2:
            puts("Alice");
            break;
        case 3:
            puts("Bob");
            break;
    }
    // cout<<f.size()<<endl<<cnt<<endl;
    // for(auto x:f){
    //   printf("res=%d\t,state={%d %d %d %d %d %d
    //   %d}\n",x.second,x.first.ax,x.first.ay,x.first.bx,x.first.by,
    //                                                 x.first.xd,x.first.jj,(int)x.first.flag);
    // }
}
int main() {
    int T = read();
    while (T--) work();
}
子任务 #1
Accepted
得分:100
测试点 #1
Accepted
得分:100
用时:3 ms
内存:180 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:4 ms
内存:240 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:4 ms
内存:384 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:3 ms
内存:232 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:4 ms
内存:256 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:22 ms
内存:256 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:21 ms
内存:240 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:159 ms
内存:3524 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:157 ms
内存:3048 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:729 ms
内存:3712 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