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QOJ

ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#485231	#5575. Knight's Tour Redux	UESTC_DECAYALI^#	AC ✓	13ms	4128kb	C++14	968b	2024-07-20 15:15:36	2024-07-20 15:15:38

Judging History

This is the latest submission verdict.

[2024-07-20 15:15:38]
Judged

Verdict: AC
Time: 13ms
Memory: 4128kb

Show

[2024-07-20 15:15:36]
Submitted

answer

#include<cstdio>
#include<iostream>
#include<vector>
#include<utility>
#define RI register int
#define CI const int&
using namespace std;
typedef pair <int,int> pi;
int main()
{
    int n; scanf("%d",&n);
    if (n==1) return puts("POSSIBLE\n1 1"),0;
    if (n<5) return puts("IMPOSSIBLE"),0;
    vector <pi> A[15]; int s=0;
    A[5]={{1,3},{4,4},{5,1},{2,2},{3,5}};
    A[6]={{1,1},{2,4},{5,5},{6,2},{3,3},{4,6}};
    A[7]={{1,1},{2,4},{3,7},{6,6},{7,3},{4,2},{5,5}};
    A[8]={{1,1},{2,4},{3,7},{6,8},{7,5},{8,2},{5,3},{4,6}};
    A[9]={{1,1},{2,4},{3,7},{6,8},{5,5},{4,2},{7,3},{8,6},{9,9}};
    A[10]={{1,1},{2,4},{3,7},{4,10},{7,9},{6,6},{5,3},{8,2},{9,5},{10,8}};
    A[11]={{1,1},{2,4},{3,7},{4,10},{7,11},{8,8},{11,9},{10,6},{9,3},{6,2},{5,5}};
    puts("POSSIBLE");
    while (n-s>=12)
    {
        for (auto [x,y]:A[6]) printf("%d %d\n",s+x,s+y); s+=6;
    }
    for (auto [x,y]:A[n-s]) printf("%d %d\n",s+x,s+y);
    return 0;
}

Source code, Language: C++14

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 0ms

memory: 3628kb

input:

output:

POSSIBLE
1 1

result:

ok answer = 1

Test #2:

score: 0

Accepted

time: 0ms

memory: 3984kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #3:

score: 0

Accepted

time: 0ms

memory: 3976kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #4:

score: 0

Accepted

time: 0ms

memory: 3760kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #5:

score: 0

Accepted

time: 0ms

memory: 4112kb

input:

output:

POSSIBLE
1 3
4 4
5 1
2 2
3 5

result:

ok answer = 1

Test #6:

score: 0

Accepted

time: 0ms

memory: 3820kb

input:

output:

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

result:

ok answer = 1

Test #7:

score: 0

Accepted

time: 0ms

memory: 3816kb

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: 0ms

memory: 4112kb

input:

output:

result:

ok answer = 1

Test #9:

score: 0

Accepted

time: 0ms

memory: 3832kb

input:

output:

result:

ok answer = 1

Test #10:

score: 0

Accepted

time: 0ms

memory: 3788kb

input:

output:

result:

ok answer = 1

Test #11:

score: 0

Accepted

time: 0ms

memory: 4120kb

input:

output:

result:

ok answer = 1

Test #12:

score: 0

Accepted

time: 0ms

memory: 4116kb

input:

output:

result:

ok answer = 1

Test #13:

score: 0

Accepted

time: 0ms

memory: 3832kb

input:

output:

result:

ok answer = 1

Test #14:

score: 0

Accepted

time: 0ms

memory: 4116kb

input:

output:

result:

ok answer = 1

Test #15:

score: 0

Accepted

time: 0ms

memory: 4104kb

input:

output:

result:

ok answer = 1

Test #16:

score: 0

Accepted

time: 0ms

memory: 4112kb

input:

output:

result:

ok answer = 1

Test #17:

score: 0

Accepted

time: 0ms

memory: 3896kb

input:

output:

result:

ok answer = 1

Test #18:

score: 0

Accepted

time: 0ms

memory: 3880kb

input:

output:

result:

ok answer = 1

Test #19:

score: 0

Accepted

time: 0ms

memory: 3828kb

input:

output:

result:

ok answer = 1

Test #20:

score: 0

Accepted

time: 0ms

memory: 4112kb

input:

output:

result:

ok answer = 1

Test #21:

score: 0

Accepted

time: 4ms

memory: 3812kb

input:

output:

result:

ok answer = 1

Test #22:

score: 0

Accepted

time: 13ms

memory: 3852kb

input:

output:

result:

ok answer = 1

Test #23:

score: 0

Accepted

time: 8ms

memory: 3832kb

input:

output:

result:

ok answer = 1

Test #24:

score: 0

Accepted

time: 8ms

memory: 4116kb

input:

output:

result:

ok answer = 1

Test #25:

score: 0

Accepted

time: 4ms

memory: 3856kb

input:

output:

result:

ok answer = 1

Test #26:

score: 0

Accepted

time: 4ms

memory: 3828kb

input:

output:

result:

ok answer = 1

Test #27:

score: 0

Accepted

time: 4ms

memory: 3812kb

input:

output:

result:

ok answer = 1

Test #28:

score: 0

Accepted

time: 8ms

memory: 3820kb

input:

output:

result:

ok answer = 1

Test #29:

score: 0

Accepted

time: 8ms

memory: 3852kb

input:

output:

result:

ok answer = 1

Test #30:

score: 0

Accepted

time: 8ms

memory: 4108kb

input:

output:

result:

ok answer = 1

Test #31:

score: 0

Accepted

time: 8ms

memory: 4080kb

input:

output:

result:

ok answer = 1

Test #32:

score: 0

Accepted

time: 6ms

memory: 3872kb

input:

output:

result:

ok answer = 1

Test #33:

score: 0

Accepted

time: 2ms

memory: 3768kb

input:

output:

result:

ok answer = 1

Test #34:

score: 0

Accepted

time: 3ms

memory: 4108kb

input:

output:

result:

ok answer = 1

Test #35:

score: 0

Accepted

time: 3ms

memory: 3808kb

input:

output:

result:

ok answer = 1

Test #36:

score: 0

Accepted

time: 3ms

memory: 3848kb

input:

output:

result:

ok answer = 1

Test #37:

score: 0

Accepted

time: 6ms

memory: 3816kb

input:

output:

result:

ok answer = 1

Test #38:

score: 0

Accepted

time: 7ms

memory: 3836kb

input:

output:

result:

ok answer = 1

Test #39:

score: 0

Accepted

time: 1ms

memory: 3784kb

input:

output:

result:

ok answer = 1

Test #40:

score: 0

Accepted

time: 5ms

memory: 3768kb

input:

output:

result:

ok answer = 1

Test #41:

score: 0

Accepted

time: 5ms

memory: 3880kb

input:

output:

result:

ok answer = 1

Test #42:

score: 0

Accepted

time: 6ms

memory: 4116kb

input:

output:

result:

ok answer = 1

Test #43:

score: 0

Accepted

time: 7ms

memory: 3812kb

input:

output:

result:

ok answer = 1

Test #44:

score: 0

Accepted

time: 5ms

memory: 3880kb

input:

output:

result:

ok answer = 1

Test #45:

score: 0

Accepted

time: 3ms

memory: 3768kb

input:

output:

result:

ok answer = 1

Test #46:

score: 0

Accepted

time: 5ms

memory: 4076kb

input:

output:

result:

ok answer = 1

Test #47:

score: 0

Accepted

time: 2ms

memory: 4108kb

input:

output:

result:

ok answer = 1

Test #48:

score: 0

Accepted

time: 6ms

memory: 3820kb

input:

output:

result:

ok answer = 1

Test #49:

score: 0

Accepted

time: 1ms

memory: 3812kb

input:

output:

result:

ok answer = 1

Test #50:

score: 0

Accepted

time: 6ms

memory: 3808kb

input:

output:

result:

ok answer = 1

Test #51:

score: 0

Accepted

time: 5ms

memory: 4108kb

input:

output:

result:

ok answer = 1

Test #52:

score: 0

Accepted

time: 6ms

memory: 3864kb

input:

output:

result:

ok answer = 1

Test #53:

score: 0

Accepted

time: 3ms

memory: 3780kb

input:

output:

result:

ok answer = 1

Test #54:

score: 0

Accepted

time: 6ms

memory: 4116kb

input:

output:

result:

ok answer = 1

Test #55:

score: 0

Accepted

time: 1ms

memory: 3812kb

input:

output:

result:

ok answer = 1

Test #56:

score: 0

Accepted

time: 5ms

memory: 3792kb

input:

output:

result:

ok answer = 1

Test #57:

score: 0

Accepted

time: 4ms

memory: 4128kb

input:

output:

result:

ok answer = 1

Test #58:

score: 0

Accepted

time: 3ms

memory: 3820kb

input:

output:

result:

ok answer = 1

Test #59:

score: 0

Accepted

time: 2ms

memory: 4116kb

input:

output:

result:

ok answer = 1

Test #60:

score: 0

Accepted

time: 1ms

memory: 3900kb

input:

output:

result:

ok answer = 1

Test #61:

score: 0

Accepted

time: 0ms

memory: 3780kb

input:

output:

result:

ok answer = 1

Test #62:

score: 0

Accepted

time: 3ms

memory: 4116kb

input:

output:

result:

ok answer = 1

Test #63:

score: 0

Accepted

time: 4ms

memory: 3772kb

input:

output:

result:

ok answer = 1

Test #64:

score: 0

Accepted

time: 2ms

memory: 4084kb

input:

output:

result:

ok answer = 1

Test #65:

score: 0

Accepted

time: 5ms

memory: 4108kb

input:

output:

result:

ok answer = 1

Test #66:

score: 0

Accepted

time: 5ms

memory: 3764kb

input:

output:

result:

ok answer = 1

Test #67:

score: 0

Accepted

time: 2ms

memory: 4076kb

input:

output:

result:

ok answer = 1

Test #68:

score: 0

Accepted

time: 3ms

memory: 3808kb

input:

output:

result:

ok answer = 1

Test #69:

score: 0

Accepted

time: 7ms

memory: 3872kb

input:

output:

result:

ok answer = 1

Test #70:

score: 0

Accepted

time: 8ms

memory: 4112kb

input:

output:

result:

ok answer = 1

Test #71:

score: 0

Accepted

time: 1ms

memory: 3856kb

input:

output:

result:

ok answer = 1