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谁能告诉我,我的程序为什么超时?我的2085的解答代码
#include<iostream>
using namespace std;
int main(){
int arr[50001],n,m,rev,i,j,t;
while(1){
cin>>n>>m;if(n==-1&&m==-1) break;
for(i=1;i<=n;i++) arr[i]=i;
rev=0;
for(i=n-1;rev<m;i--){
for(j=n;j>i;j--){
t=arr[i];arr[i]=arr[j];arr[j]=t;
if(++rev==m) break;
}
}
for(i=1;i<=n;i++) cout<<arr[i]<<" ";
cout<<endl;
}
return 0;
}
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