大佬求助，悬赏1关
by dingronghan01 @ 2023-05-07 16:52:52
e
by Sundar_2022 @ 2023-05-09 20:31:58
@[dingronghan01](/user/657904)
```cpp
#include <bits/stdc++.h>
using namespace std;
int t,k,n,m;
int a[2005][2005],ans[2005][2005];
void Hanghui()
{
a[0][0]=a[1][0]=a[1][1]=1;
for(int i=2;i<=2000;i++){
a[i][0]=1;
for(int j=1;j<=i;j++){
a[i][j]=(a[i-1][j]+a[i-1][j-1])%k;
ans[i][j]=ans[i-1][j]+ans[i][j-1]-ans[i-1][j-1];
if(a[i][j]==0) ans[i][j]+=1;
}
ans[i][i+1]=ans[i][i];
}
}
int main()
{
scanf("%d%d",&t,&k);
Hanghui();
while(t--)
{
scanf("%d%d",&n,&m);
printf("%d\n",ans[n][min(n,m)]);
}
return 0;
}
```
by Sundar_2022 @ 2023-05-09 20:49:56
谢谢，虽然我A了
by dingronghan01 @ 2023-06-23 16:28:51