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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#297317#6303. Inversion552HzWA 49ms19360kbC++142.9kb2024-01-04 10:37:462024-01-04 10:37:46

Judging History

你现在查看的是最新测评结果

  • [2024-01-04 10:37:46]
  • 评测
  • 测评结果:WA
  • 用时:49ms
  • 内存:19360kb
  • [2024-01-04 10:37:46]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef double db;
const int N=2010;
const ll mod=998244353;
//const ll mod=1e9+7;
#define rep(i,a,n) for (int i=a;i<=n;i++)
#define per(i,a,n) for (int i=n;i>=a;i--)
#define vi vector <int>
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define sz(a) ((int) (a).size())
#define me(f, x) memset(f, x, sizeof(f))
#define uint unsigned int
#define ull unsigned long long 
#define i128 __int128
#define pb emplace_back
#define pii pair<int,int>
#define debug(x) std::cout<<x<<endl
//#define endl '\n'
#define mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
ll powmod(ll a,ll b) {ll res=1;a%=mod; assert(b>=0); for(;b;b>>=1){if(b&1)res=res*a%mod;a=a*a%mod;}return res;}
template<typename type>
inline void read(type &x)
{
    x=0;bool flag(0);char ch=getchar();
    while(!isdigit(ch)) flag=ch=='-',ch=getchar();
    while(isdigit(ch)) x=(x<<1)+(x<<3)+(ch^48),ch=getchar();
    flag?x=-x:0;
}
template<typename type>
inline void write(type x,bool mode=1)//0为空格,1为换行
{
    x<0?x=-x,putchar('-'):0;static short Stack[50],top(0);
    do Stack[++top]=x%10,x/=10; while(x);
    while(top) putchar(Stack[top--]|48);
    mode?putchar('\n'):putchar(' ');
}
//head~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//begin~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//end~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int a[N],n,dis[N][N];
bool query(int l,int r){
	int cnt=0,x;
	if(l>r){
		swap(l,r);
	}
	if(r-l<=1){
		if(dis[l][r]==-1){
			cout<<"? "<<l<<" "<<r<<endl;
			cout.flush();
			cin>>x;
			dis[l][r]=x;
		}else{
			x=dis[l][r]%2;
		}
		return x%2;	
	}
	if(dis[l][r]==-1){
		cout<<"? "<<l<<" "<<r<<endl;
		cout.flush();
		cin>>x;
		dis[l][r]=x;
		cnt+=dis[l][r]%2;
	}else{
		cnt+=dis[l][r]%2;
	}
	if(dis[l+1][r]==-1){
		cout<<"? "<<l+1<<" "<<r<<endl;
		cout.flush();
		cin>>x;
		dis[l+1][r]=x;
		cnt-=dis[l+1][r]%2;
	}else{
		cnt-=dis[l+1][r]%2;
	}
	if(dis[l][r-1]==-1){
		cout<<"? "<<l<<" "<<r-1<<endl;
		cout.flush();
		cin>>x;
		dis[l][r-1]=x;
		cnt-=dis[l][r-1]%2;
	}else{
		cnt-=dis[l][r-1]%2;
	}	
	if(dis[l+1][r-1]==-1){
		cout<<"? "<<l<<" "<<r-1<<endl;
		cout.flush();
		cin>>x;
		dis[l+1][r-1]=x;
		cnt+=dis[l+1][r-1]%2;
	}else{
		cnt+=dis[l+1][r-1]%2;
	}	
	return (cnt%2+2)%2;
}
void solve(){
	cin>>n;
	//vector<int> q;
	for(int i=1;i<=n;i++){
		a[i]=i;
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			if(i==j){
				dis[i][j]=0;
			}else{
				dis[i][j]=-1;
			}
		}
	}
	sort(a+1,a+1+n,query);
	cout<<"! ";
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			if(a[j]==i){
				cout<<j<<" ";
			}
		}
	}
	cout<<endl;
}


int main() 
{
	std::ios::sync_with_stdio(false);
	cin.tie(0); 
	cout.tie(0);
	int _=1;
	while(_--){
		solve();
	}
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 3652kb

input:

3
0
0
1

output:

? 1 2
? 1 3
? 2 3
! 2 3 1 

result:

ok OK, guesses=3

Test #2:

score: -100
Wrong Answer
time: 49ms
memory: 19360kb

input:

1993
1
0
1
1
0
0
1
1
1
1
1
1
0
0
1
1
0
0
1
1
1
0
0
0
1
0
1
0
0
0
1
1
0
1
1
1
0
0
1
1
0
0
1
1
0
1
1
1
1
1
1
1
0
1
1
0
0
0
1
1
1
1
0
0
0
0
1
1
0
1
1
1
1
0
1
1
0
0
1
1
1
0
0
0
1
0
0
0
0
0
1
1
0
1
1
1
1
0
1
0
0
0
0
0
1
0
1
1
0
1
0
0
0
1
0
0
1
1
0
0
0
0
1
1
1
0
0
0
1
1
0
0
0
1
0
1
0
0
1
1
0
0
1
1
1
0
0
0...

output:

? 2 997
? 3 997
? 2 996
? 2 996
? 997 1993
? 998 1993
? 997 1992
? 997 1992
? 2 1993
? 3 1993
? 2 1992
? 2 1992
? 1 2
? 2 3
? 2 1991
? 2 1991
? 2 4
? 3 4
? 2 1990
? 2 1990
? 2 5
? 3 5
? 2 6
? 3 6
? 2 7
? 3 7
? 2 8
? 3 8
? 2 1989
? 2 1989
? 2 9
? 3 9
? 2 10
? 3 10
? 2 11
? 3 11
? 2 12
? 3 12
? 2 1988...

result:

wrong output format Unexpected end of file - int32 expected