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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#379513#8566. Can We Still Qualify For Semifinals?ucup-team1447#AC ✓40ms5876kbC++142.4kb2024-04-06 17:44:222024-04-06 17:44:23

Judging History

你现在查看的是最新测评结果

  • [2024-04-06 17:44:23]
  • 评测
  • 测评结果:AC
  • 用时:40ms
  • 内存:5876kb
  • [2024-04-06 17:44:22]
  • 提交

answer

// what is matter? never mind. 
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,sse4,popcnt,abm,mmx,avx,avx2") 
#include<bits/stdc++.h>
#define For(i,a,b) for(int i=(a);i<=(b);++i)
#define Rep(i,a,b) for(int i=(a);i>=(b);--i)
#define ll long long
//#define int long long
#define ull unsigned long long
#define SZ(x) ((int)((x).size()))
#define ALL(x) (x).begin(),(x).end()
using namespace std;
inline int read()
{
    char c=getchar();int x=0;bool f=0;
    for(;!isdigit(c);c=getchar())f^=!(c^45);
    for(;isdigit(c);c=getchar())x=(x<<1)+(x<<3)+(c^48);
    if(f)x=-x;return x;
}

#define fi first
#define se second
#define pb push_back
#define mkp make_pair
typedef pair<int,int>pii;
typedef vector<int>vi;

#define maxn 500005
#define inf 0x3f3f3f3f

int n,p[maxn];
int e[15][15],f[15][15];
pii t[maxn];
int m;

int d[15];

bool solve(int s){
	For(i,1,n) For(j,1,n) e[i][j]=f[i][j];
	For(i,1,n)d[i]=0;
	For(i,1,n) For(j,1,n) if(e[i][j]==1) ++d[i];
//	For(i,1,n)cout<<d[i]<<" "; cout<<" d\n";
	vi o;
	For(i,2,n){
		if(s>>(i-1)&1){
			
		}else{
			o.pb(i);
		}
	}
	
	while(o.size()){
		sort(o.begin(),o.end(),[&](int u,int v){
			return d[u]<d[v];
		});
		int u=o.back();o.pop_back();
		if(d[u]>d[1]) return 0;
		int tmp=d[1]-d[u];
		Rep(i,(int)o.size()-1,0){
			int x=o[i];
			if(e[x][u]==-1){
				if(tmp) --tmp;
				else ++d[x];
			}
		}
	}
//	cout<<"ok "<<s<<"\n";
	return 1;
}

void work()
{
	n=10;
	For(i,1,n)For(j,1,n)e[i][j]=-1;
	int k=read(); string s;cin>>s;
	if(k<=20){
		puts("YES");
		return;
	}
	For(i,0,k-1){
		int u=t[i].fi,v=t[i].se;
	//	cout<<"u,v "<<u<<" "<<v<<" "<<(s[i]&1)<<"\n";
		e[u][v]=(s[i]&1);
		e[v][u]=(!e[u][v]);
	}
	For(i,1,1)For(j,2,n) if(e[i][j]==-1) e[i][j]=1,e[j][i]=0;
	For(i,1,n)For(j,1,n) f[i][j]=e[i][j];
	
	vector<pii>o;
	For(i,1,n)For(j,i+1,n)if(f[i][j]==-1)o.pb(mkp(i,j));
	For(s,0,(1<<(o.size()))-1){
		For(i,1,n) d[i]=0; 
		For(i,1,n) For(j,1,n) if(f[i][j]==1) d[i]++;
		For(i,0,(int)o.size()-1){
			int u=o[i].fi,v=o[i].se;
			if(s>>i&1) ++d[v];
			else ++d[u];
		}
		int cnt=0;
		For(i,2,n) cnt+=(d[i]>d[1]);
		if(cnt<4) {
			puts("YES");
			return;
		}
	}
	
	puts("NO");
}

signed main()
{
	n=10;
	For(i,1,10)p[i]=i;
	For(i,1,9){
		For(j,1,5) t[m++]=mkp(p[j],p[n+1-j]);
		rotate(p+2,p+n,p+n+1);
	}
	int T=read();
	while(T--)work();
	return 0;
}
/*

*/

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 5620kb

input:

3
3
111
25
1000010101111111111010100
35
01111011110111101111011110111101111

output:

YES
YES
NO

result:

ok 3 token(s): yes count is 2, no count is 1

Test #2:

score: 0
Accepted
time: 1ms
memory: 5804kb

input:

10
16
0110000001010100
17
01111000110110101
15
001100010101111
16
0010101010011100
19
0000000100010110100
16
0011101010011100
18
011110010001100000
18
000110101001100011
20
01100010000100100100
15
001000111001101

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
YES

result:

ok 10 token(s): yes count is 10, no count is 0

Test #3:

score: 0
Accepted
time: 2ms
memory: 3636kb

input:

10
37
0110000001010100011101001011100110001
39
000100111101101001100101101000000000100
35
00111000100111100101011010111100100
33
010000010001110010110001101110001
30
000100010100000010010110101010
31
0000101000011010101001010000000
44
00001000000111101011010110000101100011000100
42
01111011110001001...

output:

NO
NO
NO
NO
NO
NO
NO
NO
NO
NO

result:

ok 10 token(s): yes count is 0, no count is 10

Test #4:

score: 0
Accepted
time: 12ms
memory: 5580kb

input:

10
23
01100000010101000111010
38
01111001100011000101011110101001101001
27
010000000001001001110001001
26
01101001110011101101000110
8
00001000
22
0110100110001110110001
9
000100010
24
000000100101101010100100
6
011000
29
01101010100101000000000000100

output:

YES
NO
NO
NO
YES
YES
YES
YES
YES
NO

result:

ok 10 token(s): yes count is 6, no count is 4

Test #5:

score: 0
Accepted
time: 6ms
memory: 5584kb

input:

10
30
011000000101010001110100101110
29
01001010010011101110010110010
28
0110000000001000101101001001
23
01101001110011101101000
23
01000001000111001011000
24
011110001000010001010000
23
01001011010101001000011
30
000110011001010010000000000010
24
000110111001110011000011
28
000110001000011011110110...

output:

NO
NO
NO
YES
YES
YES
YES
NO
YES
NO

result:

ok 10 token(s): yes count is 5, no count is 5

Test #6:

score: 0
Accepted
time: 1ms
memory: 5876kb

input:

10
21
011000000101010001110
21
000110110101001010010
22
0111101101001100101101
24
000000001000101011000101
21
011010011100111011010
20
00110000010001101010
21
010010111100010000100
24
010100000100011010110010
23
00001010000110101010010
25
0000000000001000001101110

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
YES

result:

ok 10 token(s): yes count is 10, no count is 0

Test #7:

score: 0
Accepted
time: 34ms
memory: 5860kb

input:

10
26
01100000010101000111010010
26
01101010010100100111011100
26
00110010110100000000010010
27
011100010101110010110101101
30
010100011000001000110101001100
30
011110001000010001010000001001
28
0101100101000010100001101010
26
00101000000000000100000110
28
0110101101010000111000110001
27
00011011110...

output:

NO
NO
NO
NO
NO
NO
NO
NO
NO
NO

result:

ok 10 token(s): yes count is 0, no count is 10

Test #8:

score: 0
Accepted
time: 40ms
memory: 5632kb

input:

10
25
0010100010011010111001111
26
01001010100010101010001010
26
01111001110000100111011110
26
10001000100110101110011110
26
10101010100110101110011110
27
110100010101010011010111001
27
101010101001101011100111101
31
1000010001010100110001011011110
37
1000101111000100110000011000000100101
40
1000101...

output:

NO
NO
NO
NO
NO
NO
NO
NO
NO
NO

result:

ok 10 token(s): yes count is 0, no count is 10

Test #9:

score: 0
Accepted
time: 18ms
memory: 5648kb

input:

10
26
00001010000000000000000000
26
00000010000000000000000000
26
01101010100010101011011110
26
00011011110111101111011110
27
001100110101011001110111101
27
000110111101111011110111101
28
0110001001000010011101111011
29
01000000010001101000011110111
29
01000000010000101101011110111
30
01000011110111...

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
NO

result:

ok 10 token(s): yes count is 9, no count is 1

Test #10:

score: 0
Accepted
time: 1ms
memory: 5628kb

input:

10
1
0
2
00
10
0001101110
14
00101010000011
20
00000010010100101010
25
0000000101000100100001111
35
01110011010000101010000010010000100
40
0000100110001110101100001001000110000001
44
01011010110010101110011000010001010011100011
45
010010001001010011110111101011011000000100001

output:

YES
YES
YES
YES
YES
YES
NO
NO
NO
NO

result:

ok 10 token(s): yes count is 6, no count is 4

Extra Test:

score: 0
Extra Test Passed