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#672005#9484. Colored Complete GraphDEMONKILLERAC ✓143ms7396kbC++201.7kb2024-10-24 15:18:202024-10-24 15:18:21

Judging History

你现在查看的是最新测评结果

  • [2024-10-24 15:18:21]
  • 评测
  • 测评结果:AC
  • 用时:143ms
  • 内存:7396kb
  • [2024-10-24 15:18:20]
  • 提交

answer

#include<bits/stdc++.h>
#define N 50010
using namespace std;
int n,cnt,Cnt[2],head[N<<1],fa[N<<1],To[N<<2],Val[N<<2],Nxt[N<<2];
void add(int from,int to,int val){
    To[++cnt]=to;
    Nxt[cnt]=head[from];
    Val[cnt]=val;
    head[from]=cnt;
    Cnt[val]++;
}
int find(int x){return fa[x]==x?x:fa[x]=find(fa[x]);}
void Merge(int x,int y){x=find(x),y=find(y);if(x^y)fa[x]=y;}
bool Query(int u,int v){
    if(u>v)swap(u,v);
    printf("? %d %d\n",u,v);
    fflush(stdout);
    fflush(stdin);
    char c=getchar();
    while(c^'R'&&c^'B')c=getchar();
    return c=='R';
}
void Print(int now,int fa,int col){
    if(fa)printf("%d %d\n",now,fa);
    for(int i=head[now];i;i=Nxt[i])
        if(To[i]^fa&&col==Val[i])
            Print(To[i],now,col);
}
int main(){
    scanf("%d",&n);
    for(int i=1;i<=n<<1;i++)
        fa[i]=i;
    for(int i=2;i<=n;i++)
        if(!Query(1,i)){
            add(1,i,0);
            add(i,1,0);
            Merge(1,i);
        }
        else{
            add(1,i,1);
            add(i,1,1);
            Merge(n+1,n+i);
        }
    int l=2,r=n+2;
    while(max(Cnt[0],Cnt[1])<(n-1)<<1){
    	while(find(l)==find(1))l++;
    	while(find(r)==find(n+1))r++;
    	if(!Query(l,r-n))Merge(l,r-n),add(l,r-n,0),add(r-n,l,0);
    	else Merge(l+n,r),add(l,r-n,1),add(r-n,l,1);
	}
    printf("!\n");
    bool Flag=true;
    for(int i=2;i<=n;i++)
        if(find(i)^find(1)){
            Flag=false;
            break;
        }
    if(Flag)return Print(1,0,0),0;
    Flag=true;
    for(int i=2;i<=n;i++)
        if(find(i+n)^find(1+n)){
            Flag=false;
            break;
        }
    if(Flag)return Print(1,0,1),0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3968kb

input:

3
B
R
B

output:

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

result:

ok AC

Test #2:

score: 0
Accepted
time: 4ms
memory: 3868kb

input:

983
B
R
R
B
B
B
B
B
R
B
R
R
R
R
R
R
R
B
B
R
R
B
R
B
R
R
B
B
R
B
R
R
R
R
B
R
B
B
B
R
R
R
B
B
R
R
B
R
B
R
B
B
B
R
B
R
R
B
R
B
B
R
R
R
B
B
B
B
R
B
R
R
B
R
B
B
R
B
R
B
R
B
R
R
R
B
B
B
R
R
B
B
B
R
R
B
R
B
B
B
R
B
B
R
R
B
B
R
R
R
R
B
R
R
B
B
B
R
B
B
B
B
R
B
R
R
B
R
R
R
B
R
R
B
R
R
B
R
R
B
R
B
R
B
B
R
B
R
...

output:

? 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
...

result:

ok AC

Test #3:

score: 0
Accepted
time: 0ms
memory: 5932kb

input:

75
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R

output:

? 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
...

result:

ok AC

Test #4:

score: 0
Accepted
time: 2ms
memory: 3984kb

input:

430
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
...

output:

? 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
...

result:

ok AC

Test #5:

score: 0
Accepted
time: 0ms
memory: 5928kb

input:

238
B
R
R
B
B
B
B
B
R
B
R
R
R
R
R
R
R
B
B
R
R
B
R
B
R
R
B
B
R
B
R
R
R
R
B
R
B
B
B
R
R
R
B
B
R
R
B
R
B
R
B
B
B
R
B
R
R
B
R
B
B
R
R
R
B
B
B
B
R
B
R
R
B
R
B
B
R
B
R
B
R
B
R
R
R
B
B
B
R
R
B
B
B
R
R
B
R
B
B
B
R
B
B
R
R
B
B
R
R
R
R
B
R
R
B
B
B
R
B
B
B
B
R
B
R
R
B
R
R
R
B
R
R
B
R
R
B
R
R
B
R
B
R
B
B
R
B
R
...

output:

? 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
...

result:

ok AC

Test #6:

score: 0
Accepted
time: 0ms
memory: 5812kb

input:

42
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
B
R
R
R
R
R
R
R
R
R
R
R
R
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B

output:

? 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
? 2 30
? 3 30
? 4 30
...

result:

ok AC

Test #7:

score: 0
Accepted
time: 0ms
memory: 3936kb

input:

759
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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R
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R
R
R
R
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R
R
R
R
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R
R
R
R
R
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R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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R
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R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
...

output:

? 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
...

result:

ok AC

Test #8:

score: 0
Accepted
time: 2ms
memory: 3988kb

input:

389
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
...

output:

? 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
...

result:

ok AC

Test #9:

score: 0
Accepted
time: 1ms
memory: 3812kb

input:

47
R
R
R
R
R
R
R
B
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B

output:

? 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
...

result:

ok AC

Test #10:

score: 0
Accepted
time: 35ms
memory: 6084kb

input:

14657
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
...

output:

? 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
...

result:

ok AC

Test #11:

score: 0
Accepted
time: 7ms
memory: 6468kb

input:

15755
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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R
R
R
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R
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R
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R
R
R
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R
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R
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R
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R
R
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R
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R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
...

output:

? 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
...

result:

ok AC

Test #12:

score: 0
Accepted
time: 30ms
memory: 4820kb

input:

14236
B
R
R
B
B
B
B
B
R
B
R
R
R
R
R
R
R
B
B
R
R
B
R
B
R
R
B
B
R
B
R
R
R
R
B
R
B
B
B
R
R
R
B
B
R
R
B
R
B
R
B
B
B
R
B
R
R
B
R
B
B
R
R
R
B
B
B
B
R
B
R
R
B
R
B
B
R
B
R
B
R
B
R
R
R
B
B
B
R
R
B
B
B
R
R
B
R
B
B
B
R
B
B
R
R
B
B
R
R
R
R
B
R
R
B
B
B
R
B
B
B
B
R
B
R
R
B
R
R
R
B
R
R
B
R
R
B
R
R
B
R
B
R
B
B
R
B
...

output:

? 1 2
? 1 3
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? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #13:

score: 0
Accepted
time: 54ms
memory: 6508kb

input:

19615
R
R
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...

output:

? 1 2
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? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #14:

score: 0
Accepted
time: 24ms
memory: 6704kb

input:

30668
R
R
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...

output:

? 1 2
? 1 3
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? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #15:

score: 0
Accepted
time: 85ms
memory: 6580kb

input:

39166
R
R
R
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...

output:

? 1 2
? 1 3
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? 1 34
? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #16:

score: 0
Accepted
time: 18ms
memory: 6848kb

input:

35168
R
R
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...

output:

? 1 2
? 1 3
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? 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
...

result:

ok AC

Test #17:

score: 0
Accepted
time: 29ms
memory: 5900kb

input:

45420
R
R
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...

output:

? 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
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? 1 25
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? 1 27
? 1 28
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? 1 30
? 1 31
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? 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
...

result:

ok AC

Test #18:

score: 0
Accepted
time: 28ms
memory: 7292kb

input:

45526
R
R
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...

output:

? 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
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? 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
...

result:

ok AC

Test #19:

score: 0
Accepted
time: 61ms
memory: 6148kb

input:

48225
R
R
R
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...

output:

? 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
...

result:

ok AC

Test #20:

score: 0
Accepted
time: 30ms
memory: 6984kb

input:

40451
R
R
R
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...

output:

? 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
...

result:

ok AC

Test #21:

score: 0
Accepted
time: 76ms
memory: 7228kb

input:

47265
R
R
R
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...

output:

? 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
...

result:

ok AC

Test #22:

score: 0
Accepted
time: 29ms
memory: 5716kb

input:

40881
R
R
R
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...

output:

? 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
...

result:

ok AC

Test #23:

score: 0
Accepted
time: 127ms
memory: 6888kb

input:

44327
B
R
R
B
B
B
B
B
R
B
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B
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...

output:

? 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
...

result:

ok AC

Test #24:

score: 0
Accepted
time: 45ms
memory: 6216kb

input:

48093
R
R
R
R
R
R
R
R
R
R
R
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R
R
R
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...

output:

? 1 2
? 1 3
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? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #25:

score: 0
Accepted
time: 39ms
memory: 6168kb

input:

49999
R
R
R
R
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...

output:

? 1 2
? 1 3
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? 1 35
? 1 36
? 1 37
? 1 38
? 1 39
? 1 40
? 1 41
? 1 42
? 1 43
? 1 44
? 1 45
...

result:

ok AC

Test #26:

score: 0
Accepted
time: 92ms
memory: 7396kb

input:

50000
R
R
R
R
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...

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 1 8
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? 1 10
? 1 11
? 1 12
? 1 13
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? 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
...

result:

ok AC

Test #27:

score: 0
Accepted
time: 116ms
memory: 7376kb

input:

50000
R
R
R
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...

output:

? 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
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? 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
...

result:

ok AC

Test #28:

score: 0
Accepted
time: 139ms
memory: 7088kb

input:

49999
B
R
R
B
B
B
B
B
R
B
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...

output:

? 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
...

result:

ok AC

Test #29:

score: 0
Accepted
time: 143ms
memory: 7364kb

input:

50000
R
R
R
R
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...

output:

? 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
...

result:

ok AC

Test #30:

score: 0
Accepted
time: 1ms
memory: 5852kb

input:

4
B
R
R
B
B

output:

? 1 2
? 1 3
? 1 4
? 2 3
? 2 4
!
2 1
4 2
3 2

result:

ok AC

Test #31:

score: 0
Accepted
time: 1ms
memory: 3780kb

input:

5
B
R
R
B
B
B

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 2 3
? 2 4
!
5 1
2 1
4 2
3 2

result:

ok AC

Test #32:

score: 0
Accepted
time: 1ms
memory: 5860kb

input:

6
R
R
R
R
B
B
B
B
B

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 2 6
? 3 6
? 4 6
? 5 6
!
6 1
5 6
4 6
3 6
2 6

result:

ok AC

Test #33:

score: 0
Accepted
time: 81ms
memory: 7092kb

input:

50000
B
R
R
B
B
B
B
B
R
B
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...

output:

? 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
...

result:

ok AC

Test #34:

score: 0
Accepted
time: 119ms
memory: 7324kb

input:

50000
R
R
R
R
R
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...

output:

? 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
...

result:

ok AC

Test #35:

score: 0
Accepted
time: 60ms
memory: 6144kb

input:

50000
R
R
R
R
R
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...

output:

? 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
...

result:

ok AC

Test #36:

score: 0
Accepted
time: 49ms
memory: 7012kb

input:

50000
R
R
R
R
R
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R
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...

output:

? 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
...

result:

ok AC

Extra Test:

score: 0
Extra Test Passed