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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
#355957	#5575. Knight's Tour Redux	cyc001	AC ✓	8ms	3964kb	C++23	1.5kb	2024-03-17 14:12:43	2024-03-17 14:12:45

Judging History

你现在查看的是最新测评结果

[2024-03-17 14:12:45]
评测

测评结果：AC
用时：8ms
内存：3964kb

查看

[2024-03-17 14:12:43]
提交

answer

#include<bits/stdc++.h>
#define cir(i,a,b) for(int i=a;i<b;++i)
using namespace std;
const vector<array<int,2>> nxt{
    {-1,-3},{-1,3},{1,-3},{1,3},{-3,-1},{-3,1},{3,-1},{3,1}
};
vector<array<int,2>> qc,mxn;
vector<bool> sx,sy;
auto dfs(int n,int x,int y,int dep){
    if(x>n||x<1||y>n||y<1) return;
    if(sx[x]||sy[y]) return;
    sx[x]=true;sy[y]=true;
    qc.push_back({x,y});
    auto res=[&](){
        sx[x]=false;sy[y]=false;
        qc.pop_back();
    };
    if(dep==n) throw exception();
    for(const auto&[mx,my]:nxt) dfs(n,x+mx,y+my,dep+1);
    res();
}
auto print(int n,int lc)->void{
    if(n-lc+1>12){
        if(!lc) cout<<1<<' '<<1<<'\n';
        for(auto&[mx,my]:mxn) cout<<lc+mx<<' '<<lc+my<<'\n';
        print(n,lc+6);
    }else{
        try{
            sx.resize(17);sy.resize(17);
            dfs(n-lc,1,1,1);
            abort();
        }catch(exception&){
            for(auto&[mx,my]:qc) if(mx>1||(!lc)){
                cout<<lc+mx<<' '<<lc+my<<'\n';
            }
        }
    }
}
int main(){
    ios::sync_with_stdio(false),cin.tie(0);
    int n;cin>>n;
    if(n>1&&n<5) exit((cout<<"IMPOSSIBLE\n",0));
    cout<<"POSSIBLE\n";
    if(n==1){
        cout<<"1 1\n";
    }else if(n==5){
        for(auto[ax,ay]:{make_pair(3,5),make_pair(4,2),
            make_pair(1,1),make_pair(2,4),make_pair(5,3)}){
            cout<<ax<<' '<<ay<<'\n';
        }
    }else{
        mxn={{2,4},{5,5},{6,2},{3,3},{4,6},{7,7}};
        print(n,0);
    }
    return 0;
}

源文件, 语言: C++23

详细

Test #1:

score: 100

Accepted

time: 0ms

memory: 3612kb

input:

output:

POSSIBLE
1 1

result:

ok answer = 1

Test #2:

score: 0

Accepted

time: 1ms

memory: 3556kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #3:

score: 0

Accepted

time: 0ms

memory: 3496kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #4:

score: 0

Accepted

time: 1ms

memory: 3824kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #5:

score: 0

Accepted

time: 1ms

memory: 3504kb

input:

output:

POSSIBLE
3 5
4 2
1 1
2 4
5 3

result:

ok answer = 1

Test #6:

score: 0

Accepted

time: 1ms

memory: 3908kb

input:

output:

POSSIBLE
1 1
2 4
5 3
6 6
3 5
4 2

result:

ok answer = 1

Test #7:

score: 0

Accepted

time: 0ms

memory: 3776kb

input:

output:

POSSIBLE
1 1
2 4
3 7
6 6
7 3
4 2
5 5

result:

ok answer = 1

Test #8:

score: 0

Accepted

time: 1ms

memory: 3780kb

input:

output:

result:

ok answer = 1

Test #9:

score: 0

Accepted

time: 0ms

memory: 3948kb

input:

output:

result:

ok answer = 1

Test #10:

score: 0

Accepted

time: 1ms

memory: 3956kb

input:

output:

result:

ok answer = 1

Test #11:

score: 0

Accepted

time: 0ms

memory: 3912kb

input:

output:

result:

ok answer = 1

Test #12:

score: 0

Accepted

time: 0ms

memory: 3948kb

input:

output:

result:

ok answer = 1

Test #13:

score: 0

Accepted

time: 0ms

memory: 3672kb

input:

output:

result:

ok answer = 1

Test #14:

score: 0

Accepted

time: 0ms

memory: 3680kb

input:

output:

result:

ok answer = 1

Test #15:

score: 0

Accepted

time: 0ms

memory: 3908kb

input:

output:

result:

ok answer = 1

Test #16:

score: 0

Accepted

time: 0ms

memory: 3760kb

input:

output:

result:

ok answer = 1

Test #17:

score: 0

Accepted

time: 0ms

memory: 3680kb

input:

output:

result:

ok answer = 1

Test #18:

score: 0

Accepted

time: 0ms

memory: 3660kb

input:

output:

result:

ok answer = 1

Test #19:

score: 0

Accepted

time: 0ms

memory: 3740kb

input:

output:

result:

ok answer = 1

Test #20:

score: 0

Accepted

time: 1ms

memory: 3720kb

input:

output:

result:

ok answer = 1

Test #21:

score: 0

Accepted

time: 8ms

memory: 3672kb

input:

output:

result:

ok answer = 1

Test #22:

score: 0

Accepted

time: 8ms

memory: 3672kb

input:

output:

result:

ok answer = 1

Test #23:

score: 0

Accepted

time: 8ms

memory: 3960kb

input:

output:

result:

ok answer = 1

Test #24:

score: 0

Accepted

time: 8ms

memory: 3964kb

input:

output:

result:

ok answer = 1

Test #25:

score: 0

Accepted

time: 5ms

memory: 3944kb

input:

output:

result:

ok answer = 1

Test #26:

score: 0

Accepted

time: 0ms

memory: 3660kb

input:

output:

result:

ok answer = 1

Test #27:

score: 0

Accepted

time: 8ms

memory: 3960kb

input:

output:

result:

ok answer = 1

Test #28:

score: 0

Accepted

time: 8ms

memory: 3836kb

input:

output:

result:

ok answer = 1

Test #29:

score: 0

Accepted

time: 8ms

memory: 3688kb

input:

output:

result:

ok answer = 1

Test #30:

score: 0

Accepted

time: 8ms

memory: 3664kb

input:

output:

result:

ok answer = 1

Test #31:

score: 0

Accepted

time: 4ms

memory: 3840kb

input:

output:

result:

ok answer = 1

Test #32:

score: 0

Accepted

time: 6ms

memory: 3672kb

input:

output:

result:

ok answer = 1

Test #33:

score: 0

Accepted

time: 2ms

memory: 3720kb

input:

output:

result:

ok answer = 1

Test #34:

score: 0

Accepted

time: 3ms

memory: 3832kb

input:

output:

result:

ok answer = 1

Test #35:

score: 0

Accepted

time: 3ms

memory: 3664kb

input:

output:

result:

ok answer = 1

Test #36:

score: 0

Accepted

time: 3ms

memory: 3944kb

input:

output:

result:

ok answer = 1

Test #37:

score: 0

Accepted

time: 3ms

memory: 3640kb

input:

output:

result:

ok answer = 1

Test #38:

score: 0

Accepted

time: 3ms

memory: 3836kb

input:

output:

result:

ok answer = 1

Test #39:

score: 0

Accepted

time: 1ms

memory: 3684kb

input:

output:

result:

ok answer = 1

Test #40:

score: 0

Accepted

time: 4ms

memory: 3768kb

input:

output:

result:

ok answer = 1

Test #41:

score: 0

Accepted

time: 8ms

memory: 3676kb

input:

output:

result:

ok answer = 1

Test #42:

score: 0

Accepted

time: 3ms

memory: 3716kb

input:

output:

result:

ok answer = 1

Test #43:

score: 0

Accepted

time: 7ms

memory: 3660kb

input:

output:

result:

ok answer = 1

Test #44:

score: 0

Accepted

time: 2ms

memory: 3676kb

input:

output:

result:

ok answer = 1

Test #45:

score: 0

Accepted

time: 3ms

memory: 3748kb

input:

output:

result:

ok answer = 1

Test #46:

score: 0

Accepted

time: 4ms

memory: 3684kb

input:

output:

result:

ok answer = 1

Test #47:

score: 0

Accepted

time: 2ms

memory: 3624kb

input:

output:

result:

ok answer = 1

Test #48:

score: 0

Accepted

time: 7ms

memory: 3744kb

input:

output:

result:

ok answer = 1

Test #49:

score: 0

Accepted

time: 0ms

memory: 3680kb

input:

output:

result:

ok answer = 1

Test #50:

score: 0

Accepted

time: 6ms

memory: 3680kb

input:

output:

result:

ok answer = 1

Test #51:

score: 0

Accepted

time: 5ms

memory: 3680kb

input:

output:

result:

ok answer = 1

Test #52:

score: 0

Accepted

time: 6ms

memory: 3836kb

input:

output:

result:

ok answer = 1

Test #53:

score: 0

Accepted

time: 7ms

memory: 3768kb

input:

output:

result:

ok answer = 1

Test #54:

score: 0

Accepted

time: 3ms

memory: 3748kb

input:

output:

result:

ok answer = 1

Test #55:

score: 0

Accepted

time: 0ms

memory: 3708kb

input:

output:

result:

ok answer = 1

Test #56:

score: 0

Accepted

time: 4ms

memory: 3752kb

input:

output:

result:

ok answer = 1

Test #57:

score: 0

Accepted

time: 4ms

memory: 3680kb

input:

output:

result:

ok answer = 1

Test #58:

score: 0

Accepted

time: 3ms

memory: 3912kb

input:

output:

result:

ok answer = 1

Test #59:

score: 0

Accepted

time: 2ms

memory: 3960kb

input:

output:

result:

ok answer = 1

Test #60:

score: 0

Accepted

time: 1ms

memory: 3716kb

input:

output:

result:

ok answer = 1

Test #61:

score: 0

Accepted

time: 4ms

memory: 3876kb

input:

output:

result:

ok answer = 1

Test #62:

score: 0

Accepted

time: 3ms

memory: 3768kb

input:

output:

result:

ok answer = 1

Test #63:

score: 0

Accepted

time: 4ms

memory: 3764kb

input:

output:

result:

ok answer = 1

Test #64:

score: 0

Accepted

time: 2ms

memory: 3912kb

input:

output:

result:

ok answer = 1

Test #65:

score: 0

Accepted

time: 2ms

memory: 3660kb

input:

output:

result:

ok answer = 1

Test #66:

score: 0

Accepted

time: 4ms

memory: 3668kb

input:

output:

result:

ok answer = 1

Test #67:

score: 0

Accepted

time: 2ms

memory: 3836kb

input:

output:

result:

ok answer = 1

Test #68:

score: 0

Accepted

time: 3ms

memory: 3664kb

input:

output:

result:

ok answer = 1

Test #69:

score: 0

Accepted

time: 3ms

memory: 3772kb

input:

output:

result:

ok answer = 1

Test #70:

score: 0

Accepted

time: 4ms

memory: 3660kb

input:

output:

result:

ok answer = 1

Test #71:

score: 0

Accepted

time: 1ms

memory: 3660kb

input:

output:

result:

ok answer = 1