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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
#692321#6425. Harmonious Rectangleyzj123#WA 893ms3632kbC++201.4kb2024-10-31 14:19:222024-10-31 14:19:28

Judging History

你现在查看的是最新测评结果

  • [2024-10-31 14:19:28]
  • 评测
  • 测评结果:WA
  • 用时:893ms
  • 内存:3632kb
  • [2024-10-31 14:19:22]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;

#define ll long long
const ll mod=1e9+7;
int g[8][8];
int n,m;
ll ans;

ll qmi(ll a,ll b)
{
    ll res=1ll;
    while(b)
    {
        if(b&1)res=res*a%mod;
        a=a*a%mod;
        b>>=1;
    }
    return res;
}

void dfs(int x,int y)
{
    if (x == n + 1) return ;
    for(int k=1;k<=3;++k)
    {
        g[x][y]=k;
        int flag=0;
        for(int i=1;i<x;++i)
        {
            for(int j=1;j<y;++j)
            {
                if((g[x][y]==g[x][j]&&g[i][j]==g[i][y])||(g[i][j]==g[x][j]&&g[i][y]==g[x][y]))
                {
                    int cnt=m*n-(x-1)*m-y;
                    ans=(ans+qmi(3,cnt))%mod;
                    flag=1;break;
                }
            }
            if(flag)break;
        }
        if(flag)continue;
        int xx,yy;
        if(y==m){xx=x+1;yy=1;}
        else {xx=x;yy=y+1;}
        
        dfs(xx,yy);
    }
}
std::map<std::pair<int, int>, int> mp;
int main()
{
    for (int i = 1; i <= 7; i ++) {
        for (int j = 1; j <= 7; j ++) {
            n = i, m = j;
            ans = 0;dfs(1, 1);
            mp[{i, j}] = ans;
        }
    }
    int t;
    std::cin >> t;
    while (t --) {
    int n, m;
    std::cin >> n >> m;
    if (std::max(n, m) > 7) {
        std::cout << qmi(3, n * m) << '\n';
    } else {
        std::cout << mp[{n, m}] << '\n';
    }
    }
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 893ms
memory: 3628kb

input:

3
1 4
2 2
3 3

output:

0
15
16485

result:

ok 3 number(s): "0 15 16485"

Test #2:

score: -100
Wrong Answer
time: 890ms
memory: 3632kb

input:

10000
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 10
1 11
1 12
1 13
1 14
1 15
1 16
1 17
1 18
1 19
1 20
1 21
1 22
1 23
1 24
1 25
1 26
1 27
1 28
1 29
1 30
1 31
1 32
1 33
1 34
1 35
1 36
1 37
1 38
1 39
1 40
1 41
1 42
1 43
1 44
1 45
1 46
1 47
1 48
1 49
1 50
1 51
1 52
1 53
1 54
1 55
1 56
1 57
1 58
1 59
1 60
1 6...

output:

0
0
0
0
0
0
0
6561
19683
59049
177147
531441
1594323
4782969
14348907
43046721
129140163
387420489
162261460
486784380
460353133
381059392
143178169
429534507
288603514
865810542
597431612
792294829
376884473
130653412
391960236
175880701
527642103
582926302
748778899
246336683
739010049
217030133
6...

result:

wrong answer 8th numbers differ - expected: '0', found: '6561'