Submission #1604935

---

Source Code Expand

#pragma region include
#include <iostream>
#include <iomanip>
#include <stdio.h>

#include <sstream>
#include <algorithm>
#include <iterator>
#include <cmath>
#include <complex>

#include <string>
#include <cstring>
#include <vector>
#include <tuple>
#include <bitset>

#include <queue>
#include <complex>
#include <set>
#include <map>
#include <stack>
#include <list>

#include <fstream>
#include <random>
//#include <time.h>
#include <ctime>
#pragma endregion //#include
/////////
#define REP(i, x, n) for(int i = x; i < n; ++i)
#define rep(i,n) REP(i,0,n)
#define ALL(X) X.begin(), X.end()
/////////
#pragma region typedef
typedef long long LL;
typedef long double LD;
typedef unsigned long long ULL;
typedef std::pair<LL,LL> PLL;//
typedef std::pair<int,int> PII;//
#pragma endregion //typedef
////定数
const int INF = (int)1e9;
const LL MOD = (LL)1e9+7;
const LL LINF = (LL)1e18+20;
const LD PI = acos(-1.0);
const double EPS = 1e-9;
/////////
using namespace::std;

template<class T>
inline void MaxTo(T& A,T& B){if( A < B ){A=B;}}
template<class T>
inline void MinTo(T& A,T& B){if( A > B ){A=B;}}
template<class T>
inline void AddTo(T& A,T& B){A+=B;}

inline void AddToMod(LL& A,LL& B){
	if( A < 0 ){
		A = 0;
	}
	A += B;
	if( A > MOD ){
		A -= MOD;
	}
}

void solve(){
	string str;
	LL D;
	cin >> str >> D;
	int size = str.size();
	vector< vector<LL> > dp(size+1,vector<LL>(D+1,-1));
	dp[0][0] = 1;
	for(int i=1;i<=size;++i){
		LL val = 0;
		LL mul = 1;
		for(int j=i-1;j>=0;--j){
			val += (str[j]-'0')*mul;//今回切り取った値
			mul *= 10;
			if( val > D ){
				break;
			}
			for(int k=0;k<=D;++k){
				if( dp[j][k] < 0 ){continue;}
				if( k+val > D ){continue;}
				AddToMod(dp[i][k+val],dp[j][k]);
			}
		}
	}
	LL ans = 0;
	for(int k=0;k<=D;++k){
		if( dp[size][k] >= 0 ){
			AddToMod(ans,dp[size][k]);
		}
	}
	cout << ans << endl;
}

#pragma region main
signed main(void){
	std::cin.tie(0);
	std::ios::sync_with_stdio(false);
	std::cout << std::fixed;//小数を10進数表示
	cout << setprecision(16);//小数点以下の桁数を指定//coutとcerrで別	

	solve();
}
#pragma endregion //main()

Submission Info

Judge Result