1 条题解
-
0
C++ :
#include <iostream> #include <vector> #include <algorithm> #include <string> #include <sstream> #include <cstring> #include <cstdio> #include <cstdlib> #include <cmath> #include <queue> #include <stack> #include <map> #include <set> #include <numeric> #include <cassert> #include <complex> #include <ctime> #define clr(x,a) memset(x,a,sizeof(x)) #define sz(x) (int)x.size() #define rep(i,n) for(int i=0;i<n;i++) #define repeat(i, a, b) for(int i=(a);i<=(b);i++) #define all(v) (v).begin(), (v).end() #define Unique(store) store.resize(unique(store.begin(),store.end())-store.begin()) #define X first #define Y second using namespace std; const int N=1000+10; int dp[N][N]; int main () { //freopen("in.txt","r",stdin); //freopen("out.txt","w",stdout); int n,k; while (cin>>k>>n){ int u=1; memset(dp,0,sizeof dp); for (int j=1;j<=n;j++) dp[1][j]=1; for (int i=1;i<k;i++){ for (int j=1;j<=n;j++){ for (int mul=1;mul*j<=n;mul++){ dp[i+1][mul*j]+=dp[i][j]; dp[i+1][mul*j]%=(int)1e9+7; } } } int sum=0; for (int j=1;j<=n;j++) { sum+=dp[k][j]; sum%=(int)1e9+7; } cout<<sum<<endl; } return 0; }
- 1
信息
- ID
- 226
- 时间
- 2000ms
- 内存
- 128MiB
- 难度
- (无)
- 标签
- 递交数
- 0
- 已通过
- 0
- 上传者