题解，可直接复制

#include <iostream>
using namespace std;
int main(){
int n,m;
cin>>n>>m;
int q=1;
int s=1;
int a[1000][1000];
for (int i=1;i<=n;i++){
a[i][1]=a[i-1][1]+1;
}
for (int i=1;i<=n;i++){
for (int j=1;j<=m;j++){
a[j][i]=a[j-1][i]+q;
}
q++;
}
for (int i=1;i<=n;i++){
for (int j=1;j<=m;j++){
cout<<a[j][i]<<" ";
}
cout<<endl;
}
}