include[HTML_REMOVED]
include[HTML_REMOVED]
using namespace std;
const int N=100010;
int q[N];
int main(){
int n,m;
scanf(“%d %d”,&n,&m);
for(int i=0;i[HTML_REMOVED]>1;
if(q[mid]>=x) r=mid;
else l=mid+1;
}
if(q[l]!=x) cout<<”-1 -1”<[HTML_REMOVED]>1;
if(q[mid]<=x) l=mid;
else r=mid-1;
}
cout<<l<<endl;
}
}
return 0;
}
样例
输入
6 3
1 2 2 3 3 4
3
4
5
输出
输出样例:
3 4
5 5
-1 -1
```